标题：Effect of phosphorus and sulphur fertilization on growth, yield, nutrient uptake, their recovery and use efficiency by pigeonpea [Cajanus cajan (L.) Millsp.] genotypes
期刊名称：Asian Journal of Biological and Life Sciences
印刷版ISSN：2278-747X
电子版ISSN：2278-5957
出版年度：2014
卷号：3
页码：70-76
出版社：Pbspublishing
摘要：Field experiment was conducted during kharif season of 2010, 2011 and 2012 with three pigeonpea genotypes (UPAS 120, Pusa 992 and Pusa 855) four levels of P (0, 30, 60 and 90 kg P2O5/ha) and three levels of S (0, 20 and 40 kg S/ha) in Split-Split Plot Design under three replications. Pusa 855 found significantly superior to other genotypes and produced 16.71 and 20.14% higher seed yield over UPAS 120 and Pusa 992, respectively. 90 kg P2O5/ha resulted 46.78% higher seed yield over no phosphorus. However, application of 40 kg sulphur resulted, a yield gain of 21.34% over no sulphur. Pusa 855 with 90 kg P2O5+ 40 kg S/ha, had 8.55 and 11.01 % higher P and S uptake than UPAS 120, respectively. Phosphorus recovery and P use efficiency decreased with increasing P but increased with increasing sulphur. Highest P recovery (12.84 %) under Pusa 855 was with 30 kg P2O5 +40 kg S/ha. Whereas, maximum S recovery with Pusa 992 (23.65 %) was under 90 kg P2O5+ 20 kg S/ha. Highest P use efficiency (14.3 kg/kg P applied) was recorded under UPAS 120 at 30 kg P2O5 + 40 kg S/ha. Analogously, highest S use efficiency with Pusa 855 (52.30 kg/kg S applied) under 90 kg P2O5 +20 kg S/ha. Pusa 855 ( 39391) and UPAS 120( 30199) gave maximum net return with 90 kg P2O5 + 40 kg S/ha whereas, Pusa 992 gave its maximum net return ( 29265) with 60 kg P2O5 + 40 kg S/ha
