Reasonable fertilization is an important basis for high yield in Liyuan. Basal fertilizer should be dominated by soil miscellaneous fertilizer to improve the soil, improve the soil's ability to maintain fertilizer and water, and provide more comprehensive nutritional elements.
The application time is better after autumn fruit picking. The temperature is higher during this period and the fertilizer is easy to decompose. At the same time, it is a new root generation period, which is conducive to absorption, so as to promote the accumulation of tree nutrients, and has a good effect on the differentiation of female flowers in the following year. .
Top dressing is mainly quick-acting nitrogen fertilizer, with phosphorus and potassium fertilizers, and the top dressing time is early spring and summer. The first-fruited trees in spring are generally topped with 0.3-0.5 kg of urea per tree, and each top-dressing tree has 2 kg of topdressing urea. After the recovery, we must combine watering to give full play to the fertilizer effect. Summer top dressing is carried out from late July to mid-August. At this time, the quick-effect nitrogen fertilizer and phosphate fertilizer can promote the increase of fruit size, plump fruit, and improve fruit quality.
The extra-root fertilizer can be carried out several times a year, with the emphasis on doing it twice.
For the first time, the leaves of the bases of early spring shoots were changed from yellow to green, spraying 0.3%-0.5% urea plus 0.3%-0.5% borax. The role is to promote the basic leaf function, improve photosynthesis, and promote pot flower formation.
The second time is the spraying of 0.1% potassium dihydrogen phosphate two times at intervals of 10-15 days before harvest and 1 month, and the main effect is to increase the photosynthetic efficiency and promote the transfer of nutrients from the 12 official leaves to the fruit. There is a significant increase in the effect of single grain weight.
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