Can the yield increase with urea alone in corn field? Balanced fertilization can maximize the potential of increasing production.

Some netizens asked whether the single application of urea in the corn field could increase the yield. The following is my reply.

The yield of corn fields with urea alone is still higher than that without fertilizer, but it is certainly not as good as that of balanced fertilization. Corn is also a living organism, which needs the interaction of a large number of trace elements such as nitrogen, phosphorus, potassium and calcium, magnesium, iron and zinc to make corn give full play to its yield advantages, and it is impossible to obtain yield without any fertilizer.

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If we talk about the use of hydroponic culture, if only urea is applied, this single element cannot feed corn. At the beginning of the world, plant scientists found that the growth of crops requires 17 essential elements to meet their physiological needs, and it is impossible to live without any of them.

And urea contains only nitrogen, hydrogen and oxygen, but does not contain any mineral elements, in this case, how can corn survive?

However, if it is a field, the soil will naturally contain some elements, among which, if corn is not planted in successive years, even if only nitrogen fertilizer urea is used, the physiological needs can be met, and the elements in the soil may not be enough. for example, there are yellow leaves, leaf spots and other morbid, but the results are still expected. Even now many rural areas are still only in the corn trumpet period, topdressing nitrogen fertilizer and not applying other fertilizers. In the end, the corn also produces sticks.

Therefore, corn topdressing nitrogen fertilizer urea will certainly have a higher yield than the field without fertilizer application.

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However, if balanced fertilization is adopted, some phosphorus, potassium and micro-fertilizers will be added in addition to nitrogen fertilizer, which will be more helpful to increase the yield of corn. For crops, the three major nutrient elements are nitrogen, phosphorus and potassium, and corn is no exception, even if the field can supplement trace elements, but because of the high demand for phosphorus and potassium, if there is not enough phosphorus and potassium fertilizer in the field, the yield will naturally be affected.

Therefore, the yield of the field supplemented with phosphorus and potassium fertilizer will naturally be higher than that of the field with single topdressing urea.

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