有机肥替代化肥对旱地小麦水氮利用及经济效益的影响

Effects of Organic Fertilizer Instead of Chemical Fertilizer on Water and Nitrogen Utilization and Economic Benefits of Dry Land Wheat

摘要: 以化肥处理为对照，设置4个有机肥替代化肥处理，研究小麦水氮利用效率和经济效益的差异，结果表明，有机肥替代化肥能够显著提高小麦产量、水分利用效率和氮肥生产力，增加净收益，有机肥施用量为30 000 kg/hm²，化肥减量15%处理下的小麦产量和水氮利用率最高，经济效益最好，因此，在小麦生产中，可用有机肥施用量为30 000 kg/hm²，替代化肥15%以提高小麦产量和经济效益。

Abstract: Taking chemical fertilizer treatment as the control, four organic fertilizer replacement chemical fertilizer treatments were set to study the differences of water and nitrogen use efficiency and economic benefits of wheat. The results showed that organic fertilizer replacement chemical fertilizer could significantly improve wheat yield, water use efficiency and nitrogen productivity, increase net income, the application amount of organic fertilizer was 30 000 kg/hm~2, and the wheat yield and water and nitrogen use efficiency were the highest and the economic benefits were the best under the treatment of 15% reduction of chemical fertilizer, In wheat production, the application amount of organic fertilizer can be 30 000 kg/hm~2 instead of chemical fertilizer by 15% to improve wheat yield and economic benefits.