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When is the best time to harvest sweet potatoes? Master the four key points of timely harvesting
Many farmers believe that growing sweet potatoes does not require fertilization, but this is actually a misconception. Only by mastering the correct fertilization methods can sweet potatoes be grown with high quality and high yield. Look at the seedling condition: during the branching and tuber-setting stage, the underground root network forms, the tubers begin to swell, and the ability to absorb fertilizer is strong. At this time, the sweet potato leaf area increases and photosynthetic efficiency rises...
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Detailed Explanation of Fertilization Techniques for Persimmon Orchards: Master Scientific Fertilization Methods
The main cultivation and management techniques are: 1. Implement the "Three Improvements" 1.1 Improve the orchard site: The vast majority of mature mountain persimmon orchards have terraces with no ridge in front and no ditch behind, and the terrace surface is low in front and high in back, causing severe soil and water erosion and exposed root systems. To improve the orchard site, the terrace surface of the persimmon orchard should be shaped with a ridge in front and a ditch behind, with the front ridge 10-15 cm high...
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How to prevent and control weeds in rapeseed? Master the occurrence characteristics and control methods
The amount of nitrogen, phosphorus and potassium absorbed by rapeseed is nitrogen greater than potassium, and potassium greater than phosphorus. For every 1000 kg of rapeseed produced, it needs to absorb 2.76 kg of nitrogen, 0.33 kg of phosphorus and 2.06 kg of potassium. The absorption ratio of nitrogen, phosphorus and potassium is 8.38:1:6.24. A deficiency of the trace element boron will produce boron deficiency symptoms. Rapeseed plants...
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How to prevent and control peanut bacterial wilt? These methods must be mastered
The period of peanut flowering and peg penetration is the outbreak period of peanut bacterial wilt, and during this period attention should be paid to spraying for control. Control method: when peanuts begin to show buds, spray the leaf surface once every 10-15 days with a 1500-fold 70% hymexazol aqueous solution, or a 600-fold 20% thiodiazole-copper aqueous solution, evenly wetting all leaves, until water droplets begin to...
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How to fertilize water spinach? Master these methods for high yield and good quality
Water spinach (Ipomoea aquatica) is not strict about soil, but soil that is rich in water and nutrients and has strong water- and fertilizer-holding capacity is more favorable. Water spinach grows vines and leaves rapidly, has a high nutrient demand and strong tolerance to fertilizer. With sufficient fertilizer and water, high quality and high yield can be achieved, but seed-production plots should have fertilizer and water controlled, otherwise the plants easily grow leggy and fail to flower. The base fertilizer for water spinach is mainly farmyard manure and dung...
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How to control aphids on rapeseed? These technical points need to be mastered
Aphids, commonly known as greasy bugs, are the main insect pest of rapeseed in Linxiang District, occurring in all major rapeseed-producing areas; when drought is severe in winter and spring, the pest is heavier in plots lacking irrigation conditions. Aphid damage mainly occurs from the bolting stage to the maturity stage of rapeseed, and untimely or improper control can cause a certain amount of yield loss. 1. Rapeseed aphids...
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How to prevent and control pests and diseases in early spring eggplant? Key technical points to master
For eggplant seedlings raised in early spring, the main focus is preventing and controlling soil-borne diseases: damping-off, rhizoctonia rot and sclerotinia rot. For seedbed soil disinfection, mix 50 kg of seedbed soil with 20 g of 68% Jinlei water-dispersible granules and 10 ml of 2.5% Shileshi suspension concentrate, sift the soil and mix well, then fill nutrient pots, or spread it over the seedling bed. During the seedling stage, spray 0.1%-0.2% monopotassium phosphate...
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How to manage cotton during the boll-opening stage? These key points you need to master
Key management points for cotton during the boll-opening stage
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How to grow strong rapeseed seedlings? Master these key seedling-raising techniques
The rapeseed white butterfly, scientific name Artogeia (Pieris) rapae (Linnaeus), belongs to Lepidoptera, Pieridae. Synonym Artogeia rapae (L.). Also known as the cabbage white butterfly, white butterfly. The larva is called the cabbage caterpillar. It is distributed throughout the country. Its hosts include rapeseed, cabbage, cauliflower, Chinese cabbage, radish and other cruciferous vegetables...
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Spring cucumber planting is all about management: master the key technical points to boost yields
Cucumber is one of people's favorite vegetables. It contains various sugars, free amino acids, vitamins, cucurbitacin, and calcium, phosphorus, iron, and more. Among these, cucurbitacin has anti-tumor effects. Cucumber also has the effects of clearing heat and promoting diuresis, detoxifying, and relieving sore throat and heat-related abdominal pain. Cucumbers are generally planted at 3500 plants per mu, with a yield of 5000-8000 kg per mu...
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