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What technical principles should be followed when thinning flowers and fruit on pear trees?
Thinning flowers and fruit is, on the basis of winter pruning, the regulation of flowers and fruit on trees that still have too many flowers or have set too much fruit; this is a means of achieving a reasonable crop load; its main functions: first, to overcome biennial bearing and stabilize both yield and tree vigor; second, to ensure that the current year's fruit is large and uniform, so that every fruit left on the tree develops into a qualified, high-quality marketable fruit and few culls are produced; third, to form a sufficient number of flower buds for the following year's crop and maintain strong vigor. Trees that are not thinned or that carry an excessive fruit load very easily develop biennial bearing. The essence of biennial bearing is that the fruit
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Which six diseases should be prevented when keeping dogs in spring?
Spring is a period of high incidence for various dog diseases. Therefore, it is very important to do a good job in the prevention and treatment of dog diseases in spring. Specifically, the prevention and treatment of the following six diseases should be carried out well. 1. Rabies Rabies, commonly known as mad dog disease and hydrophobia, is an acute, contact zoonotic disease caused by rabies virus, mainly invading the central nervous system. Preventive measures: The principle of prevention is mainly to do a good job in "prevention, inspection, elimination, and treatment." 1. Prevention: Make sure vaccination is done well. Dilute each bottle of vaccine with 10 ml of sterile water. After fully dissolving, inject 1 ml subcutaneously or intramuscularly into each dog.
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How should you plan a puppy's diet? A scientific feeding guide for young dogs
Before a dog has fully matured, it should continue to be fed on a growth-stage diet. It needs this highly nutritious food to complete its development and consolidate the growth of its muscles, bones and other organs. When it approaches the weight and size of an adult dog, you can gradually switch it to adult dog food. By the time it is 6 months to 2 years old (depending on the breed), it will have fully grown. Before that, it must become accustomed to adult dog food. A puppy feeding chart will tell you when puppies of each breed should start being fed adult dog food. This kind of
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Chestnut gall wasps need targeted control this year, and chestnut growers should pay attention
The chestnut gall wasp, also known as the chestnut tumor wasp, is a major insect pest damaging chestnut trees. It occurs almost every year in chestnut-producing areas in China, but this year the outbreak is especially severe. Large trees, especially old unpruned trees, have reached a 100% damage rate. Controlling the chestnut gall wasp brooks no delay. The chestnut gall wasp has one generation per year and overwinters as first-instar larvae inside infested chestnut buds. In the Yanshan mountainous area, overwintering larvae begin to move and feed during the bud-break period in mid-April and grow rapidly. In early May, during the shoot-sprouting and leaf-unfolding period, galls begin to form. The galls are mostly at the tips of new shoots or
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How should the four common bean diseases be prevented and controlled?
1. Root drowning: Beans prefer moisture and tolerate drought but not waterlogging. Therefore, on the basis of ridge cultivation, small amounts of water should be applied to avoid water accumulation in the field, which prevents the roots from breathing and causes plant death. Control measures: Avoid flood irrigation. If there is heavy rain, drain the water promptly. After the weather clears, if conditions permit, appropriate shallow hoeing can be done to increase soil permeability and improve root vitality. 2. Phytophthora blight: It mainly damages the stems and vines, and sometimes the leaves and pods are also affected. It constricts at the base of the stem, causing the upper part to wilt and die. When humidity is high, white mycelium is produced on the diseased part.
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Winter pruning of goji berry is timely now; growers should not miss the farming season
After a year of growth, the goji berry tree has numerous branches and a messy canopy, and while new fruiting branches form, some fruiting branches have already begun to age. Therefore, goji berry must be pruned in winter, otherwise the yield and quality of the following year will be affected. Through pruning, out with the old and in with the new, selecting and retaining the old-eye branches and seven-inch branches with strong fruiting capacity, and cutting off non-productive branches, can lay a good foundation for the old-eye branches to bear fruit and grow new fruiting branches the following year. Top cutting: for ease of management, the tree height needs to be controlled by top cutting. Generally, tree height should
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How should goji berries be harvested during cultivation?
Harvesting methods for goji berries: After goji berries are planted from cuttings, harvesting can generally begin in 50 to 60 days. First harvest the vigorously growing branches and leave the remaining young branches to continue growing. When the newly grown branches reach about 40 to 50 cm, and before the leaves at the base age, cut the tender branches at the base. New tender shoots can grow again from the axillary buds at the base, and thereafter they can be harvested in several rounds. After summer begins, when the temperature rises above 25 degrees Celsius, it is unfavorable for the growth of branches and leaves, so fertilization and watering should be stopped to inhibit growth and carry the plants through the summer. After the weather turns cool in autumn, growth continues, and harvesting
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What issues should be paid attention to in the management of single-season rice and other field crops
In the past week, the weather has continued to be hot with strong sunlight, field evaporation has been very high, and some rainfed fields have already experienced water shortage and drought. In the management of single-season rice and other field crops, attention should be paid to the following issues: 1. Spraying for disease and pest control should be done in the morning and evening, and sufficient water should be used. At present, it is the suitable period for controlling the fourth (2) generation leaf roller and rice planthopper of single-season rice. When selecting appropriate pesticides for control, the spraying time should preferably be before 8 a.m. or after 5 p.m., avoiding the high-temperature and strong-sunlight period as much as possible, and sufficient water should be used
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What issues should be noted when harvesting edible mushrooms
1. Harvest at the right time. When edible mushrooms are 70-80% mature, they look beautiful and taste good. Take shiitake mushrooms (Lentinula edodes) as an example: the sign of 70-80% maturity is that the partial veil has broken, the cap has not yet fully opened and still curls inward slightly, forming a "gong rim"; the gills have fully extended and turned from white to yellowish-brown or dark brown. This is the suitable harvest period for shiitake mushrooms. 2. Pay attention to picking technique. When picking edible mushrooms, all stemmed mushrooms, such as shiitake, straw mushrooms, oyster mushrooms, and bamboo fungus (Phallus indusiatus), must be picked according to the principle of picking the large and leaving the small. When picking, pinch the base of the mushroom stem tightly with your thumb and index finger,
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After spring tea harvesting, attention should be paid to summer management of the tea garden.
After spring tea harvesting is finished, summer tea garden management work should be done promptly. 1. Fertilize in time. Apply 15-20 kg of urea per mu, or 25 kg of Zhongcha No. 1 fertilizer. Do not apply compound fertilizer with a high proportion of phosphorus and potassium, otherwise it will accelerate the reproductive growth of tea plants. During midsummer, carry out foliar topdressing. 2. Cultivate and weed. After June, apply chemical weed control once every 25 days. Commonly used herbicides include 10% glyphosate and 25% paraquat aqueous solution, etc. In July, deep-plow the tea garden once, which can both
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