Lead: About 90% of a fruit is water. There is no long tree without water, no light and no result; there is no income in the water, and more in the income. But the water is not as good as possible. Should not be poured, poured, poured, how much, should be flexible according to the following points:
First, throughout the growing season, according to soil moisture, listen to the weather forecast, timely watering according to drought and precipitation.
Second, according to the strength of the tree, the number of fruit sets to decide whether to water. If the tree is too young or less, the number of watering can be reduced; if the tree is weak or there are many fruits, it is necessary to water more.
Third, the watering time is different, the effect is different. For example, in a tree, there is only one growth center in one stage, which is the “peak†period. April and September are the peak growth of roots. At this time, watering and roots grow well; May and August are the peaks of shoot growth (May is the peak of spring shoot growth, August is the peak of autumn shoot growth), then watering shoots It grows long and can extend and delay the capping time. However, in the cultivation of fruit trees, autumn shoots are generally not required. Because the autumn shoot grows longer, the accumulated nutrients in the early stage are easily consumed by the long autumn shoots, which is not conducive to the formation of flower buds, and does not meet the regular requirements for early growth and early accumulation of fruit trees. For trees with more fruit or weak trees, watering in the first half of May before the branches are not capped, can delay the capping, making the new shoots grow longer; but for the trees, re-casting may make the branches long. It is too long, reducing the number of short and medium branches, resulting in fewer flowers and more trees. From mid-June to late July, it is the first expansion period of apples. During this period, watering is more obvious than not watering. With the above rules in hand, you will know whether each water is a long branch, a long fruit or a long root.
Fourth, for Red Fuji, even if the water is controlled before June 30, there will be no cracks in the later stage. However, in the month from July 20th to August 20th, because the temperature is the highest and the evaporation is large, if there is water shortage in the ground, the leaves will pull the water in the young fruit to the leaves to evaporate, so the young fruit will stop. Once grown, in the later stage, once watered or rained, the flesh will be swollen quickly, and the peel will be slower. The uneven growth will cause micro-cracks on the fruit surface. Therefore, we must maintain the soil moisture supply this month.
5. Fruit trees have more fruit, and they need more water, so they are not drought-tolerant. For example: the same two trees, a tree with a hundred pounds of fruit, a tree has no result, the tree that bears a hundred pounds of fruit needs about 100 kilograms of water more than the fruitless tree; the same drought, no fruit tree drought.
6. Fruit trees should be properly controlled in water from June to July, except for the leaves and the water required before germination. (If the drought is too dry, the soil should be watery.) The irrigation should be balanced throughout the growing season. A row of fruit trees, one side of the raft, the watering in the drought, the back of the tree (between rows) is not poured; if it has been high temperature for a month after half a month, then the second water is poured, the back is not watered; the third water is poured again. Do not pour back. Because only a part of the root is poured at a time, it can prevent it from drinking too much and causing a strip of water, and there is no shortage of water.
In a word: Under normal circumstances, the water in the first half of the year, the fertilizer in the second half of the year, and the drought in the sky.
Twist control can not be loose
Twisting is a mandatory measure of human control. If the branches grow arbitrarily, they will slant the tree shape, make the tree body closed, cover the sunlight, affect the formation of flower buds and the formation of high-quality flower buds, waste nutrients, affect the balance of the tree, and cause the trees to be virtual. The other twisting method is that when the branch length is 20 cm, it is twisted 180 degrees in the semi-lignin. The old one is when the branch grows to 15-20 cm, the back branch is horizontal, and twisted 60 degrees. For Wang Changzhi, on the basis of twisting, twist one or two times in the middle to promote flowering and no longer grow. This work must run through the whole process of summer management, insist on always, can't want to twist and twist, don't want to twist and twist. In short, high-quality flower buds strive to form before July. Cultivating high quality and full buds not only changes the light in the tree, but also balances the tree potential. More importantly, it lays the foundation for the high yield in the coming year.
Pulling angle å’‹ determines the angle according to the variety
For most varieties, I think it is better to pull the 90 degree level. Because the result is slightly drooping, if the branch is 120 degrees, the angle is too large after the result, and the illumination is not good. But for the short branch Fuji, short branch marshal, because the branches are hard, can pull 120 degrees. In short, the main branch of the flat is like the lieutenant of the building, and the side branches on the main branch are like. The shackles on the lieutenant will be stable if the structure is reasonable.
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