水田土壤有机质还田试验研究

在常规施化肥基础上对稻秸及不同用量还田、稻草造肥及不同用量还田、高茬还田进行试验研究,结果表明:处理区产量均高于对照,处理4的产量最高,为568.2 kg/667 m2,处理3的产量次之,为550.7 kg/667 m2。处理4的成本增加51元/667 m2,增收70.5元/667 m2,处理3的成本增加30元/667 m2,增收60元/667 m2;

Study on Returning Organic Matter to Paddy Field

Based on conventional chemical fertilizer application,an experiment of returning different amounts of straw to the field,returning different amounts of straw-made fertilizer to the field and returning high stubble to the field was conducted and the results showed that the yields of all treatments were higher than that of control.The yields of treatment four and three were 568.2 kg/667 m2 and 550.7 kg/667 m2.The costs of treatment four and three were 51 yuan/667 m2 and 30 yuan/667 m2 and the benefits of treatment four and three were increased by 70.5 yuan/667 m2 and 60 yuan/ 667 m2.