Table of Contents
Factors affecting corn yield:
For corn planting, the yield is related to many factors. In addition to climate factors, it is mainly managed manually. In the case of spring corn, the productivity per mu is more than 2,000 catties, but the yield per mu is only a little over 1,000 catties. For corn, it is easy for some people to produce more than 1,200 jin per mu, while it is also difficult for some people to produce 1,000 jin per mu. Among them, base fertilizer plays a very important role.
Note on the application of corn base fertilizer:
The application of corn base fertilizer should be appropriate, too much or too little will not work. If the base fertilizer is too much, it will increase the cost on the one hand. After all, the net profit of corn per acre is limited. Under the premise of ensuring the yield, try to minimize the cost input. On the other hand, excessive application of base fertilizer increases the risk of maize growth. Lodging is prone to occur in the middle and late stages, which is not conducive to the ultimate high yield; if the application of base fertilizer is too small, sufficient nutritional supplements will not be obtained during the growth of corn. The growth is slow and the growth is short. In the later stage, the grains are not full and the thousand-grain weight decreases, which is not conducive to high yield.
What kind of fertilizer is used for corn base fertilizer?
If you ask different growers, you will get a completely different answer to this question. The reason is that the area is different, the soil condition is different, the planting habits are different, etc. According to the inquiry of Tianci Heavy in the corn high-yield group, everyone is currently using the base fertilizer It is best to choose organic fertilizer. If there is no farm manure, you can choose to use inorganic fertilizer. There are four main directions: compound fertilizer with the same content of nitrogen, phosphorus, and potassium, compound fertilizer with high nitrogen, low phosphorus and medium potassium, and high nitrogen. The compound fertilizer with medium phosphorus and low potassium and the compound fertilizer with the same high nitrogen, phosphorus, and potassium are illustrated below.
Compound fertilizer with the same content of nitrogen, phosphorus, and potassium: 18-18-18, 16-16-16
Compound fertilizer with high nitrogen, low phosphorus, and medium potassium: 21-8-11
Compound fertilizer with high nitrogen, middle phosphorus, and low potassium: 18-12-10
The same compound fertilizer with high nitrogen, phosphorus, and potassium: 24-12-12, 28-6-6, 30-5-5
Corn base fertilizer dosage:
In addition, in addition to the different fertilizer selections, the amount per mu is also different. Some farmers use 80 jin per mu, some 50 jin per mu, and some farmers use more than 100 jin per mu of base fertilizer, reaching 120 jin per mu. In other words, the amount of ground fertilizer used per mu is between 50-120 catties. Why is there such a big difference?
This is to talk about the problem of farmers’ planting habits. Some farmers like to fertilize at one time and plant a season of corn. From planting to harvest, they only use base fertilizer once, and no top dressing in the future. Therefore, the use of base fertilizer will be more. This saves trouble, such as 120 kg of base fertilizer; on the contrary, some farmers like to fertilize multiple times, planting a season of corn, in addition to the base fertilizer application, you need to apply 2-3 times in the later period. This will be more troublesome, such as using base fertilizer. 50-60 patties, each follow-up topdressing about 15-20 catties. The little helper personally suggested that farmers should choose the latter method of fertilization if they have the conditions.
In summary, there is actually no fixed answer to the question of what kind of base fertilizer to choose for planting corn and how much to use per mu. As a farmer, the most accurate choice and amount of fertilizer are to choose the fertilizer for your own plot. The soil testing formula is used to select the appropriate fertilizer according to the specific data. If the phosphorus element is low, you can choose a compound fertilizer with high nitrogen, medium phosphorus, and low potassium. If the potassium element is low, you can choose a compound fertilizer with high nitrogen, low phosphorus, and medium potassium.