Adult hazelnut tree fertilization should be determined based on analysis of hazelnut tree leaves and soil. Reasonable fertilization is one of the important measures to promote the growth and early high yield of hazel tree. At the same time, it can increase soil fertility, increase organic matter content, promote healthy tree growth, promote flower bud differentiation, reduce flowering and fruit drop, increase yield, and prevent years of age. Nitrogen fertilisers are applied between March and March each year and the strips are applied 30 to 60 cm below the shoots. According to the soil pH, choose acidic or basic form nitrogen fertilizer. During the entire growth and development process of hazel, ammonia, phosphorus, and potassium are the main nutrients, and farmyard manure and chemical fertilizers must be properly matched. The fertilization of farmyard manure is the main method for fertilization in the fall, and the fertilizer is the compound fertilizer (nitrogen, phosphorus, and potassium). Autumn farmhouse manure is carried out from September to October. The amount of fertilization is determined for the age of the tree. Generally, 20-25 kilograms of fertilization is applied to one tree, and the amount of fertilization is increased during the period. Use multiple compound fertilizers. Phosphate fertilizer can be applied at any time of the year, and it is best to apply it under the drip line of the tree. Potash can be applied together with nitrogen fertilizers. Apply once for 2 years. Other important nutrients are boron and iron. When necessary, one-thousandth of boric acid or borax is applied at a time and the amount is 120g per hazel tree. Potassium sulfate is better than potassium chloride. In phosphorus-deficient soils, application is usually effective for 2-3 years at a time. Fertilization time: the first time in early April, the second time in late June, to combine watering. Fertilizer amount: saplings (within 4 years of age), the plant applied 150 to 400 grams, increase the fertilizing amount of the tree age. The fertilization method mainly uses circular fertilization. Fertilizer in the form of a loop, a certain distance from the trunk, evenly spread, 5 to 10 cm deep, and covered with earth. When the content of N in hazelnut leaves is less than 1.5%, the amount of N is 500g per tree; when the content of P is less than 0.14, the amount of phosphorus is 500g 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 1.5-2%, the amount of N is 4500g per tree; when 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%, K was used at 750 grams per tree.
1. Hazelnut Fertilizer Application Base Fertilizer
It refers to the application of organic fertilizer from autumn fruit collection to soil freezing (from September to October). Basal fertilizer mainly consists of manure, compost, green manure, human feces, and urine, and is a basic fertilizer that can supply various nutrients to the tree for a long time. At the same time, it is necessary to add appropriate amounts of nitrogen, phosphorus and potassium compound fertilizers. The application of organic fertilizer can increase soil porosity, loosen the soil, accelerate the integration of soil and fertilizer, improve the status of water, fertilizer, gas, and heat in the soil, and is conducive to microbial activity. Especially in the early autumn, the basal fertilizer has a long decomposition time for organic matter decomposition. It not only has a high degree of mineralization, but can be absorbed and utilized by the root system in the spring. It can also promote flower bud differentiation, improve the quality of flower buds, and increase the overwintering quality of trees; Protect your body, increase your temperature, and prevent frostbite in the root zone. If the fall is less than Schiffer fertiliser, the basal fertiliser can be applied before spring sprouting in the spring of the following year. However, in the spring, basal fertilization exerts slower fertilizer effect, which can not always meet the needs of the early spring growth of hazel, and leads to the re-growth of branch shoots at the later stage, which affects flower bud differentiation and fruit development.
2. Hazelnut Fertilizer Topdressing
Top dressing can not only make the tree strong, obtain high-yield, high-quality fruit, but also lay a good foundation for the growth results in the coming year, and it is an indispensable fertilization link for the production of hazel. Hazel usually tops twice: the first time from late May to early June. At this time, the fruit ovary is inflated and shoot growth period; the second time is from early July to mid-July. From early June to early July, it is the rapid development of nuts and the differentiation of flower buds. During this period, top dressing is very important for fruit development, flower bud differentiation, and shoots enrichment. In addition, depending on the growth and development of the tree, it is also possible to spray fertilizer on the leaves.
1. Hazelnut Fertilizer Application Base Fertilizer
It refers to the application of organic fertilizer from autumn fruit collection to soil freezing (from September to October). Basal fertilizer mainly consists of manure, compost, green manure, human feces, and urine, and is a basic fertilizer that can supply various nutrients to the tree for a long time. At the same time, it is necessary to add appropriate amounts of nitrogen, phosphorus and potassium compound fertilizers. The application of organic fertilizer can increase soil porosity, loosen the soil, accelerate the integration of soil and fertilizer, improve the status of water, fertilizer, gas, and heat in the soil, and is conducive to microbial activity. Especially in the early autumn, the basal fertilizer has a long decomposition time for organic matter decomposition. It not only has a high degree of mineralization, but can be absorbed and utilized by the root system in the spring. It can also promote flower bud differentiation, improve the quality of flower buds, and increase the overwintering quality of trees; Protect your body, increase your temperature, and prevent frostbite in the root zone. If the fall is less than Schiffer fertiliser, the basal fertiliser can be applied before spring sprouting in the spring of the following year. However, in the spring, basal fertilization exerts slower fertilizer effect, which can not always meet the needs of the early spring growth of hazel, and leads to the re-growth of branch shoots at the later stage, which affects flower bud differentiation and fruit development.
2. Hazelnut Fertilizer Topdressing
Top dressing can not only make the tree strong, obtain high-yield, high-quality fruit, but also lay a good foundation for the growth results in the coming year, and it is an indispensable fertilization link for the production of hazel. Hazel usually tops twice: the first time from late May to early June. At this time, the fruit ovary is inflated and shoot growth period; the second time is from early July to mid-July. From early June to early July, it is the rapid development of nuts and the differentiation of flower buds. During this period, top dressing is very important for fruit development, flower bud differentiation, and shoots enrichment. 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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