EFFECT OF INTEGRATED PLANT NUTRITION SYSTEM (IPNS) AND INITIAL SOIL FERTILITY ON YIELD AND NPK UPTAKE BY PEARL MILLET ON INCEPTISOL
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 55
Abstract
With a view to study the effect of initial soil fertility and Integrated plant Nutrition System (IPNS) on the yield of pearl millet (TNAU Cumbu Hybrid CO 9) on Vertic Ustropept of Tamil Nadu, field experiments were conducted during 2015-16 by following Inductive methodology (fertility gradient concept). Variations in soil fertility with reference to soil available N, P and K was established among the three fertility strips with the addition of fertilizers at graded levels and by growing fodder sorghum as gradient crop (first phase). The second phase viz., the test crop experiment with pearl millet, consisted of four levels each of fertilizer N, P2O5 and K2O and three levels of farm yard manure (FYM). The highest yield of 4079 kg ha-1 was recorded with 150:75:75 kg ha-1 of fertilizer N, P2O5 and K2O along with 12.5 t ha-1 of FYM in strip III with initial soil available NPK status of 218, 37, 392 kg ha-1 respectively. The grain yield as well as NPK uptake by pearl millet had increased with increase in initial soil fertility and with increase in the levels of fertiliser N, P2O5 and K2O and FYM
Authors and Affiliations
S. UDAYAKUMAR
Keywords
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