In the process of fertilization, fruit trees often complement irrigation. Fertilization can provide nutrient basis for fruit sprouting, flowering, fruiting and fruit enlargement. Irrigation has important significance for alleviating drought conditions, promoting root absorption and regulating soil temperature. This version of the manuscript for fruit trees fertilization and irrigation knowledge for fruit farmers to explain, hoping to provide some help for the production of fruit farmers. Water before and after germination to flowering. At this time, there is a lack of soil moisture after wintering. Irrigation can promote sprouting and shoot growth, rapidly expand leaf area, enhance photosynthesis, and allow flower buds to continue normal differentiation, creating favorable conditions for flowering and fruit setting. In spring drought areas, full irrigation is more important during this period. Expanding water Shoot growth and watering of young fruit during the expansion. At this point, the physiological function of fruit trees is the most vigorous and is called the critical period of water demand. Because the general fruit tree does not inject water during the flowering period, when the fruit enlarges, it is often the time when the new shoot is vigorously growing. When the water is insufficient, the leaves compete for the moisture in the young fruit, and it is easy to cause fruit drop. In severe drought, the leaves will also compete for water in the root tissue, affecting the root absorption, resulting in weak fruit growth and low yields. The fruit rapidly inflated and watered during flower bud differentiation. The fruit left after the physiological fruit drop quickly expands, and the flower buds are largely differentiated. The contradiction of water contention still exists. At this time, watering can not only meet the fruit's need for water expansion, but also guarantee the need of flower bud differentiation, and create conditions for high yield in successive years. But this time, watering should master that “there is no need to pour the amount of water, and the water will only look at the situation, only promoting the function of the leaves, and not promoting the growth of the branches†because excessive watering will promote growth and affect flower bud differentiation. Watering before and after fruit picking and during dormancy After basal fertilization in autumn, it should be watered immediately so that the root system can resume its absorption function as soon as possible. Watering after falling leaves can effectively maintain the soil temperature, which is very beneficial for safe wintering. Watering involves many factors, such as tree species, canopy size, soil quality, soil, humidity, and irrigation methods. However, the general principle is that the most suitable amount of water should be in an irrigation system to make the water reach the main root mass distribution layer. And avoid pouring "ground water", especially when the temperature is low in the spring should pay attention to a drenching, so as to avoid multiple watering, causing soil compaction, soil temperature decreased. ZHEJIANG SHENDASIAO MEDICAL INSTRUMENT CO.,LTD. , https://www.shendasiaomed.com
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