不同有机肥替代化肥模式对柑橘果园土壤和柑橘产量的影响OA

Organic fertilizer is an important way to reduce the amount of chemical fertilizer and increase its efficiency.It can also effectively improve the soil quality caused by excessive use of chemical fertilizer in citrus cultivation.Based on the current situation of citrus cultivation in Shunchang county,Fujian province,this paper studied the effects of Organic fertilizer+formula fertilizer,Organic fertilizer+integration of water and fertilizer,Natural grass growing or planting green fertilizer+formula fertilizer on citrus,the effects of four technical models of Organic fertilizer+formula fertilizer+conditioner on the soil quality and yield of citrus orchards were studied.The results showed that organic fertilizer could improve soil pH,organic matter and the ability of holding cations in soil,which was beneficial to the improvement of soil fertility.Organic fertilizer instead of chemical fertilizer could increase the yield of citrus,and had a great effect on single fruit weight.Organic fertilizer+integration of water and fertilizer model was the best model to improve soil pH value.Natural grass growing or planting green fertilizer+formula fertilizer model was the best one to improve soil organic matter.