Diagnostic fertilization firstly performed leaf and soil tests to determine the base number of fertilization, and adhered to the principle of organic fertilizer and supplemented by chemical fertilizer. Balance the top-dressing fruit enlargement fertilizer, that is, compound fertilizer with N, P and K ratio of 0.5:1:0.8 in the fruit cell division period (late May to early June); topdressing fruit fertilizer, ie, diammonium phosphate, chlorine Potassium, trace element fertilizer, and oil residue are mixed in an amount of 100 kg per acre in a ratio of 0.5:1:1:0.5; attention is paid to foliar fertilizer, that is, once every 10 to 15 days after June, foliar fertilizer is sprayed once. .
Orchard sowing grass in the middle of May in the line planting white clover, hairy wolfberry fruit, mung bean or ryegrass and other green manure crops, can also make full use of natural grass, eradication and control of weeds, keep the growth of thatch thatched grass, to be When the weeds reach 20 cm, they are castrated to cover the ground of the planting belt and increase soil organic matter.
Before and after the germination of kiwifruit, the requirements for soil water content are higher, so as to ensure flowering development, budding, and early growth of branches and leaves. The field water holding capacity should be maintained at 60% to 80%. In the flowering period, irrigation should be controlled so as not to affect the opening of flowers. The fruit expansion period should decide the irrigation times and irrigation volume according to the soil moisture. In the early stage of fruit ripening, small ditch irrigation will help increase fruit quality and improve fruit quality.
Strengthen the flowering management and timely sparse buds: In the budding stage, timely eliminate the buds or dense buds and malformed buds. Artificial Pollination: When using male flowers or bee orchards, no matter what kind of pollination methods are used, attention should be paid to keeping pollen vigor. The tree with excessive fruiting can be used for fruit thinning several times. Before bagging the fruit, the fruit should be carefully sparse and the fruits should be neat and beautiful. Before the fruit is picked, pick leaves, cut shoots, and open the light path. The bagged fruit is removed 10 to 15 days before picking, and the fruit bag is removed to improve the conversion of dry matter in the fruit and promote the increase of sugar, hardness and color of the fruit.
Diseases and pests control The major diseases and pests of kiwifruit are brown spot disease, gray mold disease, canker disease, low salaried armor, scale insects, beetles, cockroaches, and wax coats. Spray 3 to 5 degrees lime sulfur before germination to eliminate all kinds of overwintering germs and pests. In early May, spraying 70% thiophanate-methyl 1000 times + enemy killed 2000 times to control brown spot, black mold, cockroach, beetle and so on. From July to August, spray once every 10 to 15 days, 2.5% green kungfu 2500 times, +20% swept the net 1000 times + 5% spirulina 500 times, mainly control brown spot, black mold, small salar A, Red spider, chafer and so on.
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