Grape young fruit water and fertilizer management
One, do the fruit thinning
This is an important measure to reasonably control the output and keep the ears evenly and neatly. After the natural physiological fruit drop of young fruit, according to the actual situation, it can grasp the fruit thinning, especially the fine production of orchards, must be in accordance with standard procedures, finely grasp the finishing of the ear, remove small fruit, stale fruit, fruit and fruit Dense fruit, improve fruit quality.
Second, scientific and rational use of expansion
Tetraploid cultivars are dipping fruit and then dipping in bulking agents. Non-nucleated cultivars can be immersed in low concentrations of gibberellin. The use concentration of the bulking agent and gibberellin should be in accordance with the requirements of the specification and be determined according to different species and test conditions. Nuclear and Eurasian grape varieties should not use swelling agents and gibberellins.
Third, grasp the ear bagging
In order to reduce the occurrence of diseases and prevent the pollution caused by the use of pesticides on the ear, we should vigorously promote and promote ear bagging. Ears should be bagged immediately after fruiting and dipping. Use a self-absorbing bactericide before bagging and grasp the bag after medication. The selection of pre-bagging agents should take into account the pest control points. The focus of prevention and control prior to bagging is gray mold, anthrax, and white rot.
Fourth, use good fertilizer
The fruit enlargement needs enough nutrients. In the early fruit swell period, when the size of the mung bean is drip, the balanced large amount of element water-soluble fertilizer is 5-10 kg/mu, about once a month or so. At the same time, it combines pest control and foliar spraying to improve stress resistance, increase leaf flexibility, and prevent cracking.
V. Field Management
Mainly water control, weeding, weeding, picking up and going to a shoot. To keep the soil dry and wet, it is best to use drip irrigation. At the same time, it is necessary to do a good job of picking up the hearts and going to the auxiliary shoots to properly control vegetative growth so as to facilitate the growth and development of concentrated nutrient supply fruits. Timely binding of new shoots to improve ventilation and light conditions and microclimate in the field, in order to facilitate the normal growth of grape plants and berry development.
Six, grasp pest control
This period focuses on the control of downy mildew and anthrax. The rainy season is a time when downy mildew can easily occur. Therefore, we should focus on prevention and treatment in this period.
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