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What are the methods for preventing and controlling pests and diseases of jujube trees in autumn and winter?
Please introduce the methods for preventing and controlling pests and diseases of jujube trees in autumn and winter? Detailed operation methods would be best. For the methods for preventing and controlling pests and diseases of jujube trees in autumn and winter, you can refer to the following methods: 1. Clean the orchard: Pests and diseases such as jujube rust, green plant bug, and jujube slug moth overwinter in fallen branches, leaves, or weeds under the trees. Therefore, after the jujube trees shed their leaves...
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Why Doesn't the Jujube Tree Bear Fruit? An Analysis of Causes and Management Methods
Why doesn't the jujube tree bear fruit? Please explain the causes. The main reasons a jujube tree fails to bear fruit are the following three: Reason one why a jujube tree fails to bear fruit: excessive tree vigor. Solution: During the full flowering period of the jujube tree, perform ring barking (girdling) at the base of the main branches, cutting deep to the xylem, with a width of about 0.5 cm - roughly, however thick the bark is, that is how wide to cut....
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What are the key points of jujube tree pruning and pinching technology?
How do you pinch jujube trees? How many rounds should jujube tree pinching be divided into? Please explain in detail. Pinching jujube trees can mainly effectively reduce unnecessary vegetative growth of jujube trees, save nutrients, ease the contradiction in nutrient allocation between growth and fruiting, and promote reproductive growth. Second, it can effectively improve the light conditions within the canopy and increase the photosynthetic...
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How to Preserve Flowers and Fruits on Jujube Trees? A Detailed Guide to Practical Management Techniques
How to preserve flowers and fruits on jujube trees? Please provide guidance on methods. Jujube trees generally have a high self-fruitfulness rate and do not need pollinator trees, but they suffer from severe flower and fruit drop and low yields, so management should be strengthened during the flowering and fruiting period. For detailed methods, refer to the following list: 1. Trunk girdling. At a distance of 10-20 cm from the ground on the trunk...
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How to fertilize pear trees for good growth? A detailed guide to fertilization methods
How to fertilize pear trees for good growth? Please give an introduction. The life of a pear tree goes through several main growth stages: the young tree first-fruiting stage, the full-fruiting stage and the aging stage. At different growth stages, the fertilizer required differs. 1. Young tree first-fruiting stage: In early spring, a nitrogen-based fertilizer should be applied as a top dressing. After early summer, when new shoots stop growing, flower buds begin to differentiate and the fruit begins to swell, a phosphorus- and potassium-based fertilizer should be applied as a top dressing. After harvesting the fruit in autumn, a base fertilizer should be applied once more. 2. Full-fruiting stage: After bud break and before flowering, apply a nitrogen-based fertilizer once as a top dressing. From late June, when the fruit begins to swell, until just before harvest, root-zone top dressing (foliar spraying) should be carried out, and nitrogen, phosphorus and potassium fertilizers should be applied together during top dressing. After the pear fruit is harvested, the tree enters a recovery stage, and during this period the base fertilizer should be applied early. 3. Aging stage: After decades of growth and fruiting, the pear tree enters the aging stage, and four top dressings and one base fertilizer are applied throughout the year (an average of 250-500 kg of barnyard manure per tree each year).
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Pear tree cultivation: What methods can make pears larger and increase yield?
What methods can make pears larger and increase yield? Please provide guidance. To make pears larger and increase yield, you can refer to the following methods for planting: 1. Improve the traditional tree shape. Most high-density pear orchards use the inverted herringbone shape or the double-layer open-center shape with a central leader, which is suitable for Dangshan pears. However, because early-maturing series varieties have a low branching rate...
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Which methods cannot be used for summer pruning of pear trees?
Which methods cannot be used for summer pruning of pear trees? Please introduce and guide the cautious use of the following three methods in summer pruning of pear trees: tip pinching, which is pinching off the tender tip at the top of the current year's new shoot that has not yet stopped growing, at the point where 2~3 leaves have unfolded; shoot clipping, which is cutting off the upper part of a new shoot that has not yet stopped growing and has exceeded the length that should be retained and has already become woody, and this method is still in use; shoot twisting, which is done from late May to early July, taking a semi-woody new shoot more than 40 cm long, gently kneading it soft at 8~12 cm from the base, then twisting it 120°~150°, so that the inner wood tears but does not break, and the outer bark bends but does not split, then bending the upper part to change the growth direction of the branch.
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How should pear trees be pruned in summer for the best results?
How is summer pruning of pear trees done well? Who can explain the method? For pruning pear trees in summer, you can refer to the following method: I. Characteristics of pear tree branch growth. 1. The new shoot growth period of pear trees is short and has obvious stages. Long shoots stop growing before early to mid-July, while medium and short shoots stop growing before early to mid-May....
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What should be noted when growing pear trees in summer?
What should be noted when growing pear trees in summer? Please go through them one by one. When growing pear trees in summer, the following main points need attention: 1. Soil, fertilizer and water management. The principle of fertilizer and water management for pears is to increase fertilizer and water in the early stage and control growth in the later stage. Before July, increase fertilizer and water to promote branch growth and young fruit development. After July, apply compound fertilizer, one...
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How to manage pear trees in summer? Detailed explanation of key technical points
How to manage pear trees in summer? Here are the methods. Summer is the period of the year when pear trees have the greatest amount of vegetative growth and grow the fastest, and it is also the period when pear trees are most affected by external conditions. Summer management of pear trees can be carried out with reference to the following methods: Soil, fertilizer and water management. Fertilizer and water management. In July, after the early-maturing varieties are harvested...
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