Different types of micro-fertilizers have different usage methods, and scientific application requires distinction.
In recent years, the problem of wheat seed burning and seedling burning during autumn planting has occurred repeatedly. In mild cases, it causes 20% to 30% missing seedlings and broken rows; in severe cases, replanting becomes necessary, and this problem is on the rise. In pursuit of higher and higher yields, some farmers one-sidedly believe that as long as they apply more fertilizer, they can achieve high yields. They pay no attention to whether the soil nutrients in the plot are abundant or deficient...
Zinc fertilizer: The main variety is zinc sulfate. The basal application rate is 1-1.5 kg per mu, seed soaking uses a 0.03%-0.05% zinc sulfate solution for 12 hours, seed dressing uses 4-6 grams of zinc sulfate per kg of seed, and the spray concentration is 0.2%-0.3%. Boron fertilizer: The main variety is borax. The basal application rate is 0.5-1.0 kg per mu, seed soaking uses a 0.01%-0.02% borax solution for 6-12 hours, seed dressing uses 0.5-1.0 grams per kg of seed, and the spray concentration is 0.2%.
Iron fertilizer: The main variety is ferrous sulfate. The basal application rate is 2-3 kg per mu, and mixing it with high-quality organic fertilizer for band application or hole application gives better results. Seed soaking uses a 0.05% ferrous sulfate solution for 12 hours, and the spray concentration is 0.3%-0.5%.
Manganese fertilizer: The main variety is manganese sulfate. For basal application, the rate is 2-3 kg per mu, mixed with high-quality organic fertilizer for band application or hole application. Seed soaking uses 0.05%-0.1%.