施用抗旱保水剂对棉花产量与水分利用效率的影响

【目的】分析应用抗旱节水剂对棉花产量及水分利用效率的影响,为新疆农业抗旱节水剂的应用和推广提供依据。【方法】通过不同用量的保水剂、抗旱剂两种抗旱节水剂在棉花种植上的田间试验,分析棉花产量、单铃重以及土壤水分利用效率的变化情况。【结果】抗旱剂与保水剂能够显著增加棉花产量,增产幅度为2.55%~29.71%;提高棉花对土壤水分的利用效率,提高幅度为2.1%~29.8%;抗旱剂显著提高棉花单铃重,保水剂对棉花单铃重基本无显著影响;总体而言,抗旱剂对棉花生产的作用优于保水剂;并且施用量和土壤水分状况对抗旱剂与保水剂的应用效果有一定影响。【结论】抗旱节水剂可以用于棉花生产。

Effects of Drought-resistant Agents(DRA) and Super Absorbent Polymers (SAP) on the Yield and Water Use Efficiency of Cotton

【Objective】 The effects of droughtresistant agents(DRA) and super absorbent polymers(SAP) on yield and the water use efficiency of cotton were studied in order to provide basis for application and promotion of water saving agents in Xinjiang.【Method】 The field experiments of different amount of DRA and SAP on cotton were carried out and changes of cotton yield,boll weight,and soil water use efficiency were analyzed.【Result】 The two drought resisting and water saving agents could significantly increase the cotton yield by 2.55%-29.71%,and improve the water use efficiency by 2.1%-29.8%;and using DRA enhanced cotton boll weight obviously but water saving agents couldn't;Overall,DRA is superior to SAP for helping the cotton growth;The application quantity and soil moisture have a certain influence on effects of DRA and SAP.【Conclusion】 DRA and SAP can be used in agricultural production of cotton.