The effect of method of soil cultivation on yield and fertilizer response of maize grown on a forest ochrosol.
1969
Ofori , C.S., Soil Research Institute, Private Mail Bag, Kwadaso, Kumasi, Ghana | Nandy, S., University of Science and Technology, Kumasi, Ghana
A significant increase in yield of grain maize was obtained by ploughing to 9 in depth as compared with unploughed land. Maize yield increased by 15% on ploughed land. Deeper ploughing to 15 in depth had no advantage over medium ploughing (9 in). Nitrogen and potassium had no significant effect on yield of maize in the 4 seasons of cropping on this soil. Response to fertilizer phosphorus was significant in 3 of the 4 seasons. The effect of this nutrient increased with depth of ploughing. A significant depressive effect of fertilizer nitrogen on pH was obtained on the unploughed land after 3 seasons of cropping.
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