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Sabtu, 07 Mei 2016



Container gardening these days is very common. Gone are those days when a strip of land was necessary for practicing the wonderful habit called Gardening. Now anybody can start their own garden if he/she has the interest to start. When we talk about container gardening, the most important word is container. Many people have asked me in the past about the containers. What material is good for the plants? is it necessary to plant in earthy pots only? Can we plant in metal containers? So I have decided to write an article on the very basics: About the various containers which you can use for planting.

Following are some of the various materials used for making the containers which we use in container gardening.

Terra cotta: These are good value for money. Usually in reddish orange in color, these can be in found in many color and texture. Their earthy looks make them suitable for almost any garden. The porosity of the material helps the excess moisture to evaporate and allow plant roots to breathe.  To make their water retention capacity better, the unglazed side of the pots is sometime fired with glass like coating. These are waterproof and can hold moisture better than the normal unglazed one.


Plastic pots:Plastic pots are very common these days. They can be found in many shapes and sizes. You can also use your old bottles to plant. They are clean and non-porous and easy to move from one place to another.

Wooden pots: Pots made up from rot resistant red wood or cedar can be useful for planting. They provide very good insulation from weather outside. To prevent the pots form rotting you can also add some sand (at least an inch deep) at the bottom of the container and then put the soil.

Fabric pots: These are ultimate portable containers. These are made up of fabric these are rot proof as they are usually made up of polypropylene. They look much more like terra cotta or wooden containers.

Concrete pots:  You can prepare concrete pots of your own or you can buy it from outside. These are weather resistant and durable. On the other side, these can be heavier than the other pots.

Metal pots:  Pots made up of brass, copper iron etc can look aesthetically very superior.  Many planters use them to enhance the beauty of their gardens. If you are using metal containers it is advisable to keep your containers far from the direct sun light. These containers can get very hot in the sun and can harm the plant. It is also not easy to make drainage hole in the metal containers.

Biodegradable pots: these pots are made up from bio degradable materials like peat moss or coconut coir.  These biodegradable pots are very useful for sensitive plants like Lupins. These pots are designed as such that you can put them into a larger pot. The roots grow through the material and after some time the pot decomposes and thus it minimize the root disturbance.

If you are doing container planting it is a good idea to use self watering containers. We have discussed the basics of seal watering container in our last article. You can find it here. 


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Sabtu, 23 April 2016



Rehovot, Israel-based Rosetta Green Ltd., which specializes in crop improvement for the agriculture and alternative fuel industries using unique genes called microRNAs, has successfully completed an experiment producing human growth hormone (HGH) and validated its biological activity. Proteins produced by both treated and control algae were tested with an in vitro activity test assay by an independent third party using the conventional proliferation method. The activity test assay found that Rosetta Green’s treated algae exhibited hormonal activity.

The project is part of a joint European effort to manufacture chemicals and proteins in algae, which is implemented and funded by the European Union as part of the European Commission’s Seventh Framework Program for Research and Technology Development (FP7). More than ten European organizations are participating in this project, including companies and leading universities, which has an estimated budget of about $7 million US. The project is being managed by Professor Sammy Boussiba of the Microalgal Biotechnology Laboratory of Ben Gurion University of the Negev.
Rosetta Green focuses on using microalgae to develop and produce human proteins for therapeutics, a process that reduces the currently steep drug production costs associated with using mostly mammalian cells and bacteria.

According to Amir Avniel, Rosetta Green’s CEO, “Algae may be an effective source for the production of proteins and vaccines. Rosetta Green has vast experience working with molecular methods in algae. The company worked on the development of designated algae in order to produce the protein in cooperation with the EU. Algae can be used for multiple applications such as producing chemicals, industrial food supplements, bio fuel and food. We believe that the technology that we develop provides significant advantage to improve various traits in plants and algae. We continually seek partners to develop our products and technologies.”

Growth hormone is a peptide hormone secreted by the pituitary gland. Among its functions are the regulation of protein production and the stimulation of bone growth in children. Growth hormone is normally secreted throughout a person’s life, but the amount decreases by 14% every decade after the age of 21. A deficiency in this hormone is known to cause growth block, short stature and dwarfism.

Currently, growth hormone is produced by major multi-nationals such as Pfizer, Lilly, and Merck Serono and used as a prescription medicine to treat children with growth problems and adults with hormone deficiency as well as other symptoms characterized by growth complications. Total annual sales of human growth hormone are estimated at approximately $3 Billion US.

