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首页> 外文期刊>Pakistan journal of botany >Physiochemical traits, productivity and net return of wheat as affected by phosphorus and zinc requirements under arid climates
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Physiochemical traits, productivity and net return of wheat as affected by phosphorus and zinc requirements under arid climates

机译：干旱气候下磷，锌需求对小麦理化特性，生产力和净回报的影响

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摘要

The present study was aimed to optimize phosphorous and zinc doses to maximize wheat productivity under arid climate. Varying levels of phosphorus (P1= 60, P2 = 90 and P3= 120 kg ha-1) and zinc (Zn1= 10, Zn2= 15 and Zn3= 20 (kg ha-1) were applied in a silty loam to which wheat was grown till maturity. From the results of the present study, it was found that application of P had a positive influence on growth and grain yield of wheat. However, maximum growth and yield of wheat was recorded at 120 kg ha-1P2O5application. In contrast, Zn application did not change in growth or yield of wheat. However, combined application of P and Zn caused an increase in growth of wheat particularly in terms of Leaf Area Index (LAI). The highest grain-P content was recorded with application of 120 kg ha-1 P2O5and 15 kg ha-1Zn while highest straw-P was accumulated with comparatively lower rates of both (90 kg ha-1P2O5and 15 kg ha-1Zn). The highest grain and straw-Zn contents were recorded for 15 kg Zn ha-1with 60 and 90 kg ha-1P2O5, respectively. Combined application of 120 kg P2O5 and 20 kg ha-1Zn depicted the highest NFB and BCR during both cropping seasons.
机译：本研究旨在优化磷和锌的剂量，以在干旱气候下最大化小麦的生产力。在粉质壤土中施用不同含量的磷（P1 = 60，P2 = 90和P3 = 120 kg ha-1）和锌（Zn1 = 10，Zn2 = 15和Zn3 = 20（kg ha-1）从本研究的结果可以看出，施用磷肥对小麦的生长和籽粒产量都有积极影响，但在施用120 kg ha-1P2O5时，小麦的最大生长量和产量最高。相比之下，锌的施用不会改变小麦的生长或产量，但是，磷和锌的联合施用会增加小麦的生长，特别是在叶面积指数（LAI）方面，施用时记录到最高的籽粒磷含量120 kg ha-1 P2O5和15 kg ha-1Zn的累积量最高，而秸秆-P的积累率却相对较低（90 kg ha-1P2O5和15 kg ha-1Zn），最高的谷物和秸秆锌含量为15分别具有60和90 kg ha-1P2O5的Zn ha-1锌。120 kg P2O5和20 kg ha-1Zn的联合施用显示了最高的N在两个种植季节都进行FB和BCR。

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