Introduction And Selection Of Cultivars And Cultivation Techniques For High Quality And Yield Of Flat Peach In Fukang City

In this research,flat peach in gardens of Chengguan Town and Jiuyun Street Town in Fukang City was selected as the experimental material.Through the introduction and selection and the efficient fertilization,this research carried on tests including CO₂ gas fertilizer effect,powdery mildew control,insect sex attractant application,and effect contrast of different covering methods for flat peach living through the winter,and adopted techniques like reasonable planting,branch pruning,flowers and fruits protecting and pest and disease resistance,finally screening out the flat peach cultivars suitable for cultivating in Fukang City,proposing the high quality and efficient cultivation techniques,and establishin the large–scale demonstration production base,which provides technical support for the development of characteristic trees and fruits in Fukang City where the dominant characteristic fruits were flat peaches.The results showed that:1.After one year's introducing and cultivating test,four flat peach cultivars were found to be able to maintain normal growth in most areas of Fukang City,and American red flat peach and Yingreer big flat peach could be extensively planted for the good quality and the strong resistance to cold,drought,hot and some common disease and pest.2.Based on the utilization of agricultural cultivation techniques including the reasonable soil and water management,the appropriate load control,the creeping branch reshaping and the non-soil covering overwinter protection,the soil improvement and fertilization technology in line with green food production were summed up;and it suggested that the flat peach trees should be sprayed at the dormancy stage,specifically,the trees should be spray 3–5 Be of lime–sulfur one time after the leaves dropping in autumn and before the buds germinating in spring,and white agent should be brushed on the trunks of flat peach trees,which could improve the comprehensive resistance abilities of trees,cut down the pathogens affecting the growth of trees in winter,and reduce the incidence of pests and diseases.3.According to different fertility conditions in the flat peach greenhouse of demonstration area,per acre of land needed 22.8²9.9 kg of urea,11.9²2.9 kg of diammonium sulfate and 13.5²7.5 kg of potassium sulfate after the application of efficient organic fertilizers.Then,the types of fertilizers,the amount and time of fertilization,and the corresponding fertilization technology were summarized and employed in green fruit production of flat peach in the greenhouse of demonstration area.Meanwhile,it turned out that organic fertilizers should be applied with phosphate fertilizer after the fruit harvest or in autumn,and the additional fertilizers should be applied at the fruit setting stage and fruit enlarging period,and it was mainly nitrogen with a small amount of phosphorus and potassium at the fruit setting stage while it was mainly nitrogen and potassium with a small amount of phosphorus at the fruit enlarging stage.4.Increasing the amount of CO₂ gas fertilizer in the fruit development period could significantly increase the CO₂ concentration of the whole day in the greenhouse,thus strengthening the photosynthesis of flat peach and accelerating the net photosynthetic rate to improve the yield and quality of flat peach.