Organic fertilizer is rich in resources, including not only manure, straw, green manure, soil fertilizer, fertilizer, but also cake fertilizer, sea fertilizer and biogas. The results showed that the combined application of organic and inorganic fertilizers could promote the recycling of soil nutrients, increase crop yield, improve the quality of agricultural products, accelerate the harmless utilization of organic wastes and resource utilization, which is the fundamental guarantee of sustainable agricultural development. The industrial fertilizer production line also processes organic fertilizer and NPK fertilizer in proportion. So, how should organic fertilizer and inorganic fertilizer be used together?
Organic fertilizer / inorganic fertilizer
1. Fertilize less frequently. Nitrate nitrogen and ammonium nitrogen in the compound fertilizer will absorb part of the heat in the process of dissolving, which will affect the ground temperature and adversely affect the growth of crop roots. However, the normal growth of crops still needs adequate nutrient supply. Therefore, the compound fertilizer should be applied less in winter, and should be applied in the morning when the weather is good.
2. Inorganic fertilizer should be combined with pure biological fertilizer (no nitrogen, no phosphorus, no potassium). Long term use of chemical fertilizer will gradually consume the organic matter in the soil, resulting in the reduction of the number of beneficial microorganisms in the soil, the decrease of enzyme content, and the destruction of colloid, resulting in soil compaction, acidification and salinization. NPK fertilizer and organic biological fertilizer can improve soil, make sand reunite, loosen clay, inhibit pathogenic bacteria, restore soil micro ecological environment, improve soil permeability, improve water retention and fertilizer capacity. The pan granulator is used in chemical fertilizer plants to process organic and inorganic fertilizers to improve fertilizer efficiency.
3. Fertilizer should be suitable. For leafy vegetables and other vegetables, due to the fast growth, high nitrogen demand and low phosphorus demand, the compound fertilizer with high nitrogen content and low phosphorus content should be selected; for fruit melon, the potassium demand is more, the phosphorus demand is less, the compound fertilizer with high potassium and low phosphorus can be selected; For the next vegetable seedling, due to the large demand of phosphorus at seedling stage, the compound fertilizer with higher phosphorus content can be used as basic fertilizer, and the compound fertilizer with higher phosphorus content can be applied after planting slow seedlings.
The manufacturer of fertilizer granulation machine suggested that the fertilizer should be applied scientifically. According to the above principles, organic fertilizer and inorganic fertilizer should be used together to increase agricultural income.