Growth hormone is administered today primarily through daily injections over several years. The accumulated cost can reach hundreds of thousands of dollars per child. Rosetta Green believes that manufacturing the hormone using microalgae will likely reduce today’s high cost of production, which relies upon currently available techniques. 
More info at http://www.rosettagreen.com/.

CCRES special thanks to Professor Sammy Boussiba of the Microalgal Biotechnology Laboratory of Ben Gurion University of the Negev.

CCRES ALGAE Project 
part of 
Croatian Center of Renewable Energy Sources (CCRES)
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Kamis, 14 April 2016

Today we will discuss the use of used tea leaves in gardening. We all love tea. What better it would be if we can use the tea leaves after taking out the liquor from it and use it in garden.

Tea leaves are very rich in organic materials, disposing them like trash is like throwing out valuable natural resource. Adding them in the compost pile will reduce the need of adding other fertilizers.

They are a fantastic source of Nitrogen. After taking out the tea liquor, the remaining leaves can be used as a great source of nitrogen in the compost pile. It can be a good supplement to balance the brown materials (rich in carbon) of the compost pile. To know more about carbon nitrogen balance check out our earlier article on composting ingredients.

You can take out the tea leaves from the tea with a strainer.  Store these along with your kitchen scraps. Once the bucket gets filled dump them into the compost heap and let them decompose.

If you are using tea bags to prepare tea, you can use the bags also as composting ingredient. But while dumping the tea bags, cut them open and take the tea leaves out.  Not all tea bags can decompose. In cases where the bags are made up of nylons, they will not do any help in composting. Some tea bags can be made up of paper or silk they will decompose but the rate will be very different from the leaves. That is why it makes sense to take out the leaves from the bags.

Tea leaves can also be used as mulch. Unlike other kitchen scraps, tea leaves don’t need to be composted before applying as mulch. Tea leaves hold water in large quantity. So don’t apply if your garden soil is damp and your plant requires dryer soil.

Tea leaves also protect the plant from many soil borne diseases. It is a little acidic in nature so mixing with soil will decrease the pH of the soil, and provide ideal growing condition for many plants. Tea leaves are rich potassium (K) and phosphorous (K) apart from Nitrogen (N), which are key elements in plant growth. Tea leaves are beneficial for Mushrooms in particular. Tea leaves mixed with peat moss works wonder for Mushrooms. Apart from Mushrooms tea leaves have also shown good results in rose cultivation.


 
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Jumat, 08 April 2016

CROATIAN CENTER of RENEWABLE ENERGY SOURCES 
(CCRES)
 
 BIOMASS
 
The organic or waste materials obtained from the plants and animals, is known as biomass. Since plants and animals contain energy, the biomass also contains energy. Plants get energy from the sun by the process of photosynthesis, while the animals eat plants; hence biomass is an important source of energy.

The energy obtained from biomass is called as biomass energy. The biomass energy is type of alternative or renewable energy since the plants and trees will keep on growing and generating the wastes continuously, so this source of energy will be available for unlimited period of time.

The various types of garbage collected in our cities are also a type of biomass. Though the living plants are not considered to be the biomass, the garbage left by them in the form of fallen leaves, dead trees, broken branches of the trees, wasted and leftover crops, chips and pieces of wood etc are all considered to be biomass. The bark and saw dust left from the lumber mills and even the tires and livestock manure can be considered as biomass.

The trash from the house and offices contains some paper products that cannot be recycled back to the other paper products but they can also be used as the biomass. Recycling such wastes for producing biomass fuel would reduce pressure on our landfills. It is unbelievable that all these materials that create lots of disposal problems can be used to generate energy that too in the form of electricity.

In US, California itself produces almost 60 million bone dry tons of biomass every year, of which almost five million tons is used to produce biomass energy in the form of electricity. The biomass collected in California comprises of lumber mills wastes, wooden waste collected from urban areas, residues from the agricultural lands and forests, and other livestock.

The wastes generated by the humans and animals like cows are also types of biomass. By using this type of biomass for producing energy it becomes easier to manage and control the landfills.

Biomass used as the Source of Energy

All the types of biomass contain one or the types of plants and animals wastes. When the biomass obtained from plants it is burnt it catches fire instantly or after some time and releases a lot of heat. During burning the chemical energy stored within the biomass is converted into heat energy. The heat produced during the burning of biomass can be used for a number of applications like heating water, heating the rooms, producing steam, cooking the food, and for other domestic and industrial applications.

