Areas needing attention and fertilization methods for planting cherry trees

Chinese cherry has weak cold resistance, likes warm and humid climate, and is suitable for central cultivation at 15~16℃ annual average temperature. Sweet cherries like to be cold and dry. The natural dormancy period of cherries is about 80 to 100 days. The chilling requirement for sweet cherry to complete dormancy is 1100~1300 hours below 7.2℃. Sour cherries require 1200 to 2500 hours. Therefore, today's small series sorted out a bit, to introduce you in detail how to plant cherries is good.

I. Precautions for cherry planting

1. First try planting and then develop

Big cherry likes warm, not cold, not drought, not waterlogging, afraid of strong wind, suitable for cultivation in areas with annual average temperature of 10℃~15℃. Practice has proved that when the annual average temperature is higher than 15℃, cherry often blossoms more and bears less fruit. The introduction and development of cherry should not only depend on the local annual average temperature, precipitation, sunshine, frost-free period and other factors, but also carefully analyze the local microclimate characteristics, try planting first, then develop.

2. Develop hard meat varieties with storage and transportation tolerance

At present, there are only a dozen varieties of cherry which have been cultivated and verified, and each variety has certain shortcomings. Such as our own cultivation of red light, it is a large fruit, bright color, juicy sweet, high and stable yield, but into the full fruit period late, thin fruit skin, soft meat, not suitable for processing and storage, only suitable for small area planting. In the future, cherry varieties with beautiful appearance, hard flesh, good quality, light crack, good storage and transportation resistance, fresh food and processing should be selected.

3. Heavy prevention of root cancer and virus diseases

The key to the success of cherry cultivation is to select good rootstock suitable for local cultivation. The most important thing is to see whether the rootstock is resistant to root cancer and whether there is virus disease. In the old cherry producing areas, the development of cherry must not use continuous cropping land, let alone continuous cropping land to cultivate cherry seedlings; in the newly developed cherry producing areas, on the premise of identifying improved varieties and good rootstocks, root cancer disease and virus disease should be strictly controlled.

4. Pollinate and thin fruit

Most large cherry varieties do not self-flower or have low seed setting rate and need cross-pollination. Some large cherry orchards with low yield in successive years and few fruit at appropriate age are not affected by freezing injury, but mainly due to unreasonable pollination tree configuration, poor flowering and poor pollination. Pioneer, Rabins, etc. are ideal pollinators. Also timely thinning out weaker fruit branches, remove smaller flowers, thinning out fruit shape is not correct, improper position of small fruit, abnormal fruit, each healthy fruit branch to leave 2~3 fruit is appropriate.

II. Scientific fertilization methods

Before winter, flowering and after harvest are three important stages of cherry fertilization.

1. Base fertilizer application in autumn

It should be applied in September to November, and it is better to apply it early, so as to exert fertilizer efficiency as soon as possible, which is beneficial to the accumulation of stored nutrients in trees. Fertilization, such as the use of organic fertilizer starter, the best organic fertilizer fermentation, can fully supplement the nutrition of cherry trees, promote the development of roots. It was proved that applying basal fertilizer in spring was unfavorable to cherry growth, fruiting and flower bud formation.

2. Topdressing at flowering stage

Cherry has more requirements for nutrition during flowering and fruiting. Sprouting and flowering need stored nutrition, fruit setting mainly depends on the nutrition of the current year, so topdressing such as gold organic fertilizer in early flowering stage has significant effect on promoting flowering, fruit setting and branch growth.

3. Topdressing after fruit picking

About 10 days after cherry harvest, a large number of flower buds began to differentiate, at this time is the new shoots close to stop growing period. The whole flower bud differentiation period is about (40~45) days. Fertilizer should be applied immediately after harvest. It is best to use fertilizer fermented by gold organic fertilizer starter.

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