Why are there any troubles after kiwi bagging?
Recently, Hayward and other kiwifruit varieties are about to start fruit bagging. When the reporter visited the Meixian County and Zhouzhi Kiwifruit production areas in Shaanxi Province, some fruit growers reacted to problems such as fruit drop, insect fruit, and taste fade after bagging in previous years. guide. In response to the above problems, the reporter interviewed Zhang Anmin, technical director of the Zhouzhi County Science and Technology Association in Shaanxi Province.
Why do you have a fruit drop after bagging?
Zhang Anmin pointed out that fruit drop after bagging of kiwifruit was mainly due to the tightness of the pull and pull of the lead when the bag was bagged. The stalk was injured and nutrient transport was hindered, causing the fruit stem to rot. In this regard, bagging should be gently bag, do not crush the handle, should be folded up to the fruit around the handle, not too tight, insects, water can not go.
Why are there bugs after bagging?
Zhang Anmin told reporters that most of the worm-infested fruit is not tightly sealed at the bottom of the paper bag, that is, at the bottom, so that the pest will be harmed around the fruit, or the quality of the paper bag is poor, and it may be damaged or rain and rotten. Zhang Anmin suggested that the use of paper, soft, flexible and high-quality paper bags, wind and sun will not be bad. When bagging, the bottom of the paper bag should have only two corners of the ventilation holes, not the bottom of the whole open, and often check the bagging fruit, there are individual paper bags broken in time to replace, in order to eliminate the hazards of insects.
Why is the flavor worse after bagging?
1. In addition to applying organic fertilizers, biological bacteria and trace elements should be applied to increase the ratio of phosphorus and potassium in fertilizers. Phosphorus and potassium fertilizers should be applied during flower bud differentiation to promote nitrogen control and phosphorus supplementation. This can accumulate sugar and increase fruit production. Flavor.
2. Control water and nitrogen before harvesting. More water, more nitrogen, fruit cells, more water, less sugar, water control before harvest, nitrogen control, can increase the accumulation of sugar, especially in the summer even Yantai Hongwei Industry and Trade Co., Ltd. Nantong Hongda Electromechanical Manufacturing Co., Ltd. Shaanxi Saizhong Biotechnology Co., Ltd. The company has many rainy days and it is necessary to drain water in time. After the water and nitrogen are reduced, the fruit cells will have a high concentration and the sugar will accumulate, and the flavor will increase.
3, picking leaves before harvest, the fruit around the leaves too dense, lack of light, the accumulation of fruit sugar less. About 10 days before harvesting, the appropriate amount of leaves around the fruit was removed to help the fruit to see the sun and accumulate sugar.
4, timely bag. After several years of experience, kiwi picking bags is the best 3 to 4 days before harvesting, depending on the weather, but it can't be taken too early. Too early, the fruit can be polluted in the air for a long time, too late. Not conducive to fruit coloring.
5, timely harvest, can not be early mining. Early harvest, the fruit coloring sugar is not high, bagging fruit soluble solids more than 6.5% more appropriate harvest.
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