Organic fertilizer is a fertilizer processed from biological materials, animal and plant waste, and plant residues. It eliminates toxic and harmful substances and is rich in a lot of beneficial substances, including various nutrients. It not only provides comprehensive nutrition for crops, but also increases soil organic matter and improves soil physical and chemical properties and biological activity. The application of organic fertilizer is an important way to improve the quality of fruit and produce green organic fruits. In this issue, the author explains the application methods and related knowledge of fruit tree organic fertilizer, in order to help the fruit farmers. The organic fertilizers currently used in orchards are mostly farmyard manures. These fertilizers contain a large amount of nitrogen, phosphorus, potassium and a certain amount of medium and trace elements and biologically active substances, which not only provide comprehensive nutrition for fruit trees, but also have long fertilizer efficiency and can be increased and updated. Soil organic matter enhances soil water retention, fertilizer retention and fertilization capacity. However, fruit trees need a balanced supply of nutrients. Although the nutrients in organic fertilizers are very rich, the proportion and content of nitrogen, phosphorus and potassium cannot fully satisfy the growth requirements of fruit trees. Especially in the process of composting of organic fertilizer, the nitrogen content will be further reduced. If the application of organic fertilizer is sufficient to meet the nitrogen demand, phosphorus and potassium will be excessive, causing waste; if phosphorus and potassium meet the fruit trees Need, nitrogen fertilizer is not enough. Therefore, the simple application of organic fertilizer can not meet the demand of NPK for fruit trees at the same time, and should be applied in combination with chemical fertilizers. Unfertilized organic fertilizer is harmful to fruit trees 1. Burn the root system. Most of the farmyard manure comes from animal manure and is rich in organic matter. When these organic fertilizers are not decomposed, their nutrient status is slow-acting and cannot be directly absorbed and utilized by the roots of fruit trees. If they are applied, in the process of underground decomposing, heat is easily generated to cause root burns (commonly known as "burning roots"). Cause root rot. 3. Easy to provoke pests that are underground for winter. Unfertilized organic fertilizer has a large amount of animal organic matter, so it is an ideal wintering place for many fruit tree pests. It is especially easy to attract all kinds of chafers (蛴螬), peaches, heartworms, scorpions, boat-shaped caterpillars, pear flower nets, etc. It is extremely unfavorable for pest control in the coming year. When stacking unfertilized organic fertilizer, the composting site should be selected in the place of leeward, sunny, and high ground. The agricultural film or cement floor should be laid on the composting ground, and the livestock manure in the farmyard fertilizer should be broken, and the straw should be The mash is crushed below 5 cm, and about 3% of the superphosphate and the manure are mixed and then piled up. After the pile is completed, the surface is flattened with a spade, covered with mud for about 10 cm thick or covered with agricultural film, and the surrounding is pressed tightly to create an oxygen-deficient environment, so that it can be decomposed as soon as possible. When the color of the organic fertilizer changes from the original gray to purple, black, the texture is loose, and there is a foul smell, it indicates that it has been decomposed. When applying organic fertilizer, the other parts under the vertical projection of the canopy should be selected, and the fertilization ditch with a width of 30-40 cm and a depth of 30-40 cm should be excavated, and the organic fertilizer and the appropriate fertilizer (nitrogen, phosphate fertilizer) and topsoil should be evenly mixed and put into the fertilization ditch. The bottom is covered with the bottom layer of raw soil, or it is applied to the whole garden. After being applied, it is turned into the soil layer. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Greenhouse Dutch Buckets,Dutch Bucket,Tomato Dutch Bucket,Plastic Dutch Bucket JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , https://www.alibabagreenhouse.com
Organic fertilizer should be combined with chemical fertilizer
2. The nutrient release is not synchronized with the tree body. After the application of unfertilized organic fertilizer in autumn, the soil temperature in autumn and winter is low, and it takes a long time for underground decomposing. In the spring of the second year, although the ground temperature is high, the rain in the north is generally low, and the rate of application of organic fertilizer is still very slow. At this time, the tree needs a lot of nutrients to supply the fruiting results of the tree, and the organic fertilizer is released. Limited organic nutrition does not meet the needs of the tree. After entering the summer and autumn of the second year, the rate of decomposing of unfertilized organic fertilizer was significantly accelerated in the previous year, releasing more organic nutrients that can be absorbed by the trees, resulting in accelerated growth of trees, large amounts of strips, and excessive nutrient growth. The flower bud differentiation ability is poor, so that a large amount of organic nutrients are wasted, and the nutrient supply of the tree is out of balance.
Organic fertilizer composting and application