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首页> 外文期刊>Pakistan Journal of Agricultural Sciences >RESPONSE OF MAIZE (Zea mays L.) TO DIFFERENT TILLAGE REGIMES AND NITROGEN TIMINGS UNDER SEMI-ARID IRRIGATED CONDITIONS
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RESPONSE OF MAIZE (Zea mays L.) TO DIFFERENT TILLAGE REGIMES AND NITROGEN TIMINGS UNDER SEMI-ARID IRRIGATED CONDITIONS

机译：在半干旱灌溉条件下玉米（ZEA 5月L.）对不同耕作制度和氮素时的反应

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摘要

Soil ploughing up to required depth and time of nitrogen application at different growth stages are important practices for enhancing crop yield. The effect of different tillage systems and nitrogen application at different growth stages on yield and yield components of hybrid maize was studied through 2-years field experiment. The experiments were laid out in RCBD with split plot arrangements and main plots were allocated to tillage treatments viz. (T-1: Conventional Tillage (2-Cultivation), T-2: Tillage with mould board plough + 2-Cultivation, T-3: Tillage with Chisel plough + 2-Cultivation) while subplots to nitrogen timings viz. (Whole at sowing (N-1), 1/2 at sowing + 1/2 at V-5 (5-leaf stage) (N-2), 1/2 at sowing + 1/2 at tasseling (N-3), 1/2 at V-5 + 1/2 at tasseling (N-4), 1/3 at sowing + 1/3 at V-5 + 1/3 at tasseling (N-5). The results indicated significant improvement of yield and yield components through tillage and split application of nitrogen. Plots ploughed to deeper layers with chisel plough resulted higher grains weight per cob (127.65 +/- 3.43; 134.45 +/- 3.66), 1000-grain weight (272.18 +/- 3.33; 306.40 +/- 3.08) and grain yield (6.30 +/- 0.11; 7.04 +/- 0.13) during 2008 and 2009, respectively. Nitrogen application in three splits i.e. 1/3 at sowing + 1/3 at V-5 + 1/3 at tasseling resulted increased grains weight per cob, 1000-grain weight and grain yield. Interactive effect of tillage and nitrogen treatments on maize gain yield found significant in 2008 while non-significant in 2009. Higher grain yield was recorded with chisel plough along with N application in three splits during both study years. From current study, it may be concluded that farmers should grow maize hybrids by cultivating the soil using chisel plough along with cultivator and applying nitrogen in three splits to obtain higher grain yield.
机译：在不同生长阶段犁过所需深度和氮应用时间的土壤是提高作物产量的重要实践。通过2年的田间实验，研究了不同耕作系统对不同生长阶段对不同生长阶段产量和产量组分的影响。实验在RCBD中布局，分裂绘图布置，并分配了主要地块，分配给耕作治疗。 （T-1：常规耕作（2栽培），T-2：耕作模具板犁+ 2-栽培，T-3：抗凿犁+ 2栽培的耕作），而氮素计时率为VIZ。 （在播种（n-1），在播种+ 1/2时播种（n-1），在播种的播种+ 1/2时播种+ 1/2，1/2（n-3 ），在旋转（n-4）的旋转（n-4），1/3时在v-5 + 1/3的v-5 + 1/3处的1/2，在旋转（n-5）。结果表明了重要通过耕作的产量和产量组分的改善和分裂施用。犁犁较深层面的曲线，导致粗玉米胶质重量较高（127.65 +/- 3.43; 134.45 +/- 3.66），1000粒重（272.18 + / - 3.33; 306.40 +/- 3.08）和谷物产量分别（6.30 +/- 0.11; 7.04 +/- 0.13），分别于2008年和2009年。氮施用在三个分裂中，即在播种+ 1/3时为1/3流苏的5 + 1/3导致每种玉米棒的晶粒重量增加，1000粒重量和籽粒产率。2008年2008年玉米增益产量的耕作和氮气治疗的互动效果，而2009年非显着性。记录更高的谷物产量凿子犁在三个分裂中与n施用在两项研究中卢比。从目前的研究来看，可能会得出结论，农民应通过使用凿子犁培养土壤以及培养工和在三个分裂中施加氮以获得更高的谷物产量来培养玉米杂种。

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