Tillage methods and mulch influences the productivity and water requirement of spring maize hence a field experiment was conducted at the National Maize Research Program, Rampur in spring seasons of 2011 and 2012 with the objectives to evaluate different tillage methods with and without mulch on water requirement and grain yield of spring maize. The experiment was laid out in two factors factorial randomized complete design with three replications. The treatments consisted of tillage methods (Permanent bed, Zero tillage and Conventional tillage) and mulch (with and without). Irrigation timing was fixed as knee high stage, tasseling stage and milking/dough stage. Data on number of plants, number of ears, thousand grain weight and grain yield were recorded and analysed using GenStat. Two years combined result showed that the effect of tillage methods and mulch significant influenced grain yield and water requirement of spring maize. The maize grain yield was the highest in permanent beds with mulch (4626 kg ha- 1) followed by zero tillage with mulch (3838 kg ha-1). Whereas total water applied calculated during the crop period were the highest in conventional tillage without mulch followed by conventional tillage with mulch. The permanent bed with mulch increased the yield and reduced the water requirement of spring maize in Chitwan.
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机译：耕作方法和地膜会影响春玉米的生产力和需水量，因此在2011年和2012年春季，在Rampur国家玉米研究计划中进行了田间试验，目的是评估有或没有地膜对水需求量和耕作方式的不同耕作方法。春玉米的籽粒产量。实验以两个因素进行因子随机完整设计，重复三个。处理包括耕种方法（永久性耕作，零耕种和常规耕种）和覆盖物（有或没有）。灌溉时间固定为膝盖高阶段，抽雄阶段和挤奶/面团阶段。使用GenStat记录并分析了植物数量，穗数，千粒重和谷物产量的数据。两年的综合结果表明，耕作方式和地膜覆盖的影响显着影响春玉米的籽粒产量和需水量。在有覆盖物（4626 kg ha-1）的永久性床中，玉米产量最高，其次是在有覆盖物的永久耕作（3838 kg ha-1）下。在农作物时期计算的总施用量在不覆盖地常规耕作中最高，其次是带覆盖地常规耕作。永久性地膜覆盖地带提高了奇旺（Chitwan）春玉米的产量并减少了需水量。
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