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What to Do If a Pear Tree Does Not Bear Fruit? A Detailed Guide to Practical Technical Measures
1. Avoid excessive application of nitrogen fertilizer. Some farmers grow sweet potatoes between their pear trees; they grow sweet potatoes to cut the vines to feed pigs, so they frequently pour pig manure, and the pear trees grow tall and large but bloom without bearing fruit. For this type of pear tree, nitrogen fertilizer application should be stopped and phosphorus and potassium fertilizers increased; apply potassium dihydrogen phosphate by trenching at the drip line of the canopy and by spraying the canopy.
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What should you pay attention to when introducing pear tree varieties? Remember these four points
In recent years, in the course of agricultural structural adjustment, Haimen City, Jiangsu Province, has taken pear tree cultivation as an important lever for becoming prosperous, promoting the planting of more than 8,000 mu of high-quality pears and achieving good returns. In pear tree cultivation, variety introduction is key. According to the experience of Haimen City, pear tree introduction should
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How to prevent and control silver leaf disease in pear trees? Growers need to master these methods
In recent years, silver leaf disease has commonly occurred in pear trees in some areas of our city. This disease is a devastating fungal disease, and when it occurs severely, it can cause pear orchards to decline within a few years. After becoming diseased, pear trees weaken in vigor. Yield decreases, and severely diseased trees die 2-3 years later, seriously affecting pear production
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What measures are there to improve the fruit-setting rate of pear trees?
1. Protecting flowers and protecting fruit They are two technical measures with completely different meanings, but their purpose is the same: to improve the fruit-setting rate. Only when these two measures are skillfully combined on the same tree can it be ensured that the tree bears enough fruit for a good harvest. Protecting flowers and protecting fruit is by no means a matter of the flowers on the tree
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How is the reasonable crop load of pear trees determined?
Under normal management and moderate crop load conditions, the flower quantity of mature pear trees is generally excessive; some trees even have a flower-branch rate of 70-80%, bearing flowers all over the tree. Although abundant flowers are the foundation of a high yield, excessive fruit set will lead to a large amount of fruit drop and small fruit, and fewer flowers the following year, resulting in alternate bearing. Even with sufficient fertilizer and water, excessive fruit set cannot be allowed. Therefore, pear trees must be controlled to carry a moderate crop load. There are many methods for determining a reasonable crop load. Among them are cultivation experience and numerical indicators. For example, according to the planned yield per unit area, divide the load among individual trees, then calculate the number of fruits each tree should retain based on single-fruit weight, and distribute this among the major limbs; retain 1 fruit per several new shoots so that fruits are evenly distributed among branches; retain 1 fruit per a certain number of leaves, and calculate the number of fruits to retain and their reasonable distribution; retain fruits according to their distribution distance in the canopy; retain fruits based on the single-fruit weight and size of the pear, using experience to guide retention - if fruits were small last year, retain fewer this year; if fruits were too sparse and too large last year, retain more this year; year after year, research has also proposed retaining fruits according to trunk cross-sectional area, which is suitable for young bearing trees. The reasonable crop load is affected by many factors such as cultivation conditions and quality requirements. Its indicators for reasonable crop load should be adjusted in a timely manner. For example, with the development of the market economy, the quality requirements for pears have increased, and the price difference between grades has widened; producing more small fruits is not as good as producing fewer large fruits. For Yangxin Yali pears, pear growers previously demanded a yield of 5000 kg per mu, but now demand a yield of 4000 kg of high-quality fruit per mu. This is because producing 4000 kg of high-quality fruit is more profitable than producing 5000 kg.
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The Harm Caused by Mulberry Longhorn Beetles to Fig Trees and How to Control Them
Figs are not only easy to propagate and cultivate, but also a treasure among fruits and medicines. Figs have thin skin and no seeds, are sweet and soft as honey, with a rich fragrance, a unique flavor, and abundant nutrition. They contain large amounts of vitamin A and C, as well as a variety of organic acids and more than 17 kinds of amino acids. Vitamin C content
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How to control longan trees after they are infected with eriophyid mites?
Longan (scientific name: Dimocarpus longan Lour.), also known as guiyuan or yizhi, is a large evergreen tree with a tall trunk. The fruit is harvested when it ripens and turns yellowish-brown in July to August. It belongs to the Sapindaceae family; the fruit can be eaten fresh or processed into dried products, and the flesh, seed, peel and root can all be used
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Detailed Explanation of the Top-Grafting and Variety-Conversion Method for Chestnut Trees and Post-Grafting Management
Chestnut (scientific name: Castanea mollissima), also known as li, chestnut, chestnut seed, and fengla, is a plant of the genus Castanea in the family Fagaceae. It is native to China and distributed in Vietnam, Taiwan, China, and the mainland region of China. It grows in areas at an altitude of 370-2800 m, is mostly found in mountainous areas, and has been widely cultivated by humans.
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Analysis of the Causes of Low Fruit Set in Apricot Trees and Solutions
Apricot tree (scientific name: Armeniaca vulgaris Lam.) is a deciduous tree, terrestrial, with hairless plants. Leaves alternate, broadly ovate or round-ovate, with rounded blunt serrations on the margins; flowers solitary, white or slightly red; fruit nearly spherical, mostly white, yellow to yellow-red, often with a red blush; seed kernels
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Management of Apricot Trees in Greenhouses During the Growing Season and Pollination Precautions
Apricot (scientific name: Armeniaca vulgaris Lam.) is a deciduous tree. It grows on the ground, and the plant is hairless. The leaves are alternate, broadly ovate or round-ovate, with bluntly serrate margins; near the apex of the petiole there are two glands; the pale pink flowers are solitary or 2-3 together, white or slightly red. Round, oblong
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