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首页> 外文期刊>Journal of Natural Sciences Research >Enhancing Wheat Yield and Phosphorus use Efficiency through Foliar Application in Calcareous Soil
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Enhancing Wheat Yield and Phosphorus use Efficiency through Foliar Application in Calcareous Soil

机译：通过叶面施用石灰性土壤提高小麦的产量和磷的利用效率

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The experiment was conducted at Agricultural Research Farm of Khyber Pakhtunkhwa Agricultural University, Peshawar during 2011-12 to evaluate the effect of foliar P on growth, yield and P uptake by wheat crop, respectively.. Soil P was applied in the form of TSP while foliar P was applied in the form of KH2PO4 with maximum concentrations of 1% P equally applied in three split doses at tillering, boot and anthesis stage of wheat crop c.v. Atta Habib. The foliar application of P showed significant effect on grains spike-1, thousand grain weight, grain yield, biological yields and plant P and K and post harvest soil P. The grain yield increased from 2.12 to 2.60 t ha-1 with 2 kg foliar P ha-1 but further increases in P levels showed decreasing trend. Combination of soil and foliar application showed the supplemental effect in increasing the grain yield. Application of 20 kg soil + 2 kg foliar applied P ha-1 increased the grain yield from 2.57 t ha-1 to 2.92 t ha-1 showing increase of 13.67 and 37.73 % over alone soil applied control, respectively. The biological yield showed 12.94 % increase over control with 2.0 kg foliar P but further increases in P doses again failed to do so. The post harvest soil P, and plant [P] and [K] at both boot and anthesis stage improved with foliar application of P. The comparatively higher performance by 20 kg soil+2 kg foliar P ha-1 suggested that this could be the optimum level for wheat under the prevailing soil and climatic condition. However, such studies on diverse soil, crop and climatic condition should be conducted for confirmation of results and widespread recommendation. Keywords: Wheat, Yield Foliar spray of KH2PO4
机译：该实验于2011-12年在白沙瓦开伯尔-普赫图赫瓦农业大学的农业研究农场进行，以评估叶面磷对小麦作物生长，产量和磷吸收的影响。土壤磷以TSP的形式施用，而叶面磷以KH2PO4的形式施用，最大浓度为1％的磷在小麦分,、分boot和开花期的三个分次剂量中均等施用阿塔·哈比卜（Atta Habib）。叶面喷施磷肥对穗粒数-1，千粒重，籽粒产量，生物产量以及植物磷，钾和收获后土壤磷有显着影响。叶面含量为2 kg时，籽粒产量从2.12 t ha-1增加到2.60 t ha-1 P ha-1，但P水平的进一步增加显示下降趋势。土壤和叶面施用的组合显示出增加谷物产量的补充效果。施用20 kg土壤+ 2 kg叶面施用的P ha-1将谷物产量从2.57 t ha-1增加到2.92 t ha-1，分别比单独施用土壤的对照增加13.67％和37.73％。生物产量显示，与2.0 kg叶面磷相比，对照的增产幅度为12.94％，但磷剂量的进一步增加仍未能实现。叶面喷施磷改善了收获后土壤P以及苗期和花期的植物[P]和[K]。20 kg土壤+ 2 kg叶面P ha-1的相对较高的性能表明，这可能是由于P在主要土壤和气候条件下小麦的最佳水平。但是，应该对土壤，作物和气候条件进行各种研究，以证实结果并广泛推荐。关键词：小麦;产量KH2PO4的叶面喷雾

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