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首页> 外文期刊>Journal of Plant Nutrition >Growth, radiation use efficiency and grain yield of wheat as influenced by nitrogen, tillage, and crop residue management
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Growth, radiation use efficiency and grain yield of wheat as influenced by nitrogen, tillage, and crop residue management

机译：经氮，耕作和作物残留管理的影响，辐射利用小麦的辐射利用效率和粮食产量

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摘要

Soil organic carbon (SOC) sequestration is one of the major agronomic measures to mitigate green house gas emission, enhance food security, and improve agriculture sustainability. The study, therefore, aimed to evaluate crop growth (CG) and radiation use efficiency in spring wheat (Triticum aestivum L.) treated soil with residue type (RT), that is, cowpea (Vigna unguiculata) as legume (LR), maize (Zea mays L.) as cereal (CR) and no residue (NR) treatment applied (5 t ha(-1)) on dry matter basis. The CR was subsequently incorporated with tillage depths (TD), that is, deep (DT = 35 cm) and shallow (ST = 15 cm) as main plot treatments. The N was applied in two splits starting from 0 to 160 kg ha(-1) as sub plot treatments. Experiment was conducted in two CG seasons 2009-11 at Agronomy Research Farm, the University of Agriculture Peshawar, Pakistan. Results showed the highest CG and RUE with LR incorporated than CR and/or NR with DT. Increasing N-rate resulted an increase in CG, RUE and biomass of wheat. Residue of LR or CR deeply incorporate into the soil has resulted healthy traits (i.e., tillers- and spikes number), which resulted higher biomass. Nitrogen applied 120 kg ha(-1) resulted in higher CG, RUE and grain yield for treatment LR, followed by CR and the lowest for the NR. Crop of second year showed higher grain yield, which was due to healthy traits including better CG and RUE. The study suggests that CR of LR or CR nature incorporated deep into the soil can optimize crop N-fertilizer demand for optimum production, which protects environment from the excessive use of N application.
机译：土壤有机碳（SOC）封存是减轻绿色房屋气体排放，增强粮食安全性，提高农业可持续性的主要农艺措施之一。因此，研究旨在评估春小麦（Triticum Aestivum L.）处理土壤中的作物生长（CG）和辐射使用效率，其残留物（RT），即豇豆（Vigna Unguiculata）作为豆类（LR），玉米（ZEA Mays L.）作为谷物（Cr），没有残留物（NR）处理（5吨（-1））在干物质上施加（5吨（-1））。随后将Cr掺入耕作深度（Td），即深（dt = 35cm）和浅（st = 15cm）作为主要曲线处理。在从0到160kg ha（-1）开始的两个分裂中施加n作为子曲线地处理。在巴基斯坦农业大学农业研究农场2009 - 11年度在2009-11中进行了实验。结果表明，与CR和/或NR的LR具有最高的CG和RUE，具有DT。增加N率导致小麦的CG，Rue和Biomass增加。 LR或Cr的残留物深入掺入土壤中导致了健康的性状（即分蘖和尖刺数），导致生物质更高。氮气施加120kg ha（-1）导致治疗Lr的较高Cg，rue和籽粒产率，然后是Cr和Nr最低的。第二年的作物表现出更高的谷物产量，这是由于健康的特质，包括更好的CG和RUE。该研究表明，掺入土壤中的LR或Cr性质的Cr可以优化作物N-肥料对最佳生产的需求，这保护环境免受N应用的过度使用。

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