On a daily basis, the temperature is almost over 30 degrees, the temperature is high, the soil moisture is evaporated, the soil is prone to lack of water, and watering, which not only increases the investment cost, but also affects the development of flowers, no watering, and soil shortage. Not only is it not conducive to fruit growth, but also not conducive to flowering.
Practice has proved that the soil of the orchard with grass is drought-tolerant.
Professor Shuai Ruirui, a famous national fruit tree professor, said: “A 25-year-old fruit tree, transpiration 21 tons of water per year, evaporates 48%, and transpiration 52%.â€
Evaporation refers to evaporation of soil, and transpiration refers to transpiration of leaves.
The grassy orchard, because of the shelter of the grass, the sun is not directly exposed to the soil, and the water evaporates slowly.
The same high temperature and drought, no grass orchard, the soil is dry, but there are grass orchards, the soil under the grass is still wet.
In the production practice, it was also found that the orchard in the grass has a cool feeling in the garden, but in the clearing garden, or the orchard after mowing, people obviously feel hot in the orchard.
It has been tested that grassy orchards are 2 degrees cooler than clearing or gardening orchards.
Many grassy orchards, some people have no grass for bagging, easy to walk, cut the grass to the ground before bagging, not only the orchard temperature is high, but the soil is obviously lacking, but the orchard without mowing before the bag, not only the orchard The temperature is low and the soil under the grass is still very wet.
Therefore, it should not be mowing before bagging every year. Pay attention to the weather forecast for the next ten days and a half. The temperature is not too high and can be cut. The high temperature can not cut grass or cut off malignant grass such as gray bar. Even if you want to cut grass, you should keep it 3 inches high to protect the ground from direct sunlight.
Every year from late June to July is the three hot days, the hottest time of the year. The grass in the orchard is equivalent to giving the soil a green "tent", which can reduce the evaporation of soil water and reduce the watering of the orchard. The number of waters, so try not to cut the grass of the orchard in the three days, which is equivalent to giving the orchard an air conditioner, and can prevent the young fruit from burning.
Orchard grass can increase soil organic matter, many people know, but for more than 20 years, the grass orchard soil organic matter is not high, and the grass in the orchard is getting less and less, why?
It was discovered in the thousands of households orchards that the grass in the orchard was cut too hard and too early. There are few grass tender fibers, and there is almost no organic matter after the grass is dried. There are no seeds cut off in the grass, so there are fewer and fewer grasses in the orchard. Of course, the soil organic matter in the orchard is difficult to improve.
Therefore, the number of mowing can not be too much in a year, too diligent, and the grass is old, and there are grass seeds to cut grass. This way the grass will be cut more and more.
In fact, there are still many benefits in orchard grass:
1. How deep the grass roots are, how deep the water can see when watering.
2. After the death of grass and grass roots in autumn, it can increase soil organic matter.
3. There is a gap left after the death of the grass root, which can increase the permeability of the soil.
4, the orchard of the grass, three days, the soil temperature is relatively low 6.7 ~ 7.6 degrees, which is conducive to root growth.
5, three days, after the watering of the Qingneng Garden, the soil will dry soon, but the orchard of the grass, after the watering, because of the deep water seepage, plus the grass to block the sun, the long-term protection.
6. The orchard of grass can reduce the occurrence of diseases. It has been tested that the fruit weight increased by 10.2%, the hardness increased by 9.2%, and the soluble solid content increased by 35.5% after 6 years of grass.
7, the orchard of grass, soil microbes, which is conducive to the decomposition of various mineral fertilizers.
However, everything has two sides. Grassy orchards, grass roots will also compete for nutrients in the shallow roots of fruit trees. Therefore, for the grass in the Wangshu Orchard, the control is prosperous and the effect is obvious. For the normal result tree, we must control the growth of malignant grass before June to prevent grass and shoot growth from competing for nutrition. It is worth noting that the grass orchard is more drought-tolerant than the clear-growing orchard, but it is only a few days old for drought. This watering has to be poured, don't go to extremes.
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