Abstract:
A study involving graded high seed rates, fertilizers, irrigations and varieties/lines was undertaken at Wheat Research Institute, AARI, Faisalabad during 2001-2002. The objective was to revive declining yield of late planted wheat crop. Seed rates from 75-200 kg with 25 kg increment per hectare, three irrigation levels (3, 5, 7), Three fertilizer levels (recommended, +30% and + 60%) and 20 varieties/lines were included. Lower seed rates from 75 to 125 kg yielded maximum. Higher seed rates above 125 kg did not add to the yield. Five irrigations improved the yield of late planted crop but seven irrigations were either detrimental or equal to five irrigations. Similarly, fertilizer NPK dose of 160-115-175 kg per hectare showed nominal yield increase. The added advantage of irrigation and fertilizer was of small magnitude and hardly justifiable on economic grounds. No variety/line sustained yield in late planting. The late planted crop is, thus, a doomed proposition. The strategy for food self-sufficiency would, therefore, rest on revival of early planting.
Page(s):
121-128
DOI:
DOI not available
Published:
Journal: Journal of Agricultural Research, Volume: 43, Issue: 2, Year: 2005