In early autumn (mid-August to late September), basal fertilization is the second (fruity) or third (fruiting) growth peak of the fruit tree root system. The root regeneration ability is strong, and roots with a diameter of 1 cm or less are fertilized. In the next 20 days, new roots will be released to absorb soil nutrients and water, which will help fruit trees safely pass winter. In early autumn, the soil temperature is suitable, the soil moisture is high, the microbial activity is strong, the decomposition of manure is fast, the mineralization degree is high, and it is easily absorbed by the root system, especially for the flowering and fruit setting of the fruit trees in the following spring. In the early autumn, the fruit tree has basically stopped growing. After applying basal fertilizer, the quick-acting part can be absorbed and utilized by the root system. It not only enhances the function of the leaves, but also stores most of the photosynthetic products in the tree body, enriching the tissues and flower buds. Fruit trees are safe for winter. At the same time, in the spring of the following year, fruit trees germinate early, leaves grow fast, and the leaves are large and thick. Photosynthesis is strong, and the nutrient exchange period is not obvious, which is conducive to flowering, fruit setting and flower bud differentiation of fruit trees. The delayed part of basal fertilizer, after autumn, winter, and spring, is also partly converted to nutrients that can be absorbed by the roots of fruit trees. In the spring, it can exert its fertilizer effect, which is conducive to flowering, fruit setting and spring shoot growth of fruit trees. Practice has proved that early autumn basal fertilizer effect is obvious, flowering time can be two days in advance, 1 to 2 pods accounted for 98%, flowering concentrated, easy to pollination, fruit setting rate as high as 73.2%, while the late autumn base dressing rate of only 24.7%. Lactobacillus Bulgaricus,Lactobacillus Bulgaricus Probiotic,Lactobacillus Bulgaricus Supplement,Lactobacillus Bulgaricus Bacteria Jiangsu Biodep Biotechnology Co. ,Ltd. , https://www.mbioda.com