Abstract:
In order to understand the current status of nutrient management in the peach orchard in Beidulehe village, Pinggu district, Beijing city, the method of randomly determining the survey samples was used to investigate the nutrient management status of the peach orchard of farmers, combined with the analysis of nutrient absorption characteristics of peach trees, to provide a scientific basis for the rational management of peach orchard nutrients.The results showed that in terms of nutrient input, the average input of N,P,and K was N 1 004.9 kg·hm
-2,P
2O
5 705 kg·hm
-2,K
2O 1 065 kg·hm
-2,which were 5.2 times, 9.2 times and 4.3 times the nutrient requirements of peach trees.In terms of fertilization structure,42.9% of the peach orchards of farmers only used chemical fertilizers throughout the year,ignoring the input of organic fertilizers.In the fertilization period,60% and 40%of the farmers choosed to apply the basal fertilizer in autumn and spring respectively.Only 5.7% of the farmers applied the basal fertilizer 3 times after the basal fertilizer,and the rest were less than3 times.It was recommended that the peach orchard should use chemical fertilizers and organic fertilizers to control the amount of nitrogen,phosphorus,and potassium fertilizers;apply basal fertilizers in autumn(September-November),and pay attention to the number of topdressing,so as to achieve the purpose of rational management of peach orchards.