What factors affect corn yield?
What factors affect corn yield? The following are several reasons that affect corn yield: First, seed selection is not done carefully. Go to a legitimate seed business department and select improved varieties suitable for planting in this region; this is the prerequisite for achieving high corn yield. Second, the density is too high. Some farmers, in order to achieve high yield,...
What factors affect corn yield?
The following are several reasons that affect corn yield:
First, seed selection is not done carefully. Go to a legitimate seed business department and select improved varieties suitable for planting in this region; this is the prerequisite for achieving high corn yield.
Second, the density is too high. Some farmers, in order to achieve high yield, blindly increase planting density, causing excessive plant density, which leads to poor growth and development of individual corn plants, a high rate of barren stalks, severe bare tips on the ear, and lodging to varying degrees, thereby causing reduced yield. Reasonable close planting is an important part of achieving high yield in summer corn, and different dense-planting ranges should be selected according to the characteristics of different varieties. Even for the density of the same variety, it should be flexibly controlled according to soil fertility and sowing date; plots with high soil fertility or late sowing should be denser, while plots with medium or low fertility or early sowing should be sparser.
Third, fertilization is not scientific. In agricultural production, there is a widespread phenomenon of emphasizing nitrogen fertilizer, neglecting phosphate fertilizer, and ignoring potassium fertilizer and micronutrient fertilizers. Because too much nitrogen fertilizer is applied, corn often shows poor lodging resistance and severe pests and diseases, causing reduced yield to varying degrees. Phosphate, potassium, and micronutrient fertilizers should be applied deeply as seed fertilizer or applied early before jointing, while nitrogen fertilizer should be applied in stages as topdressing, with 2/3 of the total nitrogen fertilizer applied at the jointing stage and 1/3 at the large trumpet stage. In addition, applying foliar fertilizer during the growing period can achieve a noticeable yield increase.
Fourth, watering is not timely. Some farmers do not water according to the water requirements of corn, and often water only after discovering drought, thus missing the good opportunity to promote plant growth and development. On the premise of sowing with sufficient soil moisture, timely water well for jointing and booting, heading and flowering, and grain filling, so as to meet the water needs of plant growth and development.
Click to get more corn planting techniques
Click to get more grain crop planting techniques