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 .
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 .
Within 3-4 days of green manure
finished and ready for use .
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.