First, the depth of fertilization is not scientific 1. There are many fruit growers in the production of organic manure in successive years. They used to spread organic manure in a tree tray and use a shovel or a small agricultural machine to carry out lighter turning. This method of fertilization enables a large amount of organic nutrients to be absorbed within 20 cm, which is of special significance for improving the yield and quality of fruit. However, organic manure is applied shallowly for successive years, which can easily cause the root system to float. These floating root systems are extremely vulnerable to frost damage and drought, making the tree extremely fragile and difficult to recover, and some even become old trees. Individual fruit growers even adopt fertilization methods that spread organic fertilizer on the surface of the tree plate, and the effect will be even worse. Not only will it not achieve the effect of fertilization, but it will also lead to a large loss of fertility. Improvement methods: Shallow application and deep application are combined. Shallow application can also be combined with tree-straw cover. 2. The application of organic fertilizers to deep-rooted fruit farmers is affected by the fertilization techniques of the original thin-fruit crown fruit trees. The application of organic fertilizers to 50 cm or less causes a large amount of organic matter to be wasted. Improvement methods: Since most of the roots are concentrated between 20 and 50 cm from the ground, the depth of application of organic fertilizer should also be within this range in order to maximize the effectiveness of the fertilizer. When straw fertilizer is applied, it is better to carry out stacking fermentation in advance, and then mix it with topsoil and apply it. If it is too late to stack, it can be applied in layers. Sprinkle appropriate amount of phosphate fertilizer and nitrogen fertilizer on each layer. 3. Fertilizer application Affected by the application of fertilizers to crops, many growers are used to spreading nitrogenous fertilizers on the surface, and even salted fertilizers and fertilizers use salting method. Although it is simple and easy to implement, it has more harm than good. First, the application of nitrogen fertilizer will cause large amounts of nitrogen to evaporate. Second, large amounts of fertilizers accumulate on the surface after spreading, and are easily absorbed by grasses, causing waste. The third is the application of ammonium bicarbonate fertilizer during the young fruit period, which can easily damage young fruit by the volatilized ammonia gas and form fruit rust. Fourth, phosphorus in phosphate fertilizers and compound fertilizers is not easy to move, and it is difficult to spread the fertilizer effect on the surface. Improvement method: Use multiple pits. The principle is to apply to the soil, the roots, the root is not fat, fat to find the root. Second, fertilization method monotonous root system is a three-dimensional structure, is limited to a fertilization method, will make some parts of the root system can not get enough nutrition. The alternate rotation or cooperation of several methods can maximize the nutritional needs of the root system, thereby greatly increasing the yield and fruit quality. Improvement measures: When saplings are planted, they should dig large pits, apply enough organic fertilizer, and then apply organic fertilizer to expand the holes every autumn until the whole garden is used again and again. Gully ------ ring groove and other methods of rotation. Third, fertilization is too concentrated. Fertilization is too concentrated. It is very common in production. Many saplings suffer from fertilizer damage, causing root dead and trunk dryness. After the adult trees have been damaged, they often cause brown burns in the roots, which can easily cause root rot and other root diseases. Improvement methods: soluble fertilizers, such as nitrogen fertilizers, potash fertilizers, trace element fertilizers, etc., can be applied when applying a hole, each hole 50 to 100 grams, 10 to 15 cm deep. When applying phosphorus and other difficult-to-dissolve fertilizers, it is best to mix it with organic fertilizers and apply them. It is also not possible to apply too much concentration. When applying a hole, it is best to mix with the soil, about 100 grams per hole, and the depth is 15 to 20 centimeters. The distance from the hole is about 30 cm. Fei County Mingtao Electronic Co.,Ltd , https://www.yourbeautyassistant.com