Effects of different organic fertilizers on soil and walnut fruit quality
In order to explore the suitable organic fertilizers for Liaoning No.1 walnut,three types of organic fertilizers,including semi-coke fertilizer,chicken manure and biological bacterial fertilizer,were used for ferti-lization treatments on 10-year Liaoning No.1 walnut trees in Zanhuang County,Hebei Province to test the effects of different organic fertilizers on soil,walnut yield and quality.The results showed that the application of biological bacterial fertilizer(2.5 kg per plant)significantly increased the flavonoid content in walnut ker-nels.Chicken manure(40 kg per plant)can significantly increase the content of Fe and Zn in kernels,as well as the content of available phosphorus and potassium in soil.The application 5.0 kg per plant of semi-coke fer-tilizer can significantly increase the content of kernel polyphenols and soil organic matter,and 10.0 kg per plant can significantly increase the content of transverse diameter of green fruit,single fruit weight,vertical di-ameter,transverse diameter,lateral diameter of dry fruit,contents of fat,K,Ca,Cu in kernels and the con-tent of soil total phosphorus.The application of 10 kg per plant semi-coke fertilizer had a significant impact on walnut quality.However,the economic benefit of 5.0 kg per plant semi-coke fertilizer application was the highest.
万方数据
维普
