Pay attention to the occurrence and control of pests and diseases. Pay special attention to brown spots. Use soft water to pass 4000 times tebuconazole 1000 to 1500 times (or 5000 times of propiconazole) with soft water. Use 1:2:200 Bordeaux mixture to prevent brown spots before they occur. Once brown spot disease occurs, use Nanoxin, Tebuconazole and Gaosheng as soon as possible, and spray more than twice in an interval of 7 to 10 days.
At the same time as using drugs to prevent and control, it is also necessary to spray the leaves with amino acid Philip to quickly enhance tree vigor and leaf function, and improve the disease resistance of fruit trees. Insects such as spider mites, cotton aphids, longhorn beetles and other pests should be based on the occurrence Pests should be appropriately controlled by pesticides. Focus on the prevention and control of spider mites and cotton aphids, using Chongqing No. 4 6000 times chlorpyrifos 1500 times.
Prevent the spread of rot disease. Remove old warped bark from tree trunks in the whole garden, apply 10~30 times Pude's solution to the trunk while it is sunny, add 1 vial of propiconazole (Goldenlux) to each bag of Pud's solution to promote rapid peeling off of the peeling layer and reduce decay Disease infestation and survival sites.
Increase the air permeability of orchard soil. When it rains and the ground is slightly dry, timely intertillage, spray the orchard ground to avoid deep plowing, and increase the orchard with organic fertilizer Mu Mei Tuli or Longfei Dasanyuan, Guojindao, etc., which can enhance soil permeability and increase soil oxygen content.
Nourish. Excessive rainfall can easily cause soil nutrient infiltration, and there will be a lack of nitrogen and potassium, and organic fertilizer should be added in time.
Enhance light transmittance of fruit trees. Excessive rain can easily cause disorder of the tree. The dense branches and long branches should be removed in time. The branches that bend upwards should be turned and hang down at the bends, and the branches should be staggered by pulling or hanging branches to open up the light space. Do everything possible to increase the light transmittance of fruit trees to about 30%.
Control shoot. For the non-stop growing branches, topping or removing the leaves can control the prolonged growth of the branches and promote the rejuvenation of the weak and prosperous branches. The control time of topping is shorter, and the effect of topping and removing leaves is obviously better than topping. Topping and removing leaves is to remove 3-5 leaves from the tops of the branches while leaving the petioles.
Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phoneA measuring instrument for quantitatively evaluating the cylindricity of a cylinder by measuring the actual contour of the cylinder using the precise rotation centerline as the reference standard and the precise linear motion guide rail as the reference standard. It can be used to measure cylindrical shape errors (roundness, cylindricity, straightness, and flatness), position errors (coaxiality and verticality), etc.
The cylindrical Roundness Tester is mainly used to measure the roundness, cylindricity, straightness, concentricity, coaxiality, flatness, parallelism, perpendicularity, surface waviness, discontinuous surface, etc. of various regular and irregular circular workpieces. It can also perform spectrum analysis, wave height analysis, eccentricity, shaft bending analysis, and runout analysis on workpieces.
This device has excellent cost-effectiveness, full measurement capability, and is easy to learn and use.
Cylindrical Measuring Instrument,Cylindricity Measuring Instrument ,3D Image Measuring Instrument,Roundness Measurement Instrument
Zhejiang dexun instrument technology co., ltd , https://www.dexunmeasuring.com