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Can urea be used as a seed fertilizer? You need to master the correct method of use
Can urea be used as a seed fertilizer? Please explain. Production practice shows that urea is not suitable as a seed fertilizer. Urea is an amide-form physiologically neutral fertilizer, containing 46.3% nitrogen, and is the inorganic chemical fertilizer with the highest fluorine content among solid nitrogen fertilizers. Urea is a white or light yellow crystalline substance, granular and easily soluble in water, suitable as a base fertilizer or top dressing, but urea...
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What are the methods for identifying the national standard for urea products?
How do you identify the national standard for urea? Please introduce 1 Subject content and scope of application This standard specifies the technical requirements, test methods, inspection rules, and marking, packaging, transport and storage of urea. This standard applies to urea produced by synthesis from ammonia and carbon dioxide. Its main uses are agricultural fertilizer, plas...
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What are the remedial methods for herbicide phytotoxicity?
How should weeds be controlled in rapeseed fields? Please advise. To control weeds in rapeseed fields, on the basis of vigorously implementing crop rotation such as rapeseed-rice, rapeseed-vegetable, and rapeseed-bean, and strengthening field management, we must vigorously promote chemical weed control technology. Pre-sowing chemical stubble cleaning: during the fallow period after rice harvest and before rapeseed sowing or transplanting, use glyphosate, bai...
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The Correct Method for Spraying Foliar Fertilizer on Peanuts
How should foliar fertilizer be sprayed on peanuts? Please advise. Foliar fertilization of peanuts has the effects of a high fertilizer absorption and utilization rate, saving fertilizer, and significantly increasing yield. When nitrogen fertilizer is applied to the leaves, the absorption and utilization rate by peanut plants reaches more than 55.5%, the number of full pods increases markedly, and the economic coefficient rises significantly; when phosphorus fertilizer is applied to the leaves, the yield can generally be increased by 7%-10%...
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What are the methods for using herbicides on aquatic vegetables?
How can grapes be protected from herbicide damage? Please advise. According to surveys, the harm to grapes from herbicides is also becoming increasingly serious, especially for varieties that sprout and unfold leaves early, such as Vitis amurensis (Amur grape), which suffer particularly severe damage. The leaves of affected plants look as if they have been scalded with boiling water. Later they dry up and fall off, and the clusters also show varying degrees of wilting; in severe cases the berries...
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What are the sowing methods for orchid bonsai? Hurry up and learn them.
Orchids are one of the most common potted plants in our homes. Together with "plum, bamboo and chrysanthemum" they are known as the Four Gentlemen, and judging from China's more than 2,000 years of orchid history, orchids have always been a symbol of nobility and elegance, planted in...
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Milan bonsai care tips: do you know these methods?
Many people love Aglaia odorata (Milan flower) because of its flower meaning. Its flowers are beautiful, and its flower meaning is also very meaningful. It can not only purify the air but also decorate the home, so many people like to grow Aglaia odorata at home. Your home...
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What are the effective methods to improve nitrogen fertilizer use efficiency?
What happens to vegetables when there is too much or too little nitrogen fertilizer? Please explain the symptoms that appear when vegetable nitrogen is imbalanced: excessive nitrogen leads to nutrient imbalance in the plant, inducing deficiencies of potassium, calcium, boron and other elements; ammonia accumulates in the plant, causing ammonia toxicity, affecting vegetable yield and quality, and also affecting nutritional quality and hygiene...
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What are the scientific application methods for bio-organic fertilizers?
How should nitrogen fertilizer be applied to fruit trees? Please provide guidance. If there is too much nitrogen in the fruit tree, it will cause an imbalance between carbohydrates and nitrogen in the tree or disrupt its relationship with other elements, resulting in excessive vegetative growth, spindly branches and leaves, poor flower bud differentiation, and serious flower and fruit drop; in summer and autumn, when the nitrogen content in fruit leaves exceeds 2....
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Orchard termites are highly secretive and cause great damage; master these six methods for control
Highly secretive and destructive: six methods for orchard termite control
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