Some decomposing garbage, and wastes from humans and animals can also be used as biomass to produce methane gas, which can be used directly as the fuel. Methane is an important part of natural gas, which is used extensively as a cooking gas and also for running a number of vehicles like cars and trucks. The methane gas obtained by this method is also called as the landfill gas or biogas.

The Fuels Obtained from Biomass

Besides using the biomass for producing heat, it can also be used to produce fuels. The fuels produced from the biomass are called as biofuels. The biofuels can be used independently to or in combination with the other fuels like gasoline and diesel. Some of the popular biofuels made from the biomass are ethanol, biodiesel and natural gas.

Ethanol is produced by fermentation of sugar which can be found in sugarcane, grains like corn, sorghum and wheat, and other sources like potato skins, rice, sugar beets and yard clippings. The biodiesel can be produced from vegetable oil and animal fat feedstock. In this age of escalating fuel prices, biodiesel is one of the most popular types of alternative fuel for the vehicles. Biodiesel is mixed with traditional diesel in certain proportions to power the vehicles. The biodiesel is a clean fuel and does not produce any pollution. The natural gas can be obtained from the biomass like cow dung, human wastes, and livestock wastes. Methane, which is important part of the natural gas, is produced from the biomass.

Benefits of Using the Biomass Energy

Here are some of the important benefits of biomass energy:

1) Biomass energy is obtained mainly from the plants, animals, human wastes and garbage which would have otherwise created dirty environment and lots of disposal problems. When converted to biomass energy most of the wastes get burnt completely or they get converted to useful manure. Thus using biomass energy helps keeping our surroundings clean.

2) Biomass is a renewable source of energy that would last as long as there is plant, animal, and human life on the earth.

3) Biomass helps producing indigenous fuels and helps reducing dependency for fuels on other countries. 
CCRES 
special thanks to   
Escapeartist, Inc
 CROATIAN CENTER of RENEWABLE ENERGY SOURCES 
(CCRES)
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Senin, 04 April 2016


This blog follows my previous blogs on soil-less growing media and Peat moss. After Peat Moss, now it is time for its alternative, Coconut Coir or coco coir. Now a days many of us are trying coconut coir as an alternative to peat moss due to several reasons, most important of which is it is much more environment friendly than peat moss. For an organic gardener it is crucial to make use of the things which are renewable.

coco coir vs soil


coco coirOrigin of Coco Coir

The English word "coir" comes from the Tamil and Malayalam word kayaru. which mean cord, to be twisted. In a coconut the husk portion(between the hard inner shell and the outer coat of the coconut) is the place from where the coir
are extracted. Coir fibres make up about a third of the coconut husk, The rest, called peat, pith or dust.

Coir Fiber can be of two types white fibre and Brown fiber. White fibres are extracted from green coconut while we get the brown fibres when those are extracted from the fully matured coconut. The white fibre are the used in manufacturing rope, mats, and fishing nets(due to its resistance to saltwater). Brown Fibre is used to prepare doormats, brushes, mattress and also for insulation and packaging. The process of taking out the husk from the fruit is also known as De-husking.

The second part of the husk which covers the majority of the portion is known as coconut Coir, (or coir) or Coco peat (cocopeat). Once considered as waste
coco coir 2
product, this is now used as an alternative to peat moss in Gardening. Many people call this coconut coir by various names such coco coir, coco pith, coco peat, cocopeat, coir dust, coco soil or only coir. For simplicity I will represent this by the single word coir.

Coir does provide a suitable substrate for horticultural use as a soil-less potting media. As coir is high in sodium and potassium, and sometimes contains excess salt, it needs to be treated before using as a growth medium for plants. It is first washed, screened and graded into various granularity and density.
India and Sri lanka produces most of the coir in the world. Apart from these two, Mexico, Indonesia, Vietnam etc have also started producing coir now a days.

Coir can be of two types viz, sterilized and unsterilized. In case of sterilized coir peat the fungi Trichoderma is not present due to sterilization. Trichoderma work in symbiosis with plant roots and protect the plant from harmful pathogenic fungi such as pythium. That is one of the reason people now a days are shifting from using sterilized to unsterilized one.

