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首页> 外文期刊>Azarian Journal of Agriculture >Effects of foliar application of zinc sulfate at different phenological stages on yield formation and grain zinc content of bread wheat (cv. Kohdasht)
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Effects of foliar application of zinc sulfate at different phenological stages on yield formation and grain zinc content of bread wheat (cv. Kohdasht)

机译：不同物候阶段叶面喷施硫酸锌对面包小麦产量形成和籽粒锌含量的影响（cv。Kohdasht）

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摘要

Zinc (Zn) is an essential mineral nutrient for plant and human growth, and dietary Zn deficiency is a worldwide nutritional problem. Two-year field experiments were conducted during the 2013 and 2014 to evaluate the effects of foliar application of zinc sulfate at the developmental stages on agronomy traits and grain Zn content. The following foliar applications of Zn (0.44 g Zn/lit) at the phenological stages were used: (1) no Zn fertilizer addition (control), (2) stem elongation stage and (3) stemming and grain filling stages. The results showed that foliar Zn application at the stemming and grain filling stages was much more effective than foliar Zn application at the stem elongation stage on grain yield and its components of wheat. Foliar application at stemming and grain filling stages had no significant effect on the harvest index whereas significantly increased plant height. Zn concentration was not changed when plants were sprayed at early stem elongation while significantly increased grain yield and its components. In general, the most effective treatments to ameliorate Zn deficiency were foliar application at stemming and grain filling stages.
机译：锌（Zn）是植物和人类生长所必需的矿物质营养素，饮食中锌的缺乏是世界范围内的营养问题。在2013年和2014年进行了为期两年的田间试验，以评估在发育阶段叶面施用硫酸锌对农艺性状和籽粒锌含量的影响。在物候期使用以下叶面施用的锌（0.44 g锌/升）：（1）不添加锌肥（对照），（2）茎伸长期和（3）茎秆灌浆和籽粒填充期。结果表明，在茎部和籽粒灌浆期施用叶面锌比在茎伸长期施用叶面锌对小麦的籽粒产量及其成分更有效。在茎秆和籽粒灌浆阶段施用叶面肥对收获指数没有明显影响，而植株高度却明显增加。当在茎干伸长早期喷洒植物时，锌的浓度没有改变，同时显着提高了谷物的产量及其成分。通常，缓解锌缺乏症最有效的方法是在茎生和灌浆期叶面施用。

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