Future prospects of amino acid fertilizer use
Amino acid fertilizers produced by hydrolysis or fermentation contain a large number of small molecular organic compounds, so as a chelating agent, the development of new multifunctional fertilizers has developed rapidly. Amino acid microelements chelate Hefei. The absorption biochemical function of inorganic micro fertilizer is poor, it is easy to be fixed by soil, and there is obvious antagonism between trace elements, and the utilization rate is low, which is difficult to meet the needs of plant growth; Using EDTA, citric acid, tartaric acid, etc. as chelating agents to produce chelating micro fertilizers is very expensive. The multi-element micro fertilizer containing Mo, Zn, Cu, Fe, Mn, etc. has been prepared, which has the characteristics of resisting interference, alleviating the antagonism between metal ions, good chemical stability, easy to be absorbed and utilized by plants, and the amino acid after losing the reduction of metal ions also has nutritional effect, which is also a high-quality nitrogen fertilizer to promote plant growth. Amino acid chelated micro fertilizer is the most ideal micro fertilizer for crop growth at present, and has been used in agricultural production as a new fertilizer. At present, there are also products that combine amino acid pesticides and fertilizers, which can not only fertilize, but also kill insects and sterilize. Therefore, it is the requirement of ecological agriculture and the inevitable trend of agricultural sustainable development to systematically carry out the function research of amino acid fertilizer, give full play to the potential of amino acid, and improve its utilization rate and biological potency.
Amino acid fertilizer produced by hydrolysis or fermentation is a fertilizer with compound amino acids as the main body, and contains sugar, protein or bacteria and other metal ions at the same time. Studies have shown that the fertilizer effect of mixed amino acids is greater than that of single amino acids. The fertilizer effect of some single amino acid groups with good fertilizer effect is still high, while the fertilizer effect of some amino acid groups with poor fertilizer effect is still low. It is considered that there is still a problem of optimization of amino acid composition. When protein hydrolysis or fermentation products are actually used as amino acid fertilizer, they are generally mixed amino acids, but the types and concentrations of amino acids in the waste liquid of different processes and amino acids are different. Therefore, the fertilizer efficiency of the same crop is also different, so there is also the problem of optimization. How to further optimize the composition and structure of fertilizer according to the needs of crops, adjust the proportion of each component to balance each other, and make the varieties produced diversified and specialized should be explored and tested in practice.
In short, the continuous research on the hydrolysis or fermentation of agricultural waste to produce amino acid fertilizer and its application has opened up more and more new sources of raw materials, providing a new scientific basis for the scientific development and application of amino acid fertilizer. Because the raw materials and processes of amino acid fertilizer production are very different, and the components are comprehensive and complex, the production and Application Research of amino acid fertilizer is a complex system engineering, involving chemistry, chemical engineering, biochemistry, soil nutrition, plant physiology and other disciplines, which has a very broad development space.