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The key "three waterings and three fertilizations" technical points for garlic cultivation
Water and fertilizer management after garlic turns green is the key to a bumper garlic harvest. As the weather warms up, water and fertilizer uptake gradually increases after greening, especially during the bolt-bearing stage and the bulb swelling stage, which are the peak periods of water and fertilizer demand for garlic. Therefore, throughout the entire growth period of garlic, timely watering and topdressing should be carried out according to soil moisture conditions and soil fertility and seedling conditions, with special emphasis on doing well the "three waterings" and "three fertilizations." 1. Water the greening water well and apply the greening fertilizer well. By the Spring Equinox, the garlic seedlings begin to turn green and grow. Because the early spring soil temperature is low, it is best to water the greening water at noon
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Key Technical Points for Foliar Fertilization of Cotton to Prevent Premature Senescence
In the late growth stage of cotton, root activity gradually declines and the ability to absorb water and nutrients weakens accordingly. Adopting the method of spraying fertilizer solution promotes the absorption and utilization of nutrients by cotton, extends the functional period of leaves, improves root activity, and increases boll weight. As for the concentration of the fertilizer solution, urea is best at 1%, adding 0.5 kg of urea to 50 kg of water; potassium dihydrogen phosphate and superphosphate are best at 1%-1.5%. Superphosphate should first be soaked for 24 hours; after the impurities settle, slowly pour out the clear liquid, dilute with water, and then spray. At the same time, Tianfengsu or Shuofeng 481 may be appropriately added, which can
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Detailed Explanation of Key Fertilization Techniques for Lilies and Roses
Ms. Xi from Quanjiao, Anhui, asks: I grow lilies for their bulbs. How should I fertilize them to achieve high quality and high yield? Expert: Lilies are perennial plants and should be given heavy applications of organic fertilizer. The seedling stage is relatively long, so organic fertilizer should be the mainstay, reasonably combined with nitrogen, phosphorus and potassium chemical fertilizers. First, choose a sandy loam soil with deep soil layers and good drainage. Before planting, in conjunction with deep plowing and soil preparation, apply 2000-3000 kg of decomposed organic fertilizer, 10 kg of urea, 20-30 kg of superphosphate, and 10-15 kg of potash fertilizer per mu. Topdressing is divided into three applications, applied in conjunction with shallow plowing and weeding
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How to Prevent Cold Damage in Rice? Detailed Explanation of Fertilization Measures
Fertilization case: In 2006, in rice-growing areas such as Shangzhi City, Heilongjiang Province, during the early stage of rice growth, some rice seedlings encountered low-temperature weather below 17°C, and rice cold damage problems of varying degrees occurred. In the rice-growing areas of Ningxia and Zhangjiakou, Hebei in the northwest region, in autumn during the late stage of rice growth, just at the grain-filling stage, the temperature suddenly dropped below 20°C, causing rice to suffer cold damage, which was very unfavorable for grain filling, and the seed-setting rate decreased by 10-20%, with severe cases decreasing by more than 50%. Expert comments: In northern rice-growing areas, in order to defend against the cold damage problems brought to rice production by low-temperature weather
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Key Technical Points for Fertilization in the Production of Pollution-Free Fruit
1. The use of organic fertilizers, commercial organic fertilizers, and microbial fertilizers is encouraged. On the premise that chlorine-containing compound fertilizers and nitrate nitrogen fertilizers are prohibited, chemical fertilizers are permitted to be used according to the following two principles. (1) Chemical fertilizers must be applied in combination with organic fertilizers, and the amount of inorganic nitrogen applied should not exceed the amount of organic nitrogen used. (2) Chemical fertilizers may also be applied in combination with organic fertilizers and compound microbial fertilizers, with the formula being 1000 kg of barnyard manure, 5-10 kg of urea or 20 kg of diammonium phosphate, and 60 kg of compound microbial fertilizer; the final topdressing must be carried out 30 days before charging.
