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- Title
EFFECT OF DIFFERENT RATES OF NITROGEN AND PHOSPHORUS FERTILIZERS ON GROWTH AND YIELD OF MAIZE.
- Authors
Mukhtar, Tanweer; Arif, Muhammad; Hussain, Shahid; Tariq, Muhammad; Mehmood, Khalid
- Abstract
Response of maize crop to various NP levels was studied at Maize and Millets Research Institute, Yusafwala, Sahiwal, Pakistan during kharif 2009. Six NP rates (0 - 0, 200-100, 250-125, 300-150, 350-175 and 400-200 kg/ha) were tried on two maize hybrids (YH-1898 and YH-1921) for growth and yield. Results showed that all fertilizer, rates significantly increased the plant height, 1000-grain weight, grain number per ear, grains weight per ear and grains yield of both hybrids over control. NP rate of 250-125 kg gave maximum 1000-grain weight (430.0 9), grain number (658/ear), grain weight per ear (281.3 g) and grain yield (8.237 t/ha), followed by 300-1 50 kg NP. The highest level of NP (400- 200 kg) declined all these parameters except plant height which attained maximum value (230.50 cm). It means that higher NP doses beyond optimum level delayed crop maturity which ultimately reduced the yield.
- Subjects
PAKISTAN; NITROGEN fertilizers &; the environment; FERTILIZERS &; the environment; PHOSPHATE fertilizers; CORN growth research; CORN growth; PLANT growth; CROP yields
- Publication
Journal of Agricultural Research (03681157), 2011, Vol 49, Issue 3, p333
- ISSN
0368-1157
- Publication type
Article