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首页> 外文期刊>Indian Journal of Ecology >Effect of Irrigation and Nitrogen Management on Available Nutrients and Nitrogen Balance in Potato-Maize Cropping System
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Effect of Irrigation and Nitrogen Management on Available Nutrients and Nitrogen Balance in Potato-Maize Cropping System

机译：灌溉和施氮对马铃薯玉米种植系统中有效养分和氮平衡的影响

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摘要

Afield experiment was conducted during rabiand summer season (October-July) of 2007-08 and 2008-09 at Research Farm of the Division of Agronomy, Indian Agricultural Research Institute, New Delhi to evaluate the effect of irrigation and nitrogen management on available nutrients in soil in potato - maize cropping system. The biological yield was significantly higher with conventional furrow irrigation as compared with alternate furrow irrigation in rotation. Among the irrigation regimes, irrigation at60 mm CPE recorded significantly the highest biological yield over irrigation at 80 mm and 100 mm CPE. The effect of N management on biological yield were significantly the highest with the application of 120 kg N (urea) + 30 kg N/ha by FYM and it was at par with 150 kg N/ha by urea. Residual effect of irrigation methods and regimes applied to potato on biological yield of maize was not significant. The significant residual effect of 120 kg N (urea) + 30 kg N/ha by FYM applied to potato was exhibited on biological yield of maize and it were at par with 150 kg N/ha by urea. Alternate furrow irrigation in rotation recorded significantly higher available N, P and K in the soil over conventional furrow irrigation. Irrigation at 100 mm CPE recorded significantly the highest available N, P and K in the soil. An application of 120 kg N by urea + 30 kg N/ha by FYM brought considerable improvement the available N, P and K in the soil over other N levels. Crop sequence of potato- maize has positive impact on soil nitrogen status.
机译：在新德里印度农业研究所农学系研究农场的2007-08和2008-09夏季夏季（10月至7月）进行了田间试验，以评估灌溉和氮素管理对玉米中有效养分的影响。马铃薯-玉米种植系统中的土壤。与轮作交替沟灌相比，常规沟灌的生物产量明显更高。在灌溉方式中，与在80 mm和100 mm CPE灌溉相比，在60 mm CPE灌溉下记录的生物产量最高。氮肥管理对生物产量的影响最高，FYM施肥为120 kg N（尿素）+ 30 kg N / ha，尿素与150 kg N / ha相当。马铃薯灌溉方式和灌溉方式对玉米生物产量的残留影响不显着。 FYM对马铃薯施加120 kg N（尿素）+ 30 kg N / ha的显着残余效应对玉米的生物产量表现出显着效果，尿素与150 kg N / ha相当。与常规的沟灌相比，轮作的轮沟灌溉在土壤中的有效氮，磷和钾含量显着更高。 100 mm CPE的灌溉显着记录了土壤中最高的有效氮，磷和钾。尿素施用120千克氮+ FYM施用30千克氮/公顷比其他氮水平显着改善了土壤中的有效氮，磷和钾。马铃薯玉米的作物种植顺序对土壤氮素状况具有积极影响。

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