Reference fertilization technology model rational use of fertilizer

Fertilizing technology is simple and simple. It is complex and complex. It means that fertilization technology is easy to get started, but it is difficult to do it. It is complicated because the factors affecting the effects of fertilization and fertilization are too many and too complex, and there are great variability and uncertainty. For example, even at the same time and in the same place, if the same fertilization plan is applied to the same crop, thousands of trials will not yield exactly the same yield results. What's more, our country has a vast land, with climates in the east, west, south, north, and middle China. The soil conditions, crop types, and production levels are quite different. According to statistics, there are at least 140 kinds of grain, vegetables, fruit trees, and industrial raw material crops in China. The combination of these crops and different fertilization conditions is extremely tedious. It is difficult to find a fertilization measurement formula that can be applied everywhere. Simply put, it is because a large number of production and scientific research practices have proved that there is a certain biostatistical rule between the amount of fertilizer applied and the yield, that is, between the amount of fertilizer and the amount of crops that can be found in the same type of crop through a large number of scientific experiments and production practices. Relatively stable quantitative relationship, and put forward corresponding supporting technical specifications, this is the fertilization technology model. Based on this, combined with the specific climate and soil conditions in the region, the characteristics of crop manure requirements, and the major problems in the target production and production, the technical model of fertilization suggestions is further amended, and it can be proposed quantitatively more accurately. Targeted fertilization recommendations. This is similar to the fact that people’s appetite is different and their tastes vary. It is difficult to formulate the best recipe for everyone. But from the dietary rules of most people, we can know that in general, each person needs three meals a day. A meal needs one or two steamed buns.

Based on the above ideas, the author of this article summarized the fertilizer application proposals for major crops in China (including the N, P, K application amount, fertilization period, and fertilization ratio) into a table, which was published in the November 11th, 2011 issue. The proposal is based on a large number of field trial results, expert knowledge and production experience, and is based on the characteristics and needs of agrochemical services. The agrochemical service workers and farmer friends can use this table as a reference for preparing fertilizer and fertilizing. I hope everyone will use this as a starting point for further study. In the first place, we will apply the combination of local fertilization conditions and production practices. If conditions are available, better soil fertigation results can be obtained with the aid of soil testing and formula fertilization techniques and the help of relevant experts.