Study On Key Technology Of Trunk Transfusion And Drip Irrigation Of Walnut Tree

To explore the high-yield,high-efficiency of walnut’s planting mode.In this study,Walnut cv.Liaoning 1 as test material,The study is expanded on four experiments.In the first experiment,this test sets up three treatments,Pipeline trunk transfusion and drip irrigation with the integration of water and fertilizer pesticide treatment,Soil fertilization and pesticide spraying treatment and Conventional management.By compared with the indexes relate to leaves,new shoots,fruit,soil.In order to explore a high quality and high yield cultivation mode of walnut.In the second experiment,this test sets up Trunk transfusion and drip irrigation with four treatments of different concentrations of Paclobutrazol solution,Trunk transfusion and drip irrigation with water as a control. To selecte the effective concentration to slow down the nutrition growth of walnut tree,improve the fruit yield.In the third experiment,this test sets up Trunk transfusion and drip irrigation with several different concentrations of Ethrel and NAA mixed solution treatments,Trunk transfusion and drip irrigation with water as a control.To select the most appropriate concentration about promote the peel cracking.In the fourth experiment,this test sets up several different concentrations of sucrose or glucose solution treatments,Trunk transfusion and drip irrigation with water as a control.This experiment choose the effective sugar and concentration.Provided a reference for application of trunk transfusion and drip irrigation with concentrations of sucrose or glucose solution technology in Green cultivates of Walnut.The main conclusions are as follows:1. Pipeline trunk transfusion and drip irrigation with the integration of water and fertilizer pesticide technology can promote the growth and N,P,K content of leaves,Help the metabolism and photosynthesis of tree body,and accumulate nutrients to increase the growth of new shoots and trunk girth.2. Pipeline trunk transfusion and drip irrigation with the integration of water and fertilizer pesticide solution technology avoid the surface soil Mineral elements leaching because of broad inigation,Improve the N,P,K content of surface soil.Improve the efficiency of fertilizer utilization greatly,Provide adequate nutrients for tree growth,and fruit development,fruit kernel filling and provide a good water environment for the growth of walnut trees.3. Compared with soil and spraying treatment and conventional management,Pipeline trunk transfusion and drip irrigation with the integration of water and fertilizer pesticide technology greatly improved the yield and quality of walnut fruit,Yield per plant of Pipeline trunk transfusion and drip irrigation treatment is 4.5 kg,was 21.62% and 73.08% higher than the other two treatments.Pipeline trunk transfusion and drip irrigation with the integration of water and fertilizer pesticide technology has positive significance to achieve the goal of high yield and good quality walnut industry,Economic gains increased 88.2% than Conventional management,can be popularized in production.4. Walnut black fruit is result from hetauhei,nigrities artis,yellow peach grub and anthracnose,Hetauhei vertical and horizontal eat in walnut peel,The whole fruit get black after the damage department get black,then the green fruit into the "black fruit".Pipeline trunk transfusion and drip irrigation technology can efficient promote absorption and utilization of pesticide,The black fruit rate of Pipeline Trunk transfusion and drip irrigation with the integration of water and fertilizer pesticide solution treatment is 1.9%,was 88.76% and 91.55% lower than that in soil and spraying treatment and conventional management.5. Pipeline Trunk transfusion and drip irrigation with proper concentrations of Paclobutrazol solution improved the content of chlorophyll,slowdown the growth of leaves and shoots,increase the yield,The test suggestion that Trunk transfusion and drip irrigation with 10 L Paclobutrazol solution of 400 mg/L in the production on walnut tree.6. It makes walnut green husk cracking rate is 83.0% when Trunk transfusion and drip irrigation with 10 L mixed solution of 300 mg/L Ethrel and 600 mg/L NAA on 18 days before harvest the fruit..It makes walnut green husk cracking rate is 78.0% when Trunk transfusion and drip irrigation with 10 L mixed solution of 500 mg/L Ethrel and 1000 mg/L NAA on 6 days before harvest the fruit.The fallen leaves did not increase and has no effect on fruit quality and yield.7. Trunk transfusion and drip irrigation with proper concentrations of sucrose or glucose solution promote the growth of leaves and new shoots,improve leaf photosynthesis rate,increase fruit quality.It makes Fruit kernel rate increased 28.23% than control group,when Trunk transfusion and drip irrigation with 10 L Glucose solution of 400 mg/L.