Water and Fertilizer Management Technology after Grapes Are Harvested

First, prevent and cure pests and protect autumn leaves. First of all, care should be taken to minimize damage to the leaves when the fruit is harvested. In addition, under normal circumstances, the management measures of old leaves should be used as little or as little as possible, and the use of tetromycin and sulfur pesticides should be strictly controlled during the late growth period to prevent premature leaf aging and reduce photosynthetic efficiency. After harvesting fruit, the main diseases and pests that damage the grape leaves are downy mildew, powdery mildew, floating dust, and so on. If you take 3,000 times of alfa phosphorus or 1,000 times of thirst poison every 10 days, you can effectively prevent downy mildew and white powder. The occurrence of disease can be controlled by the 1000-fold omethoate on floating dust. Second, rational fertilization, restore tree vigor. After the harvesting of the grapes is complete, it is necessary to apply enough fertilizer after the application of good harvesting, and spraying 2-3 times of 0.3% urea or 0.3% potassium dihydrogen phosphate solution with spraying can effectively increase the photosynthetic efficiency of the leaves and restore the tree vigor. Tree nutrition. In the case of multiple results and weak tree vigor, some available nitrogen fertilizers can be added, such as decomposed human waste, pig manure, urea, etc. Basal fertilizer is the most important part of fertilization in vineyards. Production practices show that as early as possible, the basal fertilizer in autumn will be as good as possible. Under normal circumstances, Mu with sufficient maturity of earth fertilizer, circulatory fertilizer, compost 3000-5000 kg, plus superphosphate 20 Kilograms were mixed and then ditched. After the application, the soil was poured and irrigated. Third, take care of tips, prevent leggy. The leggy vines will consume a large amount of nutrients in the tree body, and they should take measures such as topping and wiping off secondary shoots to control their growth so as to reduce the ineffective consumption of nutrients and promote the growth of the main vines and the retained secondary shoots, and the buds are full and full. Can also be sprayed 0.05% longer than the long-term solution suppression. At the same time, the branches should be properly pruned, stout branches to stay, thin branches stay less, over dense branches, thin branches, pests and branches should be removed as soon as possible. Fourth, cultivating loose soil, clean orchards. Due to frequent picking and management operations, the soil is easy to be practised, and once cultivated, a cultivator ripping should be performed immediately to increase the loose air permeability of the soil and promote new roots. Combined with autumn and winter pruning, the litter and pests in the orchard will be completely removed and destroyed in a centralized manner, reducing the number of disease and insects overwintering bases, and reducing the damage of pests and diseases in the following year. Fifth, reduce damage and prevent winter buds. In some places, after the harvesting of grapes, a large number of offshoots and old leaves are cut off, which not only affects the ripeness of the branches in the year, but also easily triggers winter buds, seriously affecting the growth and results of the plants in the following year. Generally, the leaves are not picked after harvesting and less shoots are removed, so as to retain robustness as much as possible. branches and leaves. At the same time pay attention to field operations, to prevent mechanical damage to the branches and leaves to ensure that the branches are normally mature. (Source: Fruit Tree Technology and Information)

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