How to use compound fertilizer
Compound fertilizer concentration difference is large, should pay attention to select the appropriate concentration. Most of the compound fertilizer is in accordance with a region of the average soil type of nutrients and large proportion of crops allocated fertilizer ratio. On the market there are high, medium and low concentration series of compound fertilizer, the general low concentration of total nutrients between 25% to 30%, the concentration of 30% to 40%, high concentrations of 40% or more. To the geographical, soil, crop different, choose to use the economy, efficient compound fertilizer. General high concentration of compound fertilizer used in economic crops, excellent quality, less residue, high utilization rate.
Compound fertilizer decomposition is slow, the seed fertilizer with seed fertilizer when the crop should be based on different crops to be fat in the rule of fertilizer in a timely manner when the supply of available nitrogen fertilizer to meet crop nutrition needs.
Fertilizer fertilizer effect is long, should do basal fertilizer. A large number of tests have shown that both binary and ternary complexes are better. This is because the compound fertilizer contains nitrogen, phosphorus, potassium and other nutrients, especially early on the crop of phosphorus, potassium is extremely sensitive to the requirements of phosphorus, Controlled release compound fertilizer in the production process using the coating, granulation and other processes, fertilizer efficiency slow and smooth, than the simple decomposition of fertilizer, nutrient leaching less, high utilization rate, suitable for basal fertilizer. General acres of the amount of 30 to 40 kg. Compound fertilizer should not be used for seedling fertilizer and medium and late fat, to prevent greedy filial piety.
Compound fertilizer, whether it is low concentration or high concentration, the application should pay attention to control the amount of flowers, and fertilizer must be fully mixed with soil to prevent the root, while the best use of potassium sulfate fertilizer, the current use of fertilizer on the base Combined with organic fertilizer, try not to use inorganic fertilizer.
