Planting Technology Lists
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What should we pay attention to when applying urea to farmland?
What should we pay attention to when applying urea to farmland? Please introduce that urea is a favorite nitrogen fertilizer for farmers because of its convenient use and high fertilizer efficiency. It can be used not only as base fertilizer and topdressing, but also as extra-root topdressing. If it is not applied properly, it will not only cause a waste of fertilizer, but also cause "fertilizer damage" and harm crops. Therefore, in the application of urine.
2018-07-15 -
Attention should be paid to the surge of urea production
How to improve the utilization rate by applying urea? Please guide Shen Shi. Whether urea is used as base fertilizer or topdressing fertilizer, the soil cover should be applied deeply, and the suitable fertilization depth is 10-12 cm. The utilization rate of urea can be obviously improved by deep application of urea. According to the experiment, urea surface application or shallow application of 2-3 cm, the utilization rate is only 30%; the fertilization depth is 5 cm, the utilization rate is 45%.
2018-07-15 -
How to identify the national standard of urea
How to identify the national standard of urea? Please introduce 1 subject content and scope of application this standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of urea. This standard is applicable to urea made from ammonia and carbon dioxide. Its main use is agricultural fertilizer, plastic.
2018-07-15 -
What should be paid attention to in the process of using urea?
How to apply urea? Please introduce that the farmland application of urea can be used as base fertilizer and topdressing fertilizer, but not suitable for seed fertilizer. Urea in the application of base fertilizer should pay attention to two points: first, cover the soil deeply, do not irrigate immediately after application, to prevent urea leaching into the deep layer. When urea is used as base fertilizer on dry land, it must be applied.
2018-07-15 -
Can urea be used as fertilizer?
Can urea be used as fertilizer? Please introduce the production practice and show that urea is not suitable to be used as fertilizer. Urea is an amide physiologically neutral fertilizer with a nitrogen content of 46.3%. It is the inorganic chemical fertilizer with the highest fluorine content in solid nitrogen fertilizer. Urea is white or light yellow crystal, granular soluble in water, suitable for base fertilizer or topdressing, but urea.
2018-07-15 -
What should be paid attention to when using plant regulators?
How do bananas use plant growth regulators? The growth and development, flowering and fruiting of banana are affected by nutrients and endogenous hormones in the plant and external environmental conditions (climate, soil, management level), and are often restricted by some aspects in the process of growth and development. and affect the yield and quality of banana fruit.
2018-07-15 -
How to apply plant growth regulators?
What is the use of growth regulators on watermelon planting? Educational obstacles and Countermeasures-Application of growth regulators in Watermelon growth Regulation; improve seed vigor-regulate plant growth-increase fruit setting rate-accelerate fruit ripening-prevent fruit cracking-postharvest preservation to improve seed vigor watermelon cultivation in winter and spring, air temperature.
2018-07-15 -
Introduction: application method of plant growth regulator
What is the use of plant growth regulators in cucumbers? How to use it? 1. It is beneficial to improve seed vigor. Soaking cucumber seeds with 0.05mg / L brassinolide for 24 hours can promote cucumber seeds to emerge early, emerge together, produce strong seedlings, and increase the resistance of buds and seedlings. ⑵, with love...
2018-07-15 -
How to use growth regulators scientifically for fruit trees
How do fruit trees use growth regulators scientifically? For guidance, the following plant growth regulators can be used for reference: 1. Cutting rooting. Mainly used for grape, kiwi, apple dwarfing rootstock. Changchuan chemicals are indolebutyric acid (IBA), naphthylacetic acid (NAA) and sodium naphthylacetate in auxins. Use method: ①...
2018-07-15 -
Cultivation and management techniques of apricot trees in greenhouse to avoid freezing damage
Cultivation and management techniques of apricot trees in greenhouse to avoid freezing damage
2018-07-15