 

Coco Coir Uses:

Coconut coir can be used almost anywhere you can use peat moss such as seed starters, bedding, gardens, container etc. It is resistant to bacterial and fungal growth. It provides all new opportunities for potting mix suppliers, seedling nurseries, Hydro-phonic growers and green house growers.

In horticulture and gardening, coconut coir is a strongly recommended substitute for Peat moss because it is free of bacteria and fungal spores.As a substitute it  helps slowing down peat extraction from environmentally sensitive swamps worldwide. It also has very good water retention and suitable aeration facility which helps to faster growth of roots.

Coco Coir contains a good amount of cellulose and lignin. As mushroom thrive on Cellulose, coir is used as a substrate to cultivate Mushrooms.
Coir generally have a pH level in the range of 6-6.5. which is very good pH level for most of the plants.
plants in coco coir

You can not use coir as a sole component in the medium to grow plants. The nutrient content in it is very low. If you insists growing solely on coir, you need to add nutrients as per the need of the specific plants. Coir from countries like India and Sri Lanka though contains several macro and micro-plant nutrients including substantial quantities of potassium, which interfere with the magnesium availability of the soil.

Generally, coir has a deficiency of Calcium and Magnesium, so adding a good amount of dolomite (which contains both of those elements) can be a very good idea.

Apart from agricultural usage dry coir can be used as an oil absorbent specially on slippery floors as it has very good absorbing ability. It is also used to absorb animal waste.

Coir is hydrophilic unlike peat moss and can quickly re-absorb water even when completely dry. Coco peat is porous and cannot be over watered easily. Coconut coir is not only a natural, organic product, but unlike peat moss a renewable one.


COCOPEAT BLOCK - EXPANDS TO 24 KG COCO PEAT POWDER



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Why you should grow strawberries in Coir?Different soilless media for growing plants 
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Sabtu, 26 Maret 2016




