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A Detailed Explanation of Key Apple Tree Management Techniques in Midsummer
August is the peak period of flower bud differentiation and rapid fruit enlargement in apple trees, and also the peak period for the occurrence and development of pests and diseases; tree management during this period is very important, and the key management points are summer pruning, pest and disease control, topdressing, weeding and drainage.
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Key Technical Points for Autumn Management of Young Apple Trees
Young apple trees have relatively strong growth vigor but poor cold resistance. With poor management, they are prone to shoot shriveling after overwintering. In mild cases, growth is poor, the tree shape becomes disordered, and fruiting is delayed. In severe cases, the entire tree dies, causing missing plants and affecting orchard establishment. If autumn field management is strengthened to promote robust tree growth and well-filled, mature branches, overwintering ability can be effectively enhanced and dehydration shriveling can be prevented. The main autumn management measures are introduced below.
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Detailed Explanation of Key Techniques for Autumn Management of Apple Trees
The peak period of flower bud differentiation in apple trees occurs in autumn. Doing a good job of autumn management of apple trees can lay a solid foundation for high, stable and high-quality yields in the following year. Fertilizer and water management For non-bearing trees, 0.15-0.25 kg of diammonium phosphate can be applied per tree; for large bearing trees, according to the planned yield for the following year, 0.7 kg of pure nitrogen and 0.7 kg of available phosphorus can be applied per 100 kg of fruit. Topdressing for young trees can significantly increase the sprouting rate in the following year. For large trees in full bearing period, applying fertilizer in autumn year after year, under the same amount and types of fertilizer, compared with topdressing in early summer, can increase the yield by about 50 kg per tree.
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What are the fruit-setting measures for papaya trees? Introduction to key cultivation techniques
The purpose of fruit setting is to increase the fruit-setting rate and reduce flower and fruit drop. There are three main reasons for flower and fruit drop in papaya: first, the tree is not vigorous, showing either excessive or weak growth, and the tree body lacks nutrients, causing severe flower and fruit drop; second, poor pollination and fertilization, and the ovary lacks hormones
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What to Do About Low Fruit Set in Plums? Cause Analysis and Methods to Improve It
1. Regulating tree vigor For excessively vigorous trees, promptly remove buds and prune upright branches, and promptly open up the branch angles; alternatively, in autumn or spring apply 3-5 g of 15% paclobutrazol per tree, or spray 150-200 times diluted paclobutrazol or PBO after petal fall. For trees that are too weak, apply base fertilizer after harvest, and promptly apply topdressing and foliar fertilizer during the growing season.
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Winter pruning of plum trees must be done carefully and meticulously
Plum trees enter their full-bearing period 7 years after planting. The main task of winter pruning at this stage is to maximize yield per unit area and strictly control the formation of alternate bearing and bare zones at the rear. Winter pruning principles: Heavy pruning is the main approach, combining heavy and light pruning, to maintain the balance between growth and fruiting
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How to apply sufficient base fertilizer when planting plum trees
Currently most plum orchards have less than 1% organic matter, and some plum orchards are even below 0.5%, far below the requirements of high-quality, high-yield orchards, so the amount of base fertilizer must be increased. If the dual needs of tree growth and soil improvement are taken into account at the same time, the application rate of organic fertilizer
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Detailed Explanation of the Cleft Grafting Method and Top Grafting (Topworking) Technique for Plum Trees
1. Preparation before grafting: Generally in February, cut healthy, pest-free 1-year-old branches as scions. It is best to use fully mature, plump-leaf-budded, well-developed branches from the upper outer canopy of trees that have already fruited. Cut them into 15-20 cm segments (with 3-5 buds).
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How to Prune a Plum Tree? A Detailed Guide to Planting and Pruning Methods
I remember when I was a child, there were several plum trees in front of our house. Every year when the plum trees bloomed, they were especially beautiful. But with the continuous development of the rural economy today, the plum trees in front of our house are long gone, and now many fruit grower friends have started planting
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Detailed Explanation of Key Techniques for Summer Management of Plum Trees
1 Summer pruning 1.1 Bud rubbing and shoot removal. Removing buds immediately after they sprout is called bud rubbing; when the sprouted buds develop into tender shoots, cutting or pinching them off is called shoot removal. 1.2 Pinching. Pinching can be done when new shoots grow to 10~15 cm. The number of pinchings depends on the tree's vigor and requirements
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