Green Global
Foundation   Journal
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EFFECT OF SOME SECONDARY AND MICRO NUTRIENTS ALONG WITH ORGANIC AMENDMENTS ON T. AMAN (Pages : 51 - 58)

A field experiment was conducted in the “Tista Meander Floodplain Soils” at BINA (Bangladesh Institute of Nuclear Agriculture) sub-station farm. Tajhat Rangpur, during Kharif 2002 with T. aman (cv. BRRI dhan 32)) grown with an objective of evaluating the direct renewed and residual effects of secondary nutrients (S & Mg), micro nutrients and organic amendments ( PM and CD ) on the growth, yields and nutrients uptake by crops. The surface soil was sandy loam texture, having pH, 6.30; organic matter, 1.24%; total N, 0.11% ; available P, 2.44 ppm; exchangeable K, 0.05 meq %; available S, 6.62 ppm; exchangeable Mg, 1.37 meq %; available Zn, 0.45ppm and available B, 0.17 ppm respectively. The experiments were designed with eight treatments laid out in a randomized complete block design with three replications. The eight treatments were viz. T1: NPK (control), T2: NPK + S, T3: NPK + S + Mg, T4: NPK + S + Mg + Zn, T5: NPK + S + Mg + Zn + B, T6: NPK + S + Mg + Zn + B + Mo, T7: NPK + Poultry manure (PM) and T8: NPK + Cowdung (CD). All plot received 80 kg N ha-1 , 20 kg P ha-1 and 30 kg K ha-1 both in the T. aman. The doses of secondary, micro nutrients, PM and CD were 30 kg S ha-1 , 15 kg Mg ha-1 , 5 kg Zn ha-1 , 2 kg B ha-1 , 1.5 kg Mo ha-1 , 5 ton PM ha-1 and 5 ton CD ha-1 . The grain and straw yields of T. aman rice significantly influenced due to application of secondary nutrients, micronutrients and organic amendments though the different treatments were not prominent on panicle length. Grain yields of T. aman rice varied from 3410 kg to 3937 kg ha-1 , with the highest yield recorded in the treatment T7: N P K + (PM) & lowest in T1: NPK (control). There were also significant effect of the treatments on N, P, K, S, Mg, Zn, B, and Mo contents and their uptake by the crop. In rice crop, the highest nutrients uptake by both grain and straw was obtained from T7 treatment and lowest from control. Secondary nutrients and micronutrients along with NPK feDownload