Maelezo ya kiufundi ya udongo
Ni rahisi kusema kwamba mkulima anachohitaji kufanya ni kuongeza mbolea na angevuna vya kutosha kulisha familia yake na wengine waliobaki kuuza. Walakini, ikiwa hana rasilimali na hakuweza kulisha familia yake vya kutosha hatakuwa na wasiwasi juu ya kulisha familia yake na ya jirani. Katika makala Sayansi , Foley, et al . (2005) wameonyesha kuwa njia nyingi za kisasa za kilimo zinazohitaji matumizi makubwa ya mbolea za kemikali na kupeleka maji kwenye maeneo ya pembezoni hayawezekani. Bunch (2002) pia ameelezea kuwa mbolea ya mchanga wa kitropiki inaweza hata kuwa na tija, kulingana na zao na udongo.
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Rasilimali Muhimu 01-07-1984 One aspect of ECHO's ministry is behind the scenes for most of our readers. We help college professors and students in the sciences identify research projects that would be of benefit to the small Third World farmer. Several ideas that could be done at an undergraduate level are written up in...
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Rasilimali Muhimu01-01-1985 Green manure crops are crops that are [often times in North America] grown to be turned under to increase soil fertility. Leguminous green manure crops ( i.e., those which can make nitrogen fertilizers from atmospheric nitrogen) can offer small-scale Third World farmers a tremendous number of...
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Rasilimali Muhimu01-01-2002 Acidification of soil is a natural process with major ramifications on plant growth. As soils become more acid, particularly when the pH drops below 4.5, it becomes increasingly difficult to produce food crops. As soil pH declines, the supply of most plant nutrients decreases while aluminum and a...
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Rasilimali Muhimu20-01-2009 All plants need certain mineral elements for proper growth, development, and maintenance. The basic structure of all organisms is built of carbon (C), oxygen (O) and hydrogen (H). Plants obtain these elements from water (H2O) in the soil and carbon dioxide (CO2) in the air, so no input is...
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Rasilimali Muhimu01-08-2010 Worm or vermiculture is a useful technique for recycling kitchen and livestock wastes into a rich organic fertilizer, for producing high-protein feed for poultry and initiating a lucrative business selling worms and worm castings for the small farm. Worms are invaluable partners in building the...
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Rasilimali Muhimu01-06-2013 Rick Burnette wrote an article for Issue 7(July 2010) of ECHO Asia Notes, titled “Charcoal Production in 200-Liter Horizontal Drum Kilns.” My article takes the charring process a step further by exploring the rapidly re-emerging world of biochar. Biochar is a form of charcoal, produced through...
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Rasilimali Muhimu01-01-2014 In order to achieve high levels of agricultural productivity in the tropics at the lowest possible economic and ecological costs, we need to properly understand the relationship between nutrients in the soil and crop productivity. For this to happen, the current understanding needs to change. The...
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Rasilimali Muhimu17-08-2016 Farmers and gardeners in semi-arid and arid regions of the world face two associated but separate problems, which limit the crops they can grow and the yield of these crops. The underlying problem is lack of rainfall needed for growing plants. The second is accumulation of salts in the root zone....
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