Indirect land-use change (ILUC) means that if you take a field of grain and switch the crop to biofuel, somebody somewhere will go hungry unless those missing tonnes of grain are grown elsewhere.
Economics often dictates that the crops to make up the shortfall come from tropical zones, and so encourage farmers to carve out new land from forests.
Burning forests to clear that land can pump vast quantities of climate-warming emissions into the atmosphere, enough in
theory to cancel out any of the benefits that biofuels were meant to bring.
The European Commission has run 15 studies on different biofuel crops, which on average conclude that over the next decade Europes biofuels policies might have an indirect impact equal to 4.5 million hectares of land – an area the size of Denmark.
Some in the biofuels industry argue that the Commissions science is flawed and that the issue could be tackled by a major overhaul of agricultural strategy to improve productivity or by pressing abandoned farmland back into action. Waste products from biofuels production can also be fed to animals, they say, so reducing the pressure on land resources.
Conventional biofuels like biodiesel increase carbon dioxide emissions and are too expensive to consider as a long-term alternative fuel, a draft EU report says.
The study ‘EU Transport GHG [greenhouse gases]: Routes to 2050’ estimates that before indirect effects are counted, the abatement cost of reducing Europe’s emissions with biofuels is between €100-€300 per tonne of carbon.
At current market prices, this would make their CO2 reduction potential up to 49 times more expensive than buying carbon credits on the open market at €6.14 a tonne.   
But the EU’s authors conclude that it “it is not possible (and useful) to determine cost effectiveness figures for [conventional] biofuels” because their indirect effect - measured in cleared forests and grasslands (‘ILUC’) - make it a CO2-emitting technology.
The latest report will feed a growing unease about the reasons for the EUs original biofuels policy - justified in environmental terms - and the way it has developed since.
“The truth is that policy makers inside and outside Europe are doing biofuels for other reasons than environmental ones,” said David Laborde, a leading agricultural scientist and author of key biofuels reports for the European Commission.
“It’s a new and easy way to give subsidies to farmers, and it’s also linked to industrial lobbies that produce these biodiesels, and also what they will call energy security,” he told EurActiv.
“They want to diversify the energy supply, and keep their foreign currencies instead of buying oil from the Middle East. They prefer to keep it for something even if it is not efficient or even green,” he added.
The 10% target
In 2007, the EU first set a 10% target for the use of blended biofuels in transport by 2020.
Although the target was re-sourced from ‘biofuels’ to ‘renewable energy’ in 2009, analysts say that 8.8% of the EU target will still be provided by biofuels, and up to 92% of that will come from conventional biofuels like biodiesel.
Industrial associations disagree, putting the EU’s ratio of sugar-based ethanol, one of the best-performing biofuels, to biodiesel, one of the worst, at 22%-78%.
But both the original announcement and the Renewable Energy Directive two years later conditioned biofuel use on subsequently neglected criteria of cost-efficiency, sustainability and, where available, the use of second generation fuels.  
“I don’t think we are there on cost-effectiveness,” said GĂ©raldine Kutas, Brussels representative of the Brazilian Sugarcane Industry Association (UNICA).
“There are no monetary provisions to support this in the directive, and second generation biofuels are still a promise. They are not commercially available yet,” she said.
Even trying to address the issue of indirect sustainability criteria for biofuels had gummed up the EUs policy-making process, she acknowledged. 
French farmers
Research by EurActiv has uncovered evidence that the EU’s original biofuels target was set as much for industrial and political reasons, as environmental concerns.
Claude Turmes, the European Parliament’s rapporteur responsible for steering the Renewable Energy Directive into law, said that business lobbies had influenced his negotiations with the then-French Presidency of the European Council.
“There were two lobbies, the sugar farmers lobby and the German car industry who tried to prevent the EU’s CO2 and cars legislation,” Turmes (Greens/Luxembourg) told EurActiv.
“The origin of the 10% renewables in transport target was the fact that these two lobbies joined forces to impose it on the Commission.”
EU insiders spoken to by EurActiv agreed, saying that biofuels had been a quid-pro-quo demanded for the imposition of ‘greener’ measures in the directive that would encourage wind and solar energy, and cut emissions. 
European sugar farmers had suffered in the 2006 Common Agricultural Policy reform which reduced the guaranteed sugar price by 36% and opened up the European sugar market to global competition.
A guaranteed market for agrifuel made from sugar-based ethanol held out some prospect of compensation. And the strength of the French farmers lobby made removing the 10% target “an absolute no go area” for Paris, Turmes said.
“The farm industry was obviously interested in biofuels, biochemicals and the bio-economy more generally,” Kutas added.
But Europe’s sugar farmers profited far less from the EU’s biofuels policy than growers of feedstocks for biodiesel, better suited to the continent’s diesel-based auto fleet.  
Car industry
EU officials say that the car industry was also instrumental in pushing for the biofuels target to be included as a compromise to bridge the gap between the 130g of CO2 per km that the EU wanted as a target for 2012 and the 140g that the car industry was prepared to offer.
“It was no secret,” a source told EurActiv. “It was very clear what they were lobbying for and it went all the way up the Commission”.
As a result, officials in the EU’s energy directorate responsible for biofuels did not treat research which questioned the fuel’s environmental credentials in the same light as that which supported it, multiple sources confirm.  
The EU’s biggest error was “that we started to make a policy without knowing the effect it would have,” Laborde said.
“We are now discussing the land use effect after saying for ten years that we need biofuels to reduce emissions,” he went on. “It was a serious mistake.”
Indirect emissions proposal
Brussels is due to publish a proposal measuring the indirect emissions caused by biofuels later this year, distinguishing between low-emitting biofuels such as ethanol and high-emitting ones like biodiesel.
But the EU’s decision-making process has been paralysed by the ongoing dispute between its energy directorate – which does not want ILUC factors considered – and its climate directorate, which does. And there are other problems too.    
Both the Renewable Energy and Fuel Quality directives contain ‘grandfathering’ clauses exempting all existing biofuels installations as of 2014 from further legislation until 2017.
As the biofuels industry’s existing capacity is already on the cusp of meeting the 10% target, according to a new report by the environmental consultants Ecofys, this would create massive overcapacity.  
The Institute for European Environmental Policy has calculated that on current trends, land conversion of between 4.7 million and 7.9 million hectares would be needed to accommodate the extra biofuels production, an area roughly the size of Ireland. 
But the introduction of any ILUC factor would probably rule out high-emitting conventional biodiesels, the majority of Europe’s biofuels production.
That would create a political backlash in EU states such as France and Germany, and potentially tear up the compromise which allowed the Renewable Energy Directive to be passed in the first place.  
For now, the proposal remains stuck in the corridors of an EU that appears equally frightened of the political consequences of admitting a policy mistake and the environmental consequences of denying it.
CCRES special thanks to 
Brussels Network Office:
International Press Centre
Boulevard Charlemagne, 1 b1
B-1041 Brussels
CROATIAN CENTER of RENEWABLE ENERGY SOURCES (CCRES)
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