Rainfall is frequent during this period. Although the rain is not too large, the dew is not small every morning. Relatively speaking, the humidity in the orchard is high. High humidity and high temperature are very beneficial to the infection and spread of brown spot disease. We must tighten Keep the string of leaves, take the time to see the needles, and be sure to spray the third time after bagging. Don’t wait for the fallen leaves to be sprayed. It will be too late. Spraying must be done on time and never leave the pests. If there is a lot of rain in the later period of the forecast, after this spraying, the interval is 5~7 days, and the protective fungicide copper is added again. This year's spraying can come to an end.
A lot of rain has brought difficulties and inconveniences to the protection of leaves, but it has provided favorable conditions for topdressing and potassium supplementation at 7 under 8 levels. You must seize the opportunity to implement potassium supplementation. This year, many orchards have The number of bags covered is more than in previous years. The number of bags covered does not necessarily mean the output is large. The tree must be full to produce big and good fruits. It can also produce results year after year, especially the top dressing of 7 times and 8 times. The swelling is very obvious, because August is the period of rapid fruit swelling, which is the most effective period of fertilizer utilization and the most efficient period of investment. In August, as long as your investment is in place, you can 50~60% of the total annual output, because the nutrition of the fruit trees this month is to concentrate the fruit.
This time the top dressing must be fertilized with a full nutrient formula, not a single supplement of high potassium, and long-acting or slow-release compound fertilizers cannot be used, because this type of fertilizer is too slow in effect and will miss the rapid expansion of the fruit. So choose a fully water-soluble, quick-acting, fully nutritious fertilizer.
For orchards with a bagging capacity of about 15,000 per mu, it is recommended to use the water-soluble high potassium 20 kg recommended by Zhongnongle, a barrel of Mengli 28 or a bag of bio-enzyme or a box of Ligunli, and a bag of mineral crystals. , According to the amount of bagging per mu, you can increase or decrease appropriately. If the bagging amount is large, use more fertilizer, and apply it in two times.
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