To-day I have those three fields sown with Canada peas, and in the spring they shall be ploughed under for
green manure.
Salters was mainly agricultural; for, though he read "Josephus" and expounded it, his mission in life was to prove the value of
green manures, and specially of clover, against every form of phosphate whatsoever.
Research has shown almost universal beneficial effects of green manuring on rice yields and that
green manure can substitute for up to 60-100 kg fertilizer nitrogen (N)/ha and many studies have shown that it can enhance the availability of native or applied phosphorus (P) and of micronutrients [7].
In general greater productions of
green manure or crop biomass greater will the microbial and beneficial microorganism population.
Nasiri (2009) also argues in his study that a lack of community involvement is one of the constraints in using
green manure. Variables such as community participation in decision- making are also factors that have an influence on the adoption of bio-fertilizers [11].
Within 3-4 days of
green manure finished and ready for use [5].
According to scientific studies and practical evidence,
green manure acts on diverse soil fertility aspects by: increasing dry matter content; decreasing Al and Mn toxicity due to the high complexity and pH; promoting nutrient recycling; extracting and mobilizing nutrients from the deepest layers of the soil and subsoil, including Ca, Mg, K, P and micronutrients; extracting fixed phosphorus; and fixing atmospheric N symbiotically with Leguminosae (VON OSTERROHT, 2002).
Keywords: Cowpea,
green manure, maize, profitability, soil fertility
The primary value of
green manure and legume crops residues as a source of N is realized when green or organic manure decomposes and its organic N is transformed into available form.
The main plots were the
green manure's sowing dates for the lettuce transplant (DAT) (with treatment 0 consisting of the simultaneous planting of
green manures and lettuce, and treatment 60 consisting of the sowing of
green manures 60 days prior to lettuce transplant), and the sub-plots consisted of the cultivated crops (monocropping and intercropping lettuce with the
green manures black oat [Avena strigosa Schreb] cv.
A: Usually planted in fall, fast-growing
green manure crops provide protection against soil erosion over the winter months and add orqanic matter that improves fertility.
It can be harvested and used as food for humans, chickens or fish, or used as a "
green manure" for building soil fertility.
green manure - a growing crop that is plowed under to enrich soil