How to fertilize hazelnut trees?
The adult hazelnut tree fertilizer should be based on analysis of hazelnut tree leaves and raw soil. Reasonably, fertilizer is one of the key measures to promote the growth and development of hazel and early high yield. At the same time, it can increase the fertility of raw soil, increase the content of organic matter, promote the growth of trees, promote the development of flower buds, reduce the loss of flowers and fruit, increase the yield, and avoid Volume years. Nitrogen fertilizer is used every year from March to April. The strips are applied 30-60 cm below the branches. According to raw soil pH, choose acidic or basic form nitrogen fertilizer. The whole process of growth and development of the hazel tree, ammonia, phosphorus, potassium is the main nutrient element, and the rural fertilizer and chemical fertilizer should be reasonably matched. In the fall, the fertilizer is mainly used for composting rural fertilizers. In the growing season, fertilizers are compound fertilizers (nitrogen, phosphorus, and potassium). Autumn fertilization in rural areas was carried out from September to October. The amount of fertilizer was confirmed on the basis of age, and 20-25 kilograms of fertilizer was used on an ordinary plant. The final result was to increase the amount of fertilizer. Use multiple compound fertilizers. Phosphate fertilizer can be used at any time during the year, and it is best to apply it to the underside of the tree's drip plane contact line. Potash can be used together with nitrogen fertilizer. Use once for 2 years. Boron and iron are other key nutrients. When required, one-thousandth boric acid or moonstone is used at a time and the amount is 120g per hazel tree. Potassium sulfate is better than potassium chloride. In phosphorus-deficient raw soil, use it for a period of 2-3 years at a time. On the fertilizer time: the first time in early April, the second time in late June, to join the water. On the amount of fertilizer: saplings (within 4 years), the plant applied 150 to 400 grams, the age of large increase in the amount of fertilizer. The upper fertilizer method is mainly considered suitable and uses a ring-shaped fertilizer. The chemical fertilizer is applied in a circular manner and is a certain distance from the tree body. The fertilizer is spread on average and is 5 to 10 cm deep. When the content of N in hazelnut leaves is less than 1.5 hundred percent, the amount of N is 500 g per tree; when the content of P is less than 0.14, the amount of phosphorus is 500 g per tree, and when the content of K is lower than 0.5, the sulfuric acid The amount of potassium is 1000 grams per tree. When the content of N in hazelnut leaves is 1.5-20%, the amount of N is 4500g per tree; the content of P is 0.14-0.16%, the amount of P is 300g per tree, and the content of K is 0.5- At 0.8 percent, K is used at 750 grams per tree.
1. Hazelnut fertilizer on the tree in autumn
It refers to the application of organic fertilizer from the harvest of autumn fruits to the freezing of raw soil (from September to October). The manure is mainly composed of manure, compost, plant fertilizer, human feces, and urine, and is a basic fertilizer that provides various nutrients for the tree for a long time. At the same time, to participate in a suitable amount of nitrogen, phosphorus, potassium compound fertilizer. The application of organic fertilizers can increase the porosity of raw soil, loosen the raw soil, accelerate the integration of soil and fertilizer, improve the water, fertilizer, gas, and heat in the raw soil, and help the micro-living material activities. Especially in the early autumn, the organic fertilizers are decomposed for a long period of time and are not only heavily mineralized, but can be used for reference by the root system early in the spring; and they can increase flower buds, increase the quality of flower buds, and strengthen the wintering of the trees; Parks protect the earth, increase the temperature, and avoid frostbite in the roots. If the autumn can't catch up with the fertilization, then spring can be applied before the sprout in the spring of the following year. However, in the spring, fertilizer is applied slowly and the fertilizer effect is slow. It is not always satisfactory to meet the growing needs of the early spring hazel, and later it also causes the growth of shoots, affecting flower buds and fruit development.
2. Fertilizer topdressing on hazelnut tree
Top dressing can not only make the tree strong, obtain high-yield, high-quality fruit, but also give a satisfactory basis for the final result of the next year's growth, which is the necessary fertilizer link for increasing the yield of hazel. Hazel usually tops twice: for the first time in late May and until the first ten days of each month in June. At this time positive value of fruit ovary volume increase period and new shoot growth time; the second time for the first ten days of July to mid-July. For the first ten days of each month from June to mid-July in June, the rapid development of nuts and the initiation of flower buds began. During this period, top dressing was extremely important for fruit development, flower buds, and branches. In addition, depending on the growth and development of the tree, it is also possible to spray fertilizer on the leaves.
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