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首页> 外文期刊>International Scholarly Research Notices >Residual Nitrogen Contributions from Grain Legumes to the Growth and Development of Succeeding Maize Crop
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Residual Nitrogen Contributions from Grain Legumes to the Growth and Development of Succeeding Maize Crop

机译：豆类作物对后续玉米作物生长发育的残留氮贡献

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Field experiment was conducted at the Institute for Agricultural Research Farm at Samaru, Nigeria in 2008 and 2009 rainy seasons to investigate the residual nitrogen contributions by four legume crops (soyabean, cowpea, lablab, and groundnut) to the growth and development of succeeding maize given four levels of nitrogen fertilizer (0, 40, 80, and 120 kg N ha−1). In 2008, the treatments consisted of four legumes, maize and a fallow period. The six treatments were laid out using randomized complete block design replicated four times. In 2009, maize crop was planted on the previous crops’ plots and fallow. The experimental design used was split-plot with previous legumes, maize, or fallow as main plots, and the four nitrogen fertilizer treatments as subplots. Results obtained showed that nitrogen availability in the top soils of the previous legumes and fallow compared with that of maize plot was increased by 250, 200, 170, 107 and 157% after lablab, groundnut, cowpea, soyabean and fallow, respectively. Maize grown on previous lablab plot significantly recorded higher growth characters compared with maize following other legumes and fallow. Growth of maize was highest with the application of lower rates of nitrogen after lablab and groundnut compared with maize after maize.
机译：在2008年和2009年雨季期间，在尼日利亚萨马鲁的农业研究所农场进行了田间试验，以调查四种豆类作物（大豆，cow豆，扁豆和花生）对后续玉米生长发育的残留氮贡献。四个水平的氮肥（0、40、80和120 kg N ha-1）。在2008年，处理包括四个豆科植物，玉米和一个休耕期。使用重复四次的随机完全区组设计规划了六种治疗方法。 2009年，玉米作物被种植在先前作物的田地和休耕地上。使用的实验设计是将以前的豆科植物，玉米或休耕地作为主要地块，将四个氮肥处理作为下地块的地块。结果表明，与玉米田相比，豆科植物，花生，cow豆，大豆和休耕前豆科植物和休耕地表层土壤的氮素利用率分别比玉米田增加了250％，200％，170％，107％和157％。与其他豆科植物和休耕玉米相比，在以前的实验室地块上种植的玉米明显表现出更高的生长特性。与施用玉米后的玉米相比，使用白麦和花生后施用较低的氮肥，玉米的生长最高。

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