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How to Fertilize Lilies: Master the Key Points of Scientific Fertilization Techniques
Lilies are perennial herbaceous plants of the Liliaceae family. They are mainly produced in Henan, Hubei, Hunan, Jiangxi, Zhejiang, Guangdong, Guangxi and other provinces (autonomous regions). The medicinal part is the bulb. Lilies prefer cool conditions and are relatively cold-tolerant; they prefer dry conditions and fear waterlogging; they are strongly shade-tolerant, but prefer light during the budding and flowering stage; they prefer deep, fertile sandy loam and have a relatively strong tolerance for fertilizer. Key points of fertilization techniques: For base fertilizer, apply 3000-4000kg of barnyard manure per 667 sq m. For topdressing, the first application at thawing time, apply 150
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Clever Fertilization in the Late Stage of Cotton: Disease Prevention and Yield Increase at the Same Time
In the late growth stage of cotton, the root system's ability to absorb nutrients declines noticeably, but if fertilizers such as nitrogen, phosphorus, potassium, zinc and boron are sprayed on the cotton leaves, they can prevent premature senescence, promote early maturity, prevent disease, prevent boll shedding and help set large bolls, with a significant yield-increasing effect. 1. Apply nitrogen fertilizer to prevent premature senescence: each time use 75-100 kg of 1% urea solution per mu, spray once every 5-7 days, for 2-3 consecutive sprays, which can enhance leaf photosynthesis and prevent premature senescence and increase yield. 2. Apply phosphorus fertilizer to promote early maturity: in the late stage of cotton, spraying phosphorus fertilizer on the leaves,
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Application Methods of Fertilizer Long in Formula Fertilization for Rice
1. Advantages of Fertilizer Long: (1) Long-acting and synergistic effect, extending the fertilizer efficiency period of nitrogen fertilizer by 1 time, with no fertilizer deficiency phenomenon throughout the entire growth period of rice. (2) Improved nitrogen fertilizer utilization rate; deep fertilization overcomes fertilizer loss due to running, overflowing and seepage of field water, reducing fertilizer loss. (3) Enhanced resistance of rice to low temperature, drought and disease erosion. (4) Changes traditional multiple surface fertilization to deep one-time fertilization, saving fertilization labor and costs. (5) Reduced nitrogen fertilizer dosage; according to plots with different fertility, the pure nutrient amount of nitrogen fertilizer can be reduced by 15%-25%. 2. Fertilizer Long
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Four key points to master in rice fertilization
First, pay attention to applying sufficient organic fertilizer. Organic fertilizer contains various nutrients, can improve soil aeration and its characteristics of absorbing fertilizer and retaining water, promote robust growth of rice plants, and achieve high yield and good quality. Organic fertilizer is mainly used as base fertilizer, applying 30-40 loads of decomposed farmyard manure per mu, or 30-40 kg of cake fertilizer, and 40-50 loads of human and livestock manure can also be applied after plowing and before flooding. Second, pay attention to controlling nitrogen fertilizer. Excessive application of nitrogen fertilizer to rice will not only cause an increase in ineffective tillering, greening, lodging, and intensified pests and diseases, leading to more empty and shriveled grains, a decline in the seed-setting rate, and affecting rice yield.
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Detailed Explanation of a Reference Fertilization Model for High-Yield Rice
The soil-testing formula fertilization model for a rice yield of 450-550 kg per mu is as follows: (1) Total fertilizer amount and ratio The nitrogen, phosphorus and potassium ratio should be about 1:0.5:0.9, and the total amounts should be approximately: nitrogen 10-13 kg, phosphorus pentoxide 5-7 kg, potassium oxide 8-12 kg. (2) Fertilization plan 1. Basal fertilizer: (1) Organic fertilizer: generally for early rice, apply 1000-2000 kg of fresh green manure per mu, or 500-1000 kg of barnyard manure, or commercial organic
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