What are the soil testing formulas and fertilization methods for cherry trees?

Cherry is a kind of fresh fruit that many people like to eat. It's healthy, but it won't be so easy to plant cherry trees, especially fertilization and watering. We must attach importance to it. So what kind of chemical fertilizer does the cherry tree apply? How to fertilize cherry trees? I'll show you!

Which fertilizers are good for cherry trees?

Cherry trees grow and develop rapidly, and the growth and development stages are significant and concentrated. The growth of branches, flowers and fruits is concentrated in the first half of the growing season, and flower bud differentiation is mostly carried out in the short term after fruit picking. It takes about 50 days for cherries to bloom and pick, and about 60 days for sweet (big) cherries. Therefore, it is necessary to apply fertilizer as early as possible according to the characteristics of cherry, and do a good job in basic fertilizer, chemical fertilizer and post-fruit fertilizer. Generally speaking, the amount of base fertilizer should be less, the proportion of phosphorus and potassium fertilizer should be larger, and the amount of organic fertilizer should be more.

Base fertilizer should be applied early in autumn, no later than 165438+ 10, and ring fertilizer, human and animal urine and soil cake fertilizer can be used. 30 ~ 60 kg or100 kg of human and animal feces; Applying ring fertilizer during tree pruning and initial fruit-bearing period; Adult trees should be applied with 60-80 kilograms of human and animal manure or 200 kilograms of manure.

Fertilization time is long before flowering or fruit 1 time, and base fertilizer is the main fertilizer, which can improve the fruit bearing rate, promote the growth and development of branches and leaves, and lay a good foundation for flower bud differentiation. If 1 ~ 2 times of 0.5% urea solution is sprayed on the leaves at the early flowering stage, and 0.5% boron fertilizer or 600 times of potassium dihydrogen phosphate is added, the fruit setting rate can be improved.

Topdressing the fruit and then topdressing can improve the nutritional composition of trees and promote the differentiation of flower buds. After peach picking, the consumption of flowering and fruiting, branches and leaves changed into the accumulation of nutrients, and gradually entered the deterioration period of flower bud differentiation. Therefore, the types of supplementary fertilizers are mainly fertilizers, such as manure, bean cake and organic fertilizer. Fertilization amount can be determined according to crown diameter, trunk size and its results. Generally, one plant is applied with 60-80kg of manure, 2.5-3kg of compost bean cake, 65,438+2.5-3kg of ammonium sulfate or 0.5-65,438+0kg of urea solution. You can also spray it on the leaves.

How to fertilize cherry trees

The rootstock of cherry is characterized by no rhizome, and a large number of roots and hairy roots are distributed 20 ~ 30 cm underground. Therefore, it is very important to scientifically study fertilization and apply fertilizer 3 ~ 4 times a year.

The first fertilization in a year should be carried out within 65,438+00 days after fruit picking, so that trees can grow and develop. Fertilization amount should not be too large. Each tree (the crown diameter is about 10 years) is applied with 2Kg of Nobon earthworm biological bacterial fertilizer, balanced compound fertilizer 1kg, and sprayed with 2000 times of liquid fertilizer on the leaves.

From September to 65438+ 10, the city was fertilized for the second time. During this period, trees are full of life activities and have strong ability to digest and absorb nutrients, which is conducive to slowing down the aging of trees, improving the ability of photosynthesis and laying the foundation for years of bumper harvest. Fertilization should account for 50% ~ 60% of the annual consumption, and each tree can produce 3Kg of Shennuobang earthworm biological bacterial fertilizer, 2Kg of nitrate-sulfur compound fertilizer and 0/kg of flowers and fruits/kloc. This fertilization should be carried out by ditching, and the deep layer should be 15 ~ 20 cm.

The following spring, the cherry was fertilized for the third time before flowering, mainly by basal fertilizer. During this period, cherry trees carried out a series of theme activities, namely flowering, growing leaves and spreading branches, which consumed nutrients quickly. Need to supplement some nutrients properly, dry with Guocai No.1, and spray 2000 times Cuikang Huaguoling on the leaves.

Cherry (cherry soybean size) can be fertilized for the fourth time during the large coloring period, with polycationic green ecological fertilizer 15kg, Cuikang flushing liquid 2Kg, and foliar spraying 1000 times CuiKang Sheng liquid.