Soil fertility, tillage, and mulching effects on rainfed maize grown after rice [study conducted at IRRI, Philippines]
1981
Syarifuddin, A. | Zandstra, H.G.
The nutrient availability was higher in soils after puddled flooded rice than after non puddled flooded rice. However, the high moisture content and compact soil after puddled flooded rice resulted in poorer maize establishment, growth, and yield. Tillage improved soil aeration after puddled flooded rice but reduced nutrient availability. Maize yields from plots not tilled after rice harvest did not differ significantly from those from tilled plots. Maize responded less to fertilizer applied after puddled flooded than after non puddled flooded rice. With complete fertilizer and mulching treatments significantly affected lodging, root and top growth, and grain yield. Application of nitrogen and phosphorus greatly increased maize dry matter and grain yield. Deep fertilizer placement induced roots to grow deeper into the soil and absorb more nutrients and moisture. Mulching reduced top soil moisture losses and resulted in better fertilizer availability and maize yield
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