First, to understand the cotton fertilizer requirement, cotton is one of the crops with relatively large fertilizer demand, but the fertilizer requirement in the seedling and bud period only accounts for 20%~30% of the total fertilizer requirement, and a large amount of fertilizer needs to bloom from the flowering to the bellowing period. Therefore, the more applicable fertilization experience should be: bottom fat foot, seedling speed, bud fertilizer stability, flower bell fat, and general application of peach fertilizer. The fertilization ratio of nitrogen, phosphorus and potassium should be 1:0.3:1.
The second is to apply the base fertilizer to the place where there are conditions. It is mainly based on organic fertilizer, with appropriate amount of phosphorus and potassium fertilizer. The organic fertilizer produced by the farmer applies about 4000 kg per mu, with 25 kg of phosphate fertilizer and 15 kg of potassium fertilizer. . Second, the application of inorganic fertilizer should be based on high-efficiency compound fertilizer. The high content of 25 kg per mu is applied, the medium content is about 50 kg per mu, and the application of potassium fertilizer is 10 kg, the holding boron is 0.4 kg, and the zinc fertilizer is 0.5. kg. The third is to use a hole to transplant seedlings. After fertilization, it should be separated by fine soil, and then planted with seedlings.
The third is to quickly apply the cotton field with sufficient base fertilizer and fertilizer. Apply one seedling fertilizer directly. The cotton field with insufficient base fertilizer should be applied twice in the seedling stage. The first application of urea is 5 kg per mu, and the second application of urea per acre is 8 ~10 kg, can also apply about 25 kg of ammonium bicarbonate, or apply water and manure seedlings. In the seedling stage, it is necessary to highlight the seedlings with quick-acting fertilizer.
This article URL: What are the precautions for cotton seedling fertilization?
Carbohydrazide CAS NO. 497-18-7
Carbohydrazide can act as an oxygen scavenger to prevent corrosion, especially in boiler feedwater systems, rocket propellant assemblies, color image and soap stabilizers, antioxidant rubber, boiler water deoxidizers and metal passivators. Carbohydrazide can also be used as an anticorrosive agent. Organic synthesis of intermediates.
CAS No. 497-18-7 EINECS 207-837-2
Molecular Formula CH6N4O Molecular Weight 90.08
Attributes:
Carbohydrazide is a white crystalline powder or granule. The effective content of carbohydrazide is from 98.0 to 100.0%.
Specifications:
|
Items |
Index |
|
Appearance |
White crystal line powder or pellets |
|
Active Content (%) |
98.0-100.9% |
|
PH (12% Solution, @ 25 ℃) |
8.45±1.25 |
|
Free Hydrazine |
≤250ppm |
|
Chloride (Cl) |
≤10ppm |
|
Sulfate (SO4) |
≤20ppm |
|
Silica (SiO2) |
≤10ppm |
|
Copper (Cu) |
≤1ppm |
|
Iron (Fe) |
≤4ppm |
|
Sodium (Na) |
≤4ppm |
|
Lead (Pb) |
≤4ppm |
|
Moisture |
≤0.2% |
Packaging and storage:
Pack 25 kg or 50 kg with woven bags or fiber drums.
Store in a cool, dry, well-ventilated area away from incompatible materials. Please close the container when not in use.
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