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2. Agroforestry - Wikipedia

   en.wikipedia.org/wiki/Agroforestry

   In one example, a ten-year experiment in Malawi showed that, by using the fertilizer tree Gliricidia (G. sepium) on land on which no mineral fertilizer was applied, maize/corn yields averaged 3.3 metric tons per hectare (1.5 short ton/acre) as compared to 1 metric ton per hectare (0.45 short ton/acre) in plots without fertilizer trees or ...

3. Agricultural lime - Wikipedia

   en.wikipedia.org/wiki/Agricultural_lime

   Agricultural lime, also called aglime, agricultural limestone, garden lime or liming, is a soil additive made from pulverized limestone or chalk. The primary active component is calcium carbonate . Additional chemicals vary depending on the mineral source and may include calcium oxide .

4. Subsistence agriculture - Wikipedia

   en.wikipedia.org/wiki/Subsistence_agriculture

   Subsistence agriculture generally features: small capital/finance requirements, mixed cropping, limited use of agrochemicals (e.g. pesticides and fertilizer), unimproved varieties of crops and animals, little or no surplus yield for sale, use of crude/traditional tools (e.g. hoes, machetes, and cutlasses), mainly the production of crops, small ...

5. Agriculture - Wikipedia

   en.wikipedia.org/wiki/Agriculture

   Agriculture encompasses crop and livestock production, aquaculture, and forestry for food and non-food products. [1] Agriculture was a key factor in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in the cities.

6. Organic fertilizer - Wikipedia

   en.wikipedia.org/wiki/Organic_fertilizer

   Fertilizer trees aid organic farming by bringing nutrients from the depths of the soil, and by assisting in the regulation of water usage. [ 35 ] Leguminous cover crops or fertilizer trees are also grown to enrich soil as a green manure through nitrogen fixation from the atmosphere; [ 36 ] as well as phosphorus (through nutrient mobilization ...

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