水稻-小麦种植系统中水稻和小麦的根系参数和水分生产率受富集堆肥和作物种植方法的影响

IF 4.8 Q1 AGRICULTURE, MULTIDISCIPLINARY Journal of Agriculture and Food Research Pub Date : 2024-07-25 DOI:10.1016/j.jafr.2024.101317
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引用次数: 0

摘要

全世界的粮食安全在很大程度上依赖于水稻-小麦种植序列(RWCS),因此,2018-19年和2019-20年期间在新德里的ICAR-IARI开展了一项田间研究,以确定各种富集有机源和作物种植方法对水稻根系参数、水分生产率和产量的影响,其对后茬小麦作物的结转效应以及系统的总体效率。研究采用了分小区设计,包括两个主小区处理,即好氧水稻(AR)和常规移栽水稻(CT),以及五个子小区处理,即T1:对照(不施肥);T2:100% RDF(100% 使用无机肥);T3:50% 磷肥使用富磷堆肥,50% 磷肥使用 DAP;T4:50% 氮肥使用富氮堆肥,50% 氮肥使用 DAP 和尿素;T5:100% 有机肥(100% 使用富氮堆肥和富磷堆肥)。在水稻之后,所有地块都在统一管理下种植小麦。在各种营养源中,T4 对根系活动、系统经济水分生产率和系统水分生产率的影响大于其他处理。在灌溉条件下,结合施用肥料和无机肥料,可以推荐使用 CT 水稻。不过,在可用水量较少的雨水灌溉条件下,也可以通过将富集堆肥和无机肥结合起来生产好氧水稻。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Root parameters and water productivity of rice and wheat in a rice‒wheat cropping system as influenced by enriched compost and crop establishment methods

Food security worldwide is largely dependent on the rice–wheat cropping sequence (RWCS) Hence, a field study was carried out during 2018–19 and 2019–20 at ICAR-IARI, New Delhi, to determine the effect of various enriched organic sources and crop establishment methods on the root parameters, water productivity and yield of rice, its carryover effect on the succeeding wheat crop and the overall efficiency of system. A split plot design was used which involved two main plot treatments, viz., aerobic rice (AR) and conventional transplanted (CT) rice, and five subplot treatments, viz., T1: control (without fertilizer), T2: 100 % RDF (100 % fertilization by using inorganic sources), T3: 50 % phosphorus was applied by using P-enriched compost + 50 % P was applied by using DAP, T4: 50 % N was applied by using N-enriched compost + 50 % nitrogen was applied by using DAP and urea, and T5: 100 % organic fertilizer was applied (100 % fertilization by using N-enriched compost and P-enriched compost). After rice, wheat was grown in all the plots under uniform management practices. Among the nutrient sources, T4 had greater effects on root activity, system economic water productivity and system water productivity than did the other treatments. CT rice can be recommended under irrigated conditions with the integration of enriched compost and inorganic fertilizers. However, under rainfed conditions with less available water, aerobic rice can also be produced by combining enriched compost and inorganic fertilizer.

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来源期刊
CiteScore
5.40
自引率
2.60%
发文量
193
审稿时长
69 days
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