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Nitrogen management in maize + soybean intercropping system in semi-arid condition of Kandahar, Afghanistan

机译：阿富汗半干旱条件下玉米+大豆间作系统的氮气管理

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摘要

A field experiment on "Nitrogen management in maize + soybean intercropping system"was carried during the summer season of 2017 at Kandahar, Afghanistan. The experiment was laid out in a split plot design with three replications. The main plots consisted of different system of intercropping of maize and soybean and the subplot included the nitrogen management treatments. The growth parameters of maize like plant height, dry matter accumulation and leaf area index in maize + one row of soybean were higher in intercropping system over sole maize, but maize + one row of soybean recorded markedly higher dry matter/plant at 60, and 90 DAS compared to sole maize. Nitrogen application significantly influenced the plant height, dry matter/plant at all the growth stages of crop growth, except at 30 DAS. Maize yield attributes (cobs/plant, length of cob and number of gains/cob) significantly higher under that maize + one row of soybean than those recorded in sole maize. Also, N application, up to 80 kg ha~(-1) markedly increased girth of cob and the number of cobs per plant while the application of 120 kg N ha~(-1) brought about only marginal increase. However, highest 1000-grain was recorded in maize + two row of soybean. However, 1000-grain weight increased with increasing rates of N up to 120 kg ha~(-1). Maize grain yield increased under intercropping maize + one row of soybean significantly higher grain, stover and biological yield over sole maize. Application of N at increasing rates brought about a significant increase in grain yield of maize from control to 80 kg ha~(-1).
机译：2017年夏季，阿富汗坎大哈的夏季“玉米+大豆间作制度氮管理氮管理”现场试验。该实验在分裂绘图设计中奠定了三种复制。主图组成，由玉米和大豆的不同间隙系统组成，并且该子尺包括氮管理处理。在鞋底玉米的间作系统中，玉米+植物高度，干物质积累和叶面积指数的生长参数+一排大豆均较高，但玉米+一排大豆在60时记录了明显更高的干物质/植物， 90 DAS与鞋底玉米相比。除了30 das外，氮施用显着影响了作物生长的所有生长阶段的植物高度，干物质/植物。玉米产量属性（COB /植物，玉米棒的长度和玉米棒的数量）明显高于玉米+一排大豆，而不是唯一玉米记录的大豆。此外，N申请，高达80 kg ha〜（-1）显着增加了玉米棒子的周长和每株植物的玉米棒子的数量，而施加120kg n ha〜（-1）只达到边际增加。然而，在玉米+两排大豆中记录了最高1000粒谷物。然而，1000粒重量随着高达120kg Ha〜（-1）的增加而增加。玉米粮食产量在间作玉米+一排大豆明显较高，秸秆秸秆和生物产量较高。 n在增加速率下的施加量从对照到80kg ha〜（-1）的玉米籽粒产率显着增加。

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  • 来源
    《Annals of Agricultural Research》 |2019年第1期|共6页
  • 作者

    Mumtaz Baryal; S.S. Rathore; Mukhtar Ahmad Faiz; Kapila Shekhawat;

  • 作者单位

    Division of Agronomy Afghanistan National Agricultural Science &

    Technology University Kandahar Afghanistan and ICAR-Indian Agricultural Research Institute New Delhi 110 012;

    Division of Agronomy Afghanistan National Agricultural Science &

    Technology University Kandahar Afghanistan and ICAR-Indian Agricultural Research Institute New Delhi 110 012;

    Division of Agronomy Afghanistan National Agricultural Science &

    Technology University Kandahar Afghanistan and ICAR-Indian Agricultural Research Institute New Delhi 110 012;

    Division of Agronomy Afghanistan National Agricultural Science &

    Technology University Kandahar Afghanistan and ICAR-Indian Agricultural Research Institute New Delhi 110 012;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 农业科学;
  • 关键词

    Cropping system; grain yield; intercropping; maize; nitrogen levels; soybean.;

    机译：种植系统;谷物产量;间作;玉米;氮水平;大豆。;

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