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首页> 外文期刊>Scientific reports. >Potassium Management for Improving Growth and Grain Yield of Maize (Zea mays L.) under Moisture Stress Condition
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Potassium Management for Improving Growth and Grain Yield of Maize (Zea mays L.) under Moisture Stress Condition

机译：在水分胁迫条件下提高玉米生长和籽粒产量的钾管理

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摘要

Potassium (K) fertilizer management is beneficial for improving growth, yield and yield components of field crops under moisture stress condition in semiarid climates. Field experiments were conducted to study the response of maize (Zea mays L., cv. Azam) to foliar and soil applied K during summer 2013 and 2014. The experiments were carried out at the Agronomy Research Farm of The University of Agriculture Peshawar, Northwest Pakistan under limited irrigation (moisture stress) condition. It was concluded from the results that application of foliar K at the rate of 1-3% and foliar Zn at the rate of 0.1-0.2% was more beneficial in terms of better growth, higher yield and yield components of maize under moisture stress condition. Early spray (vegetative stage) resulted in better growth and higher yield than late spray (reproductive stage). Soil K treated plots (rest) plots performed better than control (K not applied) in terms of improved growth, higher yield and yield components of maize crop. The results further demonstrated that increasing the rate of soil applied K up to 90?kg P ha(-1) in two equal splits (50% each at sowing and knee height) improve growth and maize productivity under semiarid climates.
机译：钾（K）肥料管理有利于改善半干旱气候水分胁迫条件下田间作物的生长，产量和产量组分。进行现场实验以研究2013年夏季玉米（Zea 5月L.，CV.Azam）对叶面和土壤的抗叶子和土壤的响应。该实验是在西北农业大学的农学研究场所进行的实验巴基斯坦在有限的灌溉（水分压力）条件下。从叶酸率施加1-3％和叶酸率的结果结束，在0.1-0.2％的速率下，在水分胁迫条件下玉米的更高产量和产量组分更有效。早期喷雾（营养阶段）导致更好的增长和更高的产量而不是晚期喷雾（繁殖阶段）。土壤K处理的图（休息）地块（静态）在提高的生长，更高产量和玉米作物产量组分方面比对照（k未施用）更好。结果进一步证明，在两个相等的分裂中增加土壤施用速率高达90μg（-1）（每次播种和膝关节高50％），提高半干旱下的生长和玉米生产率。

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