有机肥和无机肥与土壤调节剂配施对水稻产量的影响

目的]探索水稻生产中有机肥与化肥配合施用及土壤调节剂对水稻产量的影响。方法]设置施用不同类型的有机肥、无机肥处理,并设施用土壤调节剂和不施用处理,研究其对水稻产量的影响。结果]有机肥能促进水稻分蘖,但肥效较慢,水稻前期生长不及单施化肥,而后期明显强于对照。随着施用有机肥比例的增加,水稻产量逐渐增加,其中处理复混肥75.0 kg/hm2＋磷铵22.5 kg/hm2＋干稻草4 000.0 kg/hm2的平均产量最高,达到8 724.30 kg/hm2,比对照增产6.7%。施用土壤调节剂后有利于增产,平均产量水平达8 440.05 kg/hm2。结论]有机肥和土壤调节剂能促进水稻的生长发育,使其分蘖增多,增产效果明显。施用复混肥75.0 kg/hm2,磷铵22.5 kg/hm2,干稻草4 000.0 kg/hm2并施用土壤调节剂时产量最高,平均单产达8 791.95 kg/hm2。

Effect of the Integrated Application of the Organic Fertilizer, Inorganic Fertilizer and Soil Regulator on Rice Yield

Objective] The impact of the integrated application of organic fertilizer and chemical fertilizer,the application of soil regulator on rice yield was experimented.Method] The different treatments including application of different types of organic fertilizer or inorganic fertilizer,and the application of soil regulator or not were designed in the experiment.Results] The organic fertilizer can promote rice tillering and its fertilizer efficiency was slowly released,which treating efficiency in the early growing period of rice was not better than that of chemical fertilizer,however,in the late growing period of rice,significantly better than that of chemical fertilizer.The rice average yield was gradually increased with the increment the proportion of organic fertilizer application,and the treatment of compound fertilizer of 75.0 kg/hm2 + AP of 22.5 kg/hm2 + dried rice straw of 4 000.0 kg/hm2 could promote the formation of the highest rice average yield of 8 724.30 kg/hm2,which was 6.7% higher than that of CK.The application of soil regulator was beneficial to rice yield-increasing and the average rice yield was up to 8 440.05 kg/hm2.Conclusion] The organic fertilizer and soil regulator can promote rice growth and development for many more tillers and obvious yield-increasing.The integrated application of compound fertilizer of 75.0 kg/hm2 + AP of 22.5 kg/hm2 + dried rice straw of 4 000.0 kg/hm2 and soil regulator made the rice yield being the maximum one and the average yield was up to 8 791.95 kg/hm2.