Honey pomelo prevention of yellow leaves, fallen trees, big and small nutrition plan
1, spring shoots-flowering
Common problems: poor tree vigor, spring shoots do not turn green, weak flowers, many deformed flowers, and it is difficult to maintain fruit in the later period.
Solution: flushing: 15 kg of calcium + 5 kg of magnesium, more than 10,000 kg of water, more than 150 trees, to promote roots and strong trees, to prevent yellow leaves and yellow trees; , With large fertilizer spread or buried) spraying: spring shoots-before blooming, spray 1-2 times each to promote flowers and leaves;
Fujian Zhangzhou Lin Jinshan used water and fertilizer before, and the effect was very good, but it was more difficult to spray water and fertilizer in the mountains. In February this year, calcium and magnesium granules were applied once.
2, Xiehua-Fruit Frequently Asked Questions: Falling and falling fruits, deformed fruits, small and large fruits, young fruits swell slowly.
Solution: flushing: 15 kg of calcium + 5 kg of magnesium, more than 10,000 kg of water, and more than 150 trees; promote roots and strong trees, prevent yellow leaves and yellow trees, young fruits swell quickly; (orchards that cannot be drenched with water and fertilizer, Available 3 pairs / tree, spray or bury with large fertilizer) Spraying: 1500 times of boron, spraying 1-2 times after Xiehua, improve fruit setting rate, uniform young fruit development, neat fruit type;
In Luozhou, Zhangzhou, Fujian, the orchard had a lot of failed trees. After leaching calcium and magnesium once in the spring shoots and in the fruit preservation period, there were significantly more white roots. The number of lost trees decreased by 50, and the proportion of non-commercial fruits also dropped significantly.
3. Common problems in the fruit expansion period: slow fruit expansion, yellow leaves, fallen trees, cracked fruits, and less commercial fruits.
Solution: Sprinkle: 3 pairs / tree, spread or fertilize once with fertilizer when the fruit is expanded, promote roots and strong trees, prevent tree failure, and fruit swell quickly; spraying: fruit expansion period-before bagging, Spray 1-2 times; after bagging, spray 1-2 times with few yellow leaves and green trees.
The spring shoots of Lin Helong, Zhangzhou, Fujian, are a little yellow this year, and there are more small leaves and flowers. After 2 times of burial, the leaves returned to oil-green. After cutting off the large branches of this yellow tree, the fruit was normal. The third time, the fruit is quite beautiful!
4. After picking fruit-Frequently asked questions about tree vigor recovery: poor tree vigour, lost trees, yellow leaves, fallen leaves, large and small years.
Solution: Spread: 3 pairs / tree, apply fertilizer or bury once with fertilizer when winter fertilizer is applied after fruit picking, reduce yellow leaves and fallen leaves after recovery, restore tree vigor, and reduce failed trees; spraying: spraying 1 -2 times, preserve leaves, promote flower bud differentiation, prevent large and small years;
Zhangchun, Zhangzhou, Fujian Province, has a lot of yellow leaves and fallen leaves after picking fruit. Last winter, I planted it twice twice a year, two trees per tree. I did not expect that the tree will soon become green, the leaves will become oily, and the fruit will be easy to set up. There are many yellow leaves, and the effect is really obvious.