Rapeseed fertilizer applied to prevent freezing and promote growth

The application of wax fertilizer to rape is an important measure to increase production. Its role is mainly reflected in the following three aspects:

Insulation and antifreeze application of fertilizers containing more phosphorus and potassium fertilizer for the farmyard, can increase the temperature of 2 ~ 3 °C, increase the potassium content of plant cells, and enhance the water holding capacity of cells, so that the plants are not easy to freeze at low temperatures, free from frost damage. In addition, the addition of organic fertilizer can also increase the concentration of salt in the soil solution and reduce the damage of the rape root system.

Promote the growth and development of rape buds

The rape bud stage is the period when phosphorus and potassium nutrients are absorbed. The application of wax fertilizer can ensure the supply of phosphorus and potassium nutrients during this period, thus promoting the growth and development of rape, and increasing the number of effective branches and pods.

The flowering and maturation stage of rapeseed spring rape is the most vigorous period of reproductive growth, and the absorption of phosphorus reaches a peak, accounting for about 60% of the whole growth period, and it also needs to absorb a certain amount of nitrogen and potassium nutrition. In spring, the temperature rises quickly and the humidity is high. If quick-effect fertilizers are applied, the plants will go wild and cause lodging and diseases. The application of organic fertilizer-based wax fertilizer, energy continuously released nutrients, to the later growth and development of rape, so as to achieve the purpose of long spring rape rape.

The application amount of wax fertilizer depends on the seedling condition, the seedling condition is good, and the thick fat is applied more often, and the heat preservation is the main condition; if the seedling condition is poor, more fertilizer is applied to provide nutrients. Generally, 1200-1500 kilograms of soil-fertilizer per mu or 700-800 kilograms of decomposed pig manure is applied, and 10-15 kilograms of superphosphate are applied. Due to the shortage of nitrogen and early rapeseed, add 400 tons of human fecal urine per acre or 5 to 6 kg of urea. The application time of wax fertilizer should be determined by fertilizer due to seedlings. The bulky soil fertilizer and pig manure applied earlier must be applied before field closure of rapeseed. Fertilization must be combined with cultivator roots to bury the fertilizer in the soil.

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