What Factors Affect Corn Yield? Latest Analysis of the Causes
China's corn planting area is still relatively extensive, and the emergence of hybrid corn has pushed corn yields up to another level. Annual corn production is getting better and better, which is related to many factors. So what we want to understand today is the reasons that affect corn yield. However, since there are many reasons that affect corn yield, below are a few relatively important ones compiled by the editor. Let's take a look together.
1. Variety selection
There are now many different corn varieties, and each variety has different resistances, such as strong drought resistance, strong disease resistance, strong cold resistance, strong waterlogging resistance, and so on. Whether the variety is selected correctly is the most basic factor affecting corn yield. To increase corn yield and keep it from being affected by variety factors, we need to comprehensively consider all aspects of the factors at the location where the corn is planted before choosing a variety.
2. Planting conditions
The impact of planting conditions on corn yield is mainly seen in three aspects: temperature, soil, and light. If the planting conditions are not conducive to corn growth, then no matter how good the variety selected is, it will not help. Therefore, planting conditions are also an important factor affecting corn yield, and at the same time they are the basic conditions for corn growth. So we need to choose suitable planting sites for planting.
3. Density management
When there are no problems with the above two basic conditions, planting density will also affect corn yield. Because corn growth requires a certain amount of light, if the planting density is too high, the field will appear relatively gloomy, thus affecting corn growth and ultimately affecting corn yield. In addition, too high a density will affect pollination, which is the reason for the final reduction in corn yield. If planted at normal density, the corn cobs will be much larger, and thus corn yield will also increase.
4. Water and fertilizer management
Water and fertilizer are a key reason affecting corn yield. We usually also aim to increase corn yield by strengthening water and fertilizer management. If there is too much moisture in the field, corn seedlings will rot and other diseases will occur, which will reduce corn yield. Next, if there is too little moisture, the corn seedlings will dry out and die, which will also lead to reduced yield. Then, if fertilizer is applied excessively or improperly, it will lead to reduced corn yield, while if too little fertilizer is applied, it will cause nutritional deficiency in corn, ultimately leading to reduced yield.
5. Weed control management
Weeding is a relatively important step in corn planting. We all know that weeding can promote the growth of corn roots and corn seedlings, and it can also promote the growth of corn cobs. To a certain extent, it can also enhance corn's resistance, thereby increasing corn yield. However, if weeding is not carried out reasonably during corn planting, it will first lead to nutrient loss, then attract many pests, and then slow down corn growth, causing it to miss the best fruiting and ripening periods, ultimately leading to reduced corn yield.
6. Disease management
Throughout the entire growth period of corn, there are actually many pests and diseases. Once vigilance is relaxed and prevention and control are not carried out properly, the damage to corn is very great, because it is not only an impact on a single corn plant, but an impact on the entire field of corn. Therefore, disease management is also an important reason affecting corn yield.