Orchard spring drought response measures
In winter and spring, rainfall in most areas of Sichuan has decreased, sunshine has increased, surface water evaporation has increased (take Danling County as an example). Rainfall has decreased by 70%, daily average temperature has increased by 0.8°C, and sunshine has increased by 60%. It has become more serious. drought. And the drought continues. The orchards lacking water resources should take the necessary technical measures to minimize the impact of drought. First, irrigation and fertilization. It can be divided into two cases: the fruit on the tree and the fruit on the tree. The species with fruit on the tree can obtain some water from the fruit when the tree is deficient, but this will reduce the quality of the fruit. The water and fertilizer management measures in this kind of orchard during spring drought should be a small number of irrigation, while the fertilizer is temporary. No application; species with no fruit on the tree are used before the flowering critical period (about one week) until flowering is the critical period of water requirement of the fruit tree; because the tree has a certain self-regulation function, postponing irrigation as much as possible, so the fruit tree will naturally delay the flowering and postpone Send new shoots. Second, irrigation methods. You can choose the dropper method; if you choose to water, it is better to use a few times. Third, fertilization methods. If there is insufficient water, no fertilizer (mainly fertilizer) is used. To fertilize it must go through a large rainfall process and the soil is fully moistened before proceeding. The above measures are some effective measures after encountering droughts this spring, but they are only technical measures for palliative treatment. The "anti-drought" of orchards is to improve the drought resistance of fruit trees (engineering measures to improve water supply). 1. Improve the soil and increase the "thickness" of the soil. Two important aspects of soil improvement are good porosity and high organic matter content. The deep and deep soil structure promotes the formation of deep roots and is conducive to the absorption of deeper soil moisture. This work is mainly done before the construction of the park. It is now a good technical measure to use soil drilling to improve the soil of adult orchards. 2. Increase the organic fertilizer and rational formula fertilization to form a robust and aging fruit tree constitution. Robust and aging trees reduce moisture transpiration and store more moisture; 3. Grass cultivation, practice has proved that a good live grass layer has a significant effect in reducing the evaporation of soil moisture. 4. Promote fertilization in the fall and reduce or eliminate spring fertilization. In autumn, all organic fertilizers and fertilizers needed in the spring can be applied. Skin Care Products,Pimple Patches,Hydrocolloid Patches,Acne Patches Henan Maidingkang Medical Technology Co.,Ltd , https://www.mdkmedical.com