Effect of Balanced Application of Potash Fertilizer on the Yield of Rice Yongyou 15 and Soil Nutrient Content  

作　　者：Xiaoxia LIU Zhe ZHANG Guangfeng WANG Lingli LU Junjun WANG Yiding CHEN 

机构地区：[1]Zhejiang Agricultural Technology Extension Center [2]Soil and Fertilizer Station of Lanxi Municipal Bureau of Agriculture [3]Zhejiang Zhenong Agricultural Science and Technology Co.,Ltd. [4]Zhejiang AMP International Co.,Ltd.

出　　处：《Asian Agricultural Research》2017年第3期93-95,105,共4页亚洲农业研究（英文）

基　　金：Supported by Open Fund of Key Laboratory of Zhejiang Subtropical Soil and Plant Nutrition;Zhejiang"SanNongLiuFang"Scientific and Technological Cooperation Project in 2016

摘　　要：By the field experiment,we set up the treatments of non-application of potash fertilizer,conventional fertilization,balanced fertilization and halved application of potash fertilizer,and studied the effect of different treatments on rice yield and soil nutrient content. The results showed that compared with non-application of potash fertilizer,conventional fertilization and balanced fertilization significantly increased the spike length,thousand kernel weight,yield and total potassium content of the stalk,as well as soil organic matter,total nitrogen and available phosphorus content; compared with conventional fertilization,the balanced fertilization did not significantly increase the rice growth and yield,but effectively increased rice grain total nitrogen,stalk total nitrogen and total phosphorus content,as well as soil available phosphorus and available potassium content. It could be found that potash fertilizer played a certain role in increasing rice yield and soil nutrient content,and the balanced fertilization had the most significant effect.By the field experiment,we set up the treatments of non-application of potash fertilizer,conventional fertilization,balanced fertilization and halved application of potash fertilizer,and studied the effect of different treatments on rice yield and soil nutrient content. The results showed that compared with non-application of potash fertilizer,conventional fertilization and balanced fertilization significantly increased the spike length,thousand kernel weight,yield and total potassium content of the stalk,as well as soil organic matter,total nitrogen and available phosphorus content; compared with conventional fertilization,the balanced fertilization did not significantly increase the rice growth and yield,but effectively increased rice grain total nitrogen,stalk total nitrogen and total phosphorus content,as well as soil available phosphorus and available potassium content. It could be found that potash fertilizer played a certain role in increasing rice yield and soil nutrient content,and the balanced fertilization had the most significant effect.

关 键 词：Balanced fertilization Potash fertilizer YIELD RICE NUTRIENTS 

分 类 号：S158[农业科学—土壤学]