Is fertilization or innovation? Fertilizer promotion should avoid hype or pseudoscience! Recently, three or four farmers in a village in the street town of Wulian County, Shandong Province, reported that they used a kind of spreading fertilizer and covered them after spreading. However, most of the leaves showed yellowing and chlorosis, and the whole plant grew slowly. . Compared with the corn of the adjacent plot, it is obviously five or sixty centimeters short. Another farmer used the fertilizer in the nursery, and the nursery was all dead. He dialed the manufacturer's phone number on the fertilizer bag, but the phone was an empty number, only to know that he was deceived.
It is understood that these farmers are all bought from a vendor in the countryside, 70 yuan (40 kg) per bag, marked as 25% nitrogen, 1.5% zinc, can be applied, thrown, not buried. They feel cheap and each has bought several bags. But after the accident, the vendor could no longer be found.
This kind of spreading fertilizer is favored by more and more farmers who do not know the truth in the summer corn area. However, every year there is a fatal accident. According to the author's understanding, the so-called "lazy Chinese fat" propaganda is very fancy: contains anti-sun factor, "control loss is not afraid of the sun, do not bury", add silicon plus zinc dual power, add calcium and zinc total nutrition, also It is marked with the chemical symbols of calcium, magnesium, zinc and other elements that farmers do not know, and sells a lot of price.
This type of fertilizer packaging is varied and colorful, especially for farmers who have huge corn patterns on their packaging. This kind of spreading fertilizer is mainly produced by some small fertilizer plants. The specification is 40 kg or 50 kg per bag. The retail price is 70-90 yuan (40 kg) or 120-130 yuan (50 kg) per bag.
Nutrients are generally identified as N30, Ca5, Mg5, as well as N24, humic acid, and beneficial bacteria. After the manufacturers made a big fan of advertising, exaggerated their propaganda, under the guidance of considerable profits, dealers at all levels have joined the promotion ranks.
In many places, farmers buy fertilizer first: "Is there a compound fertilizer that does not need to be burrowed?" Which farmer's shop does not have such fertilizer, the business must be soaked. According to a dealer in the street town, he has never believed in the effect and use of such fertilizers. He has refused to promote it, but many neighbors have named such goods and have done his ideological work again and again. Goods, the effect is not good and never complain.
The summer top dressing market has always been a high incidence of inferior fertilizer. This kind of spreading fertilizer lacks potassium, which tends to cause the corn base to be thinner and the root system to be underdeveloped, which can easily cause corn to fall. Due to the lack of phosphorus, the pollination of the ears is incomplete, the baldness is formed, the grains are not arranged neatly, or the deformed ears such as "face" are formed. Too much nitrogen fertilizer or post-migration, it will also cause corn to be late and mature.
The reason why such lazy manure is favored by farmers is that farmers lack professional knowledge and regard the exaggeration of manufacturers as science. The author heard a farmer praise: "The better the heat effect of this fat day, the better the effect of a neighbor last year, and the corn grows very well."
The second is to cater to the rising labor costs and the need for farmers to save labor and labor. Farmers prefer to go out to work, and are not willing to invest time in the responsibility field, because the benefits of farming are too low. Third, this kind of lazy manure has found a so-called selling point for the manufacturers in the case of serious overcapacity and serious product homogenization. It does not require technical support and scientific research input, and is naturally highly praised by some local small factories.
As we all know, the actual utilization rate of domestic fertilizers is about 30%. In recent years, the promotion of controlled release fertilizers has been vigorously promoted. An important reason is that the utilization rate of fertilizers can be increased to more than 60%.
Imagine that 30% of the fertilizer utilization rate can be achieved in the case of deep application such as ditch application and acupoint application. When it is applied or thrown on the surface, it must encounter high temperature evaporation and face the loss of rainfall surface water. How much can the rate be achieved? Like Wulian County, where the author is located, it is a typical mountainous area. The cultivated land is thin and extremely uneven. Once the fertilizer is lost, it will be lost with water. What is the utilization rate of such fertilizer?
The author discussed this issue with a number of agricultural resources dealers. A dealer who has been operating fertilizer for many years said that such lazy Chinese fat is purely a peasant. Compound fertilizers with higher nitrogen content can be applied, especially in the case of leeches that cannot be fertilized normally. They can be applied completely, but the utilization rate must be greatly reduced. Nitrogen fertilizer may lose more than one third, environmental pollution. It is also more serious than acupoint application and ditch application. The activity of phosphorus and potassium is poor, and it is more difficult to be absorbed by the roots of crops.
The author suggests that manufacturers, no matter what fertilizers and specific fertilizers are promoted, first of all, don't forget that crop safety is the most important, and there is no scientific basis. If innovation is based on speculation or pseudoscience, it can only cause losses to farmers.
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