The latest fertilization skills of Chinese chestnut

Chestnut is one of the dried fruits that we are often late for, and peaches, apricots, plums and dates are called "five fruits". They are rich in vitamins, sweet-scented osmanthus and mosquito repellent. Unreasonable fertilization in chestnut planting will often lead to poor plant growth and decline in yield and quality. let's learn about the fertilization skills of Chinese chestnut with Xiaobian.

1. Base fertilizer

The application time of chestnut base fertilizer should be applied in autumn after fruit harvest, when the temperature is higher and the fertilizer is rotten, which can provide long-term fertility for the plant. at the same time, it is also the period of new root germination of chestnut trees, which is conducive to absorption and promote the accumulation of tree nutritions. it plays a good role in flower bud differentiation in the coming year and lays a foundation for high yield in the coming year. The specific amount of fertilizer application should be considered according to the amount of fruit hanging, tree potential, tree age and other aspects, mainly farm manure or organic fertilizer, with appropriate amount of phosphorus and potassium fertilizer and trace elements.

2. Topdressing

Topdressing is mainly available nitrogen fertilizer, reasonable combination of phosphorus and potassium fertilizer, topdressing time is generally in early spring and summer, when it is flower bud differentiation and flower and fruit stage, need a lot of nutrients for growth and development and flowering and fruiting. Spring application is generally 0.3-0.5 kg urea per young tree and 2 kg urea per fruit tree. After topdressing, the fertilizer effect can be brought into full play. Summer topdressing is usually carried out from July to August, when it is the period of young fruit expansion. Topdressing with available nitrogen and phosphorus fertilizer can promote fruit grain enlargement, full pulp and improve fruit quality, but we should pay attention to the application amount of nitrogen fertilizer so as not to cause excessive vegetative growth. on the contrary, it affects the yield and quality of Chinese chestnut.

3. Extra-root fertilization

The first two are root fertilization, but the plant needs a large amount of fertilizer at some time, the root absorption can not meet the growth needs, so it needs extra-root fertilization to supplement. Extra-root fertilization is applied many times a year, and for the first time in early spring, when the basal leaves of branches change from yellow to green, spraying 0.3% mi 0.5% urea plus 0.3% mi 0.5% borax can promote leaf function, improve photosynthesis, promote flower formation, and lay the foundation for high yield. For the second time, 0.1% potassium dihydrogen phosphate was sprayed one month and half a month before harvest, the main function was to improve photosynthetic efficiency, promote the transfer of nutrients in leaves to the fruit, and significantly increase single grain weight.

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