Effects of Different Fertilization Patterns on Soil Quality and Yield of Dryland Maize
Different fertilization patterns were conducted to investigate the effects of different fertilization patterns on the main agronomic traits,soil water content,soil nutrientsand yield of dryland maize,due to weak soil fertility in cultivated land in mountainous areas of southern Ningxia,low farmland productivity,and low water use efficiency.The results showed that the water consumption of 0～40 cm soil was the lowest when the conventional fertilizer was reduced by 1/3 and organic fertilizer was applied at 50 kg·hm-2.The water consumption of deep soil was the highest when organic fertilizer was applied and conventional fertilizer was reduced by 1/2 and organic fertilizer was applied at 50 kg·hm-2.The soil organic matter was significantly higher in conventional fertilizer reduction by 1/3 and organic fertilizer application of 50 kg·hm-2 than that in other fertilization patterns.The average contents of total nitrogen,total phosphorusand total potassium in soil were higher in conventional fertilizer reduction by 1/3 and organic fertilizer application of 50 kg·hm-2 and conventional fertilizer reduction by 1/2 and organic fertilizer application of 50 kg·hm-2 than that in other treatments.The fertilization pattern of reducing N and applying organic fertilizer can effectively improve soil nutrients.The fertilization pattern of applying organic fertilizer and conventional fertilizer reduction by 1/2 and organic fertilizer application of 50 kg·hm-2 can improve crop yield to a certain extent.
NETL
NSTL
万方数据
维普
