Abstract:
Field experiments were conducted to study the effect of organic manures in
combination with chemical fertilizers on the yield of paddy and wheat in a farmer's field
at Said Alian village in Dera Ismail Khan district. Organic manures included farm yard
manure, green manuring with dhincha and mungbean alongwith a control. Fertilizer
treatments were 0-0-0, 60-30-0, 80-60-0, 120-60-0, 120-90-0 and 120-90-60 kg N-PzO,-
K20 ha'1 . Organics were applied in 1990. Fertilizer treatments were applied to rice crop
and then the following wheat crop. Experimental design used was split-plot with three
replications. In case of paddy, all the organic manures increased the yield significantly
over control. Green manuring with dhincha produced higher yields at all levels of
fertilizers than the other organic manures. All the fertilizer treatments were economical.
The results of wheat trial showed that farm yard manure increased the grain yield
significantly over control and other organics. The grain yield of wheat in the green
manuring treatments was at par with that in the control. Fertilizer treatment receiving
80-60-0 kg N-P}OfK20 ha'1 was more economical than the other fertilizer treatments.
