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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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What are the taboos for applying ammonium bicarbonate? These methods cannot be used
Which methods cannot be used when applying agricultural ammonium bicarbonate? Please note that the following methods cannot be used when applying ammonium bicarbonate: 1. Foliar spraying: Ammonium bicarbonate is highly corrosive to crop leaves and easily burns them, so it cannot be used as a fertilizer for foliar spraying. 2. ...
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Which pesticides cannot be used in mulberry cultivation?
Which pesticides cannot be used in mulberry cultivation? We also ask knowledgeable readers to help explain. Using pesticides to control mulberry pests and diseases is one of the main methods with high effectiveness, fast action, simple application, fewer regional restrictions, and suitability for large-scale use. However, because mulberry leaves are the feed for silkworms, improper use of pesticides can also...
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Foliar feeding cannot be done at will; only by mastering the correct method can it be effective
Foliar topdressing of vegetables is a fertilization method in which fertilizer is dissolved in water and sprayed onto the leaf surface. This method is simple, convenient to apply, low in cost, quick in effect and high in benefit. It is especially suitable for topdressing trace elements and plays a positive role in increasing vegetable yield and quality, but it must be done scientifically and reasonably. 1. Fertilizer types...
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The hidden dangers of improper organic fertilizer application cannot be ignored
Compost is a widely used organic fertilizer in rural China, made by piling up various organic wastes such as straw, fallen leaves, wild grass, aquatic plants, green manure, peat, garbage, river mud, and human and livestock manure. It is divided into two types: ordinary compost and high-temperature compost. 1. Methods of making compost. 1. Ordinary compost:...
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To improve insecticidal effectiveness, these essential preparations cannot be skipped
For Chinese honey locust leaves, take 1.5 kg of fresh leaves, mash them, add 1.5 kg of water, filter out the residue, and keep the juice. For every 1 kg of juice, add 4 kg of water and spray; this can effectively control cotton aphids and red spider mites. For chinaberry leaves, take 0.5 kg of fresh leaves, mash them, add 3 kg of water, soak for half a day, and filter out the residue. Take the liquid and spray; it can control cotton aphids, red spider mites, cabbage caterpillars...
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Which fertilizers cannot be applied by flushing? Fertilization taboos every grower must know
Flush fertilization is widely used on greenhouse and open-field vegetables, mainly for topdressing during the vigorous growth period of vegetables. But not all fertilizers can be applied by flushing; only water-soluble fertilizers can be applied by flushing with water. For nitrogen fertilizers, urea, ammonia water, ammonium sulfate and ammonium nitrate are commonly used; for potassium fertilizers, potassium chloride and potassium sulfate are commonly used, and potassium nitrate can also be used for flush...
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Applying undecomposed organic fertilizer to fruit trees does much harm, and it cannot be ignored
Organic fertilizer is also called farmyard manure. In fruit tree production, the commonly used types include compost, pen manure, stable manure, green manure, cake fertilizer, river mud, poultry manure, human feces and urine, and miscellaneous soil manure. Most organic fertilizers need to be decomposed by microorganisms before they can be absorbed by the plant's root system, so they are also called "slow-release fertilizers" and can be applied as base fertilizer...
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Top-quality rock-clinging bonsai cannot be bought even with money; it truly opens your eyes.
Growing a rock-clinging bonsai you love is the goal in the hearts of many bonsai enthusiasts, but rock-clinging bonsai are also very particular to grow. If not grown well, it is hard for them to convey that kind of beauty. They are more time-consuming and labor-intensive to grow than ordinary bonsai, just like...
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This wild fruit looks like a cherry but cannot be eaten; it is a folk remedy for itchy skin.
In the past, as soon as summer came, it was the time for rural children to run wild, because in summer, all kinds of wild fruits in the countryside and mountain forests began to bear fruit or ripen one after another. For the rural children back then...
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