At present, it is the critical period for the kiwi fruit to expand and determine the quality of the fruit. It is also the peak period of fertilizer demand and the most serious period of pests and diseases. During this period, the fruits must be thinned out and the fruit swelling fertilizer should be applied in time to prevent and control the pests. , Irrigation and pruning management.
Fruit thinning and fruit thinning 15-20 days after flowering, first of all pollinated mal-fertilized malformed fruit, disease fruit and fruit, stiff fruit, small fruit, etc., to retain the normal fruit of thick and well-developed fruit stems; The length of the fruit is adjusted. Generally, 3 to 4 long fruit branches, 2 to 3 mediocre fruit branches, and 1 short fruit branch are generally used. The kiwifruit in the fruiting period generally retains 23,000-25,000 per mu, and the Chinese kiwifruit retains 24,000-28,000 per mu.
Top dressing irrigation in early June, 200 kg organic nutrient fertilizer per mu in full fruit period, or 1 kg topdressing NPK compound fertilizer per plant, plus 0.5 kg of microbial bacterial fertilizer. June is the critical period for kiwi fruit water demand. The water supply must be guaranteed to meet the growth of kiwi fruit. According to the soil moisture, combined with fertilization, timely irrigation should be carried out. Conditional orchards should implement integrated water and fertilizer fertilization. Irrigation must be avoided at noon, otherwise the ground temperature will decrease rapidly, causing wilting of the tree.
After pest control and fruit setting, the whole garden is used once to prevent and control pests such as stink bugs, wax-winged cicadas, oriental small snails, and brown spot disease. The agent can be selected as 2.5% cyhalothrin 2500 times solution, plus agricultural resistance 120 or 800 times polymycin. In mid-to-late June, the whole garden artificially releases predatory mites to prevent and control red spiders. Generally, each kiwi fruit can be hung in a bag and hung at the branch of the branch.
Scientific summer pruning branches grow vigorously, overdense branches and entangled branches should be removed to maintain vegetative and reproductive growth balance, and at the same time tie vines evenly to improve ventilation and lighting conditions. Around 12 o'clock noon, the ground under the shelf is evenly distributed with light spots Is appropriate.
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