Fertilization technique of Zizyphus jujuba

Green jujube is a tropical and subtropical fruit, it is crisp, sweet and delicious, high nutritional value, contains a lot of vitamin C, calcium, phosphorus ingredients, because of its beautiful fruit shape, but also the reputation of tropical small apples. If you want green jujube to grow well, fertilization is very important. Let's take a look at the fertilization technology of green jujube with Xiaobian.

1. Characteristics of fertilizer requirement

Green jujube grows rapidly, the fruit is not only very tall, but also needs dry pruning weight every year, so it needs a great amount of fertilizer, and there are many kinds of fertilizer. According to research, for every 100 kg of green jujube, it needs to consume 43.8 grams of pure nitrogen, 7.5 grams of pure phosphorus, 101 grams of pure potassium, as well as calcium, magnesium and iron. Its growth is inseparable from nitrogen, phosphorus and potassium, in which the demand of potassium is 2-3 times that of nitrogen. More potassium fertilizer should be applied in production to increase the yield. However, the demand for magnesium is also relatively high, which is three times that of phosphorus and about 60% of phosphorus when calcium, so we must pay attention to the supply of these trace elements in the market.

2. Fertilization for young trees

The fertilization of young trees without fruit and at the age of 5 years old should follow the principle of frequent light application, less amount and more times, first light and then strong. Fertilization should be applied once a month in spring, summer and autumn, mainly in spring and nitrogen fertilizer to promote plant flower bud differentiation, phosphorus fertilizer in summer to promote strong branch growth, and potassium fertilizer in autumn to speed up the transport of plant nutrients and make it blossom and bear fruit. Lay the foundation for high yield.

3. Fertilization for fruit trees.

For the adult trees that have borne fruit, they should be fertilized four times a year, and the base fertilizer should be applied in March-April to supplement the nutrients consumed by the plant, urge it to restore the tree potential as soon as possible, and lay the foundation for high yield in the coming year. Generally, 40-50 kg of rotten farm manure is applied to each plant, and appropriate amounts of calcium, magnesium and other micro-fertilizers can be applied at the same time. The second time is flower fertilizer, which is applied from June to July to promote flower bud differentiation, mainly with available nitrogen, phosphorus and potassium compound fertilizer. If the plant is overgrown, it is necessary to apply less nitrogen fertilizer, mainly phosphorus and potassium fertilizer. The third time was fruit protection fertilizer, which was applied from September to October to increase the fruit setting rate and promote fruit development, mainly nitrogen and potassium fertilizer. The fourth time was strong fruit fertilizer, which was applied from December to January, mainly potassium fertilizer, to promote fruit expansion and improve yield and quality.

The above is the introduction of green jujube fertilization technology, hope to help you, want to know more related knowledge, please pay attention to us.