Fertilizers that are not selected to have corrosive effects Ammonium bicarbonate and ammonia are volatile and corrosive. They can easily injure seeds and seedlings. Superphosphate contains free sulfuric and phosphoric acids, which can cause harm to seed germination and seedling growth. Generally, it is not suitable to do so. Fertilizer. This kind of fertilizer can be applied under the seeding ditch or separated from the seed by a certain soil layer, or mixed with superphosphate and earth fertilizer.
Fertilizers that are not selected to have a toxic effect often contain a small amount of a biuret component, which is toxic to the seed and seedlings. In addition, urea molecules with a high nitrogen content penetrate into the protein molecules of the seed, denature the protein, and affect seed germination.
Do not select fertilizers containing harmful ions. Potassium chloride, ammonium chloride and other fertilizers contain chloride ions. When applied to the soil, they will produce water-soluble chlorides, which will be detrimental to seed germination and seedling growth. Nitrate ions contained in fertilizers such as ammonium nitrate and potassium nitrate also affect seed germination.
Do not choose strong alkaline fertilizer kiln ash potash, steel slag phosphate fertilizer and other alkaline fertilizers are also not suitable for seed fertilizer. Potash kiln ash has strong hygroscopicity, and it releases a lot of heat after absorbing water, easily burning seeds and radicles. When it is necessary to make fertilizer, it must be mixed with organic fertilizer, applied into the sowing ditch, and then sown with cover.
Do not choose unfamiliar farmer's fertilizer commonly used in rural areas such as manure fertilizer, human waste water, etc. as a seed fertilizer, if not cooked, in the fermentation process to release a lot of heat easy to burn the root system, releasing ammonia and burning seedlings. Therefore, do not use organic fertilizers that have not been matured. After high-temperature fermentation by stacking, fully decompose them to make them.
Fertilizers that are not selected to have a toxic effect often contain a small amount of a biuret component, which is toxic to the seed and seedlings. In addition, urea molecules with a high nitrogen content penetrate into the protein molecules of the seed, denature the protein, and affect seed germination.
Do not select fertilizers containing harmful ions. Potassium chloride, ammonium chloride and other fertilizers contain chloride ions. When applied to the soil, they will produce water-soluble chlorides, which will be detrimental to seed germination and seedling growth. Nitrate ions contained in fertilizers such as ammonium nitrate and potassium nitrate also affect seed germination.
Do not choose strong alkaline fertilizer kiln ash potash, steel slag phosphate fertilizer and other alkaline fertilizers are also not suitable for seed fertilizer. Potash kiln ash has strong hygroscopicity, and it releases a lot of heat after absorbing water, easily burning seeds and radicles. When it is necessary to make fertilizer, it must be mixed with organic fertilizer, applied into the sowing ditch, and then sown with cover.
Do not choose unfamiliar farmer's fertilizer commonly used in rural areas such as manure fertilizer, human waste water, etc. as a seed fertilizer, if not cooked, in the fermentation process to release a lot of heat easy to burn the root system, releasing ammonia and burning seedlings. Therefore, do not use organic fertilizers that have not been matured. After high-temperature fermentation by stacking, fully decompose them to make them.
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