The water-retaining agent has a strong function of water absorption, can absorb a lot of water-soluble nutrients, in the soil on the fertilizer nutrient delayed release effect, effectively improve the water and fertilizer interaction, and improve fertilizer utilization. Absorption of the effective sustainability, to achieve increased efficiency. The proportion of water-retaining agent and fertilizer can be added in accordance with the main elements of water-based fertilizer added 20 to 50 kg per ton; slow release trace element fertilizer per ton add 30 to 80 kg.
1. Mixing granulation: The water-retaining agent and the fertilizer component are mixed and granulated in a granulator without changing the fertilizer formula to prepare mixed particles. Or with a water-retaining agent and 8 ‰ of adhesive in the disc granulator to produce long-lasting fertilizer, made of fertilizer with water and fertilizer to prevent the role of nutrient loss.
2. Coating type: with 8 ‰ of adhesive as a granular fertilizer coating material and plastic chain, by physical or chemical way to be wrapped in fertilizer and water retaining agent particles made of water-coated coated fertilizer. Water-retaining fertilizer makes the nutrient content of water-retaining fertilizer to improve, but also play a certain role in delaying the release of fertilizer nutrients. The results show that the crosslinked polyacrylamide type water retaining agent has certain sealing property, nutrient slow release and water retention, and can be used as the coating material of controlled release fertilizer. Water-retaining agent coating has a high water absorption rate, the coating is not easy to fall off, slow release performance is good, anti-caking, no pollution.
3. Polymerization type: the use of polymerization directly through the adsorption of fertilizer, embedded in the polymer matrix or fertilizer molecules or ions and polymer monomer copolymerization to the polymer molecules, so that the fertilizer and hydrophilic polymer into a complete Integrated substances, such fertilizers are matrix type slow / controlled release fertilizer. Can improve the nutrient content of water-retaining fertilizer, but also the introduction of new nutrient-controlled mechanism to improve the release of nutrients to maintain the performance of nutrients. According to statistics, China's nitrogen fertilizer season utilization rate of only 30 to 35%, phosphorus utilization rate of only 15 to 20%, potash utilization rate of not more than 65%. Each year through the rain leaching, volatile chemical nitrogen reached 12 million to 14 million tons, worth more than 40 billion. Severe loss of fertilizer, increase costs, resulting in waste, but also to the environment pressure in the fertilizer by adding water-retaining agent mixed with the application, can effectively lock the water and fertilizer, can play a multiplier effect.
云南11选5开奖结果Mixed with the advantages of fertilizer application: 1. Micro-ecological high degree of suitability: for the beneficial micro-organisms in the fertilizer to create a balanced nutrition, humidity suitable micro-ecological environment, enhanced nitrogen fixation, phosphorus, potassium solution effect. 2. To effectively reduce the amount of fertilizer, while promoting rapid plant growth, increase production, income. Experiments show that by adding the additives made of fertilizer, compared with conventional fertilizer application efficiency increased by 20 to 30%, while saving 45%, 30% of fertilizer, 30% of workers. And habit of fertilization control, an average yield of 13% to 15%.