Research Analysis Of The Fertilization Method Of Apple And Peach

Fruit cultivation has a long history in north China,and there are resourceful fruit.The climate was warm and suitable,and the rainfall was concentrated.The light resource was very adequate for the growth of deciduous fruit trees.Apple and peach take up about 70%of the fruit industry in north China.Soil is the basis of the growth of fruit trees,and it was the main origin of the essential nutrients and water source.The soil of the north orchard is a kind of zonal soil type formatted in temperate and warm temperate humid,semi-humid and arid and semiarid climates.According to the survey,organic matter and available P contents were rich,and the available N content was low in apple orchards.The nutrient content of orchard soil is not balanced in the main peach growing area,in addition to the available P content is rich,the other are below average.Apple is a pome fruit tree.Flower bud differentiation was proceeding in the first year,and blossom and yield fruit in the following year.Fertilization at different times often affects the growth,but also the flowering and flower bud differentiation.Peach's flower bud differentiation and flowering results were completed within two years.The previous year's nutritional status not only affects the level of peach production,but also having a direct impact on the flowering results the following year.Previous research showed that pure nitrogen was used 0.7-1.0 kg,and N:P2O5:K2O was 1:0.5:1 and 200 kg of high quality organic fertilizer was applied for every 100 kg of apples.0.3-0.6 kg pure nitrogen and the N:P2O5:K2O was 1:0.6:1,using 150-200 kg high-quality organic fertilizer as basal fertilizer in autumn for every 100 kg of peaches.According to the biological age of fruit trees,fruit maturation time,adjusting the fertilization method on the basis fertilization standards.The fertilizing amount was reduced for the young trees and early maturing varieties,while the fertilizing amount was up-regulated for the fruiting tree and late maturing varieties According to this formula,the yield and fruit quality of Fuji apple and Zhaohui peach were significantly improved.After formula fertilization,the increase of Fushi apple yield was 28.91%,and the content of soluble solids and soluble sugar in apple fruit were increased by 8.74%and 7.34%,respectively,while the content of main aroma components in apple fruit,Ethylene butyrate,baton rouge caproate and Butyl-2-methyl butyrate,increased by 54.23%,41.67%and 28.27%,respectively.The increase of Zhaohui peach yield was 9.44%,and the TSS/TA increased by 54.38%.In addition,the relative content of ester compounds was increased,reaching 55.73%,prompting the peach turn green note to fruity note,improving the sense of smell of peach fruit.