Effect of Organic Fertilizers Replacing Some Chemical Fertilizers on Soil Physicochemical Properties and Economic Benefits of Greenhouse Cabbage
[Objective]In order to scientifically guide the application of organic fertilizers in the production of greenhouse vegetable,while reducing the unreasonable application of chemical fertilizers,and achieving the goal of reducing chemical fertilizer dosage and increasing efficiency and improving the quality of cultivated land.[Method]In this study,greenhouse cabbage was used as the experimental object and four treatments were set up,which were 100%conventional fertilization(CK,525.0 kg/ha compound fertilizer),and other treats were chemical fertilizers reduced by 10%,20%and 30%and 7 500 kg/ha commercial organic fertilizer.The effect of organic fertilizers instead of some chemical fertilizer on soil physicochemical properties,agronomic traits and yield of greenhouse cabbage,and economic benefit were investigated.[Result]The results showed that,Compared with the conventional application of 100%(CK),the soil pH of all treatments were increased by 1.5%～2.9%,the content of soil organic matter was significantly increased by 22.5%～32.6%,and the content of alkaline hydrolyzed nitrogen,available phosphorus and available potassium in the soil were also promoted.In one production season,the yield of greenhouse cabbage was increased by 3 364.6～3 822.9 kg/ha,and the increase range was 10.92%～12.41%.The benefit analysis showed that the net profit of the net income of all treatments were 2 465.4～3 618.3 yuan/ha which was 4.00%～5.29%higher than that of the CK.[Conclusion]In summary,it could achieve a stable and significant increase in greenhouse cabbage yield,with the highest economic benefits by increasing the application of commercial organic fertilizer by 7 500 kg/ha and reducing chemical fertilizer by 20%.Simultaneously,the soil pH and organic matter content were increased,and the physical and chemical properties of the facility soil were improved while maintaining and increasing yield and improving quality and efficiency of the facility cabbage.
Greenhouse cabbageOrganic fertilizer substitutionFertilizer reduction and efficiency improvementYieldSoil physicochemical properties
万方数据
维普
