Research Article 
Effect of Nitrogen Application Techniques on Different Parameters of Yield in Rice (Oryza sativa)
Muhammad Rasheed, M. Anjum Ali, Nasir Saleem, M. Asif and M. Aslam
Pakistan Journal of Biological Sciences, 1999, 2(3), 978-979.
Abstract
A factorial experiment comprised of two varieties viz. B-385 (V2) and KS-282 (V1) along with four fertilizer treatments, was conducted at University of Agriculture, Faisalabad. The treatments for nitrogen application techniques used were T1 (control), T2 (½ N + total P + total K applied at transplanting). T3 (1/3 N at transplanting, 1/3 N at tillering and 1/3 N at flowering stage) and T4 (total NPK applied at transplanting). V1 produced more panicles bearing tillers (7.76), 1000-grain weight (22.97 gm), paddy yield (2.92 kg), No. of tillers (8.16), No. of spikelets (122.4), 1000-grain weight (23.64), yield (2.85 kg) and harvest index (30.275). The treatment T2 followed the T3 in the above mentioned parameters which were statistically at par. PK-NK% were non-significant whereas to NK% are also behave similarly under different treatments. Tillering, panicle formation and seed setting are the critical stages contributing maximum to yield. The application of fertilizer in three split dose with a little more stress at panicle initiation stage is best technique to increase paddy yield.
ASCI-ID: 1-1032
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