Effects of microbial fertilizer on the yield of Brassica rapa var.chinensis and soil fertility in greenhouse
The application effect of microbial fertilizer on Brassica rapa var.chinensis was studied under greenhouse cultivation.The results showed that increased application of organic fertilizer and organic fertilizer combined with agricultural microbial agents could promote plant growth,improve agronomic traits,increase biological yield and economic benefits of Brassica rapa var.chinensis,and also increase the contents of soil organic matter,hydrolyzed nitrogen,available phosphorus and available potassium.In comparison,increased application of bio-organic fertilizer had better effect on promoting growth and increasing yield of Brassica rapa var.chinensis.Compared with no application control,it increased leaf thickness by 16.3%,total leaf amount by 14.5%and plant height by 7.5%,and increased biological yield by 25.8%.In terms of comprehensive production benefits,organic fertilizer combined with agricultural microbial agents was better than bio-organic fertilizer,and its benefit increased by 9 524 yuan per kilogram compared with no application.
万方数据
维普
