Response of wheat yield components to type of N-fertilizer, their levels and application time
2000
Jan, M.T. | Khan, S. (NWFP Agricultural Univ., Peshawar (Pakistan). Dept. of Agronomy)
Field experiment was conducted to study the effect of N-type fertilizers on the yielding components of wheat (Triticum aestivum L.), applied at sowing, vegetative and boot stage. Spike population and number of grains per spike had a significant linear increased with increase in fertilizer levels. Grain weight remained unaffected by fertilizer levels. Types of fertilizer (Ammonium sulphate and Ammonium nitrate) had no significant effect on spike population, number of grain and 1000 grain weight. Split dose (50 kg N ha(- 1) of fertilizer application at sowing and vegetative stage (S1 + S2) or at vegetative and boot stage (S2 + S3) significantly increased number of productive tillers per unit area. Generally 50 kg N ha(-1) applied at boot stage increased grain weight, while number of grains per spike showed no response to split application at any growth stage.
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Эту запись предоставил National Agricultural Research Centre