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首页> 外文期刊>Research Journal of Fisheries and Hydrobiology >Effect of Zn foliar application on yield and yield components of rice (Oryza sativa L.) under flooded condition
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Effect of Zn foliar application on yield and yield components of rice (Oryza sativa L.) under flooded condition

机译：淹水条件下叶面施用锌对水稻产量和产量构成的影响

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摘要

In order to investigating zinc (Zn) foliar application in different developmental stages a factorial experiment was performed based on randomized complete block design (RCBD) with four replications in Mahmoud Abad of Mazandaran Province in 2012. The first factor was included 5 different concentrations of Zn fertilizer (0, 0.48, 0.96, 1.44, 1.92 g. L-1), and the second factor was different times of its application (mid tillering and booting) . Results showed that the increasing Zn concentration in foliar application, increased yield and yield components of rice significantly and the maximum yield of the seed (11216.5 kg. ha-1) was observed in concentration of 1.92 g.L-1. Whereof the negative and significant correlation(r= - 0.63**) of empty seed per ear with the grain yield, the increase of yield in the said treatment may be related to as much as 41.49 percent decrease in number of empty seed per ear. Also, the time of Zn foliar application was significantly affected all measured characteristics of rice such that The highest levels of rice yield and yield components were observed when Zn applied at Booting treatment. It seems that increasing the speed of absorbing Zn in the said stage and improve the efficiency of applying other nutrition such as azote has important role in increasing yield and yield component of rice under flooded condition. However reciprocal effect of investigating factors on yield and yield component become non-significant.
机译：为了研究锌在不同发育阶段的叶面施用，2012年在马赞达兰省马哈茂德·阿巴德进行了基于随机完全区组设计（RCBD）的重复试验，共进行了四次重复试验。第一个因素包括5种不同浓度的锌肥料（0、0.48、0.96、1.44、1.92克L-1），第二个因素是施用时间不同（分till和中耕）。结果表明，叶面施用锌的浓度增加，水稻的产量和产量构成要素显着增加，在1.92 g.L-1的浓度下，种子的最大产量（11216.5 kg。ha-1）最高。其中每穗空籽与籽粒产量呈负相关和显着相关性（r =-0.63 **），在上述处理中单穗空籽数量的减少可能高达41.49％。而且，施用锌叶面的时间显着影响了水稻的所有测得特性，因此在孕穗期施用锌时，观察到最高水平的水稻产量和产量构成要素。在该阶段，似乎增加了锌的吸收速度并提高了施用其他营养物质（如偶氮酸盐）的效率，对提高淹水条件下水稻的产量和产量构成具有重要作用。然而，调查因素对产量和产量构成的相互影响变得不显着。

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