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Articles by Sherin Khan
Total Records ( 5 ) for Sherin Khan
  Johar Ali , Jehan Bakht , Mohammad Shafi , Sherin Khan and Wajid Ali Shah
  An experiment to study the uptake of nitrogen by maize as affected by various combinations of nitrogen and phosphorus was conducted at Malakandher Research Farms, NWFP. Agricultural University Peshawar, Pakistan during 1997. Nitrogen and phosphorus had a significant effect on grain yield, nitrogen uptake at tasseling, maturity and in grain while non-significant effect of N and P was recorded for harvest index. Plots treated with NP combination of 150:90 kg ha -1 produced maximum grain yield while fertilizer combination of 150:120 NP kg ha -1 resulted in maximum nitrogen uptake at tesseling, maturity and in grain.
  Zia- ul- Islam , Sherin Khan , Jehan Bakht and Wajid Ali Shah
  The study was conducted to determine the frequency of various N levels, lodging and seed quality in wheat, at Malakandher Research Farms, NWFP Agricultural University, Peshawar, during 2000. Statistical analysis of the data revealed that various levels of nitrogen had a significant effect on all parameters except seed vigor. Plots fertilized with 170 kg N ha-1 had maximum productive tillers m-2, spikelet spike-1, grains spike-1, grain yield and harvest index. Whereas minimum biological yield was recorded in plots fertilized with 200 kg N ha-1. Nitrogen levels of 140 kg ha-1 significantly increased germination %age and seed size by weight. In case of nitrogen application frequencies, plots applied with nitrogen in 2 split doses i.e., 50 % at seeding time and 50 % at 2nd irrigation significantly increased number of productive tillers m-2, spikelets spike-1, grains spike-1, grain yield, harvest index, germination % age and seed size by weight. However, nitrogen applied in full at 2nd irrigation recorded maximum biological yield.
  Nazim Hussain , Imran Haider Shamsi , Sherin Khan , Habib Akbar and Wajid Ali Shah
  This experiment was conducted to study the beneficial effect of legumes and inorganic quantities of N on maize crop. Different levels of nitrogen i.e. 0, 40, 80 and 120 kg ha-1 were used. Besides maize alone, intercrops were; maize+mungbean, maize+pigeon pea and maize+janter. Maize @ 40, mungbean 20, pigeon pea 50 and janter at 25 kg ha-1 were used respectively. Maximum seedlings emerged m‾2 (40.20) was obtained at 120 kg N ha-1 in maize alone. Maximum days (61.7) to earing were taken by maize intercropped with janter. Maximum days (67.50) to silking were taken by maize+janter intercrop at 0 kg N ha-1. Maximum plant height (165.50 cm) was observed in maize alone at 120 kg N ha-1. Maximum cob length (12.55 cm) was noticed in maize and mungbean intercrop under 40 kg N ha-1. Maximum biological yield (28429.63 kg ha ha-1) was obtained from maize alone by 40 kg N ha-1. Maximum number of grains cob-1 (309) was obtained from maize and pigeon pea intercropping at 120 kg N ha-1. For maximum yield potential maize alone and maize+mungbean intercropping was at par statistically at 80 and 40 kg N ha-1 by giving 3463 and 3444 kg ha-1 yield, respectively. Overall legume intercrop was superior by decreasing less yield of maize crop in addition to legume seed yield and N cost minimization.
  Johar Ali , Jehan Bakht , Mohammad Shafi , Sherin Khan and Wajid Ali Shah
  In order to study the effect of various levels of N and P (applied alone or in combinations) on maize, an experiment was conducted at Malakandher Research Farms, NWFP Agricultural University, Peshawar, Pakistan during 1997. Statistical analysis of the data revealed that different levels of nitrogen and phosphorus had a significant effect on plant height, number of rows cob-1, thousand grains weight, shelling percentage, barrenness percentage, number of grains cob-1, number of cobs plant-1 and grain yield. Taller plants were attained by those plots, which received nitrogen and phosphorus in 150.60 kg ha-1 ratio. Similarly, plots treated with fertilizer combination of 150:90 NP kg ha-1 resulted in maximum, number of rows cob-1 (16.00), maximum number of cobs plant-1 (2.00) and maximum grain yield (3841.35 kg ha-1).
  Sharifullah Khan , Sherin Khan and Bakht Roidar Khan
  An experiment was conducted at Malakandher Research Farm, NWFP Agriculture University Peshawar during the summer season of 1996. The experiment was laid out in split-plot arrangement in Randomized Complete Block (RCB) design in 3 x 3m2 sub-plot with four replications. The objective of this study was to evaluate the adverse losses often occurred by natural diseasers i.e. hails storms, wind storms & insect pest to sunflower, determined through the artificial induction of leaf incision at different growth stages for the plant height at maturity. No of leaves per plant, days to 50% flowering. Days to maturity, Disc diameter & number of grains per disc. On average of all treatments carried out, (l1), two holes per leaf at early four leaf stage (S1), resulted in significantly higher plant height and the No of grains per head significantly decreased to 1239 with (l1), two holes per leaf from that of (l2), control i.e. 1677 seeds per head.
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