High yield of corn, good seed is the key. During the annual corn planting season, many farmers' friends are looking for corn varieties to have a good harvest in the fall. So, what problems should farmers' friends pay attention to when purchasing corn varieties?
First, select the species according to the conditions of heat resources. Corn varieties with long growing seasons have good yield performance and high yield potential. However, too much pursuit of high yields and the use of long-term corn varieties will result in insufficient maturity of the corn, insufficient grain, and affect the nutrition and quality of the corn. Therefore, the choice of corn varieties, not only to ensure the normal maturity of the corn, but also can not affect the timely planting of the next crop. The height of the terrain is related to the ground temperature, and the temperature of the post is high. It is advisable to choose late-maturing varieties or mid-late maturing varieties with long growth period; suitable for mid-late maturing varieties in the flat growth period;
Second, according to local production management conditions to select species. The high yield potential of maize varieties is related to production management conditions. Varieties with high yield potential require good production management conditions, and varieties with lower production potential require relatively low production management conditions. Therefore, in areas with high production management and fertile soil and sufficient water sources, corn varieties with high yield potential and high yield potential can be selected. Conversely, breeds with a slightly lower production potential but better stability should be selected.
Third, according to the previous planting and planting. The increase in yield and income of maize varieties is directly related to the planting of the former. If the soybean is planted in the former hoe, the soil fertility is better, and high-yield varieties should be selected. If the sorghum is planted with corn and grows well and has high yield, the variety can be further selected; if the glutinous corn is infected with a certain disease, Seeds that are susceptible to this disease should be avoided when selecting seeds.
In addition, the same variety cannot be continuously planted in the same plot for three or four years, otherwise there will be land infertility and variety degradation.
Fourth, according to the disease selection. Disease is the enemy of corn production, mainly related to soil. The soil nutrients are not balanced, and the ground temperature is not normal. When selecting seeds, the varieties that are not suitable for this condition should be avoided. For example, “Denghai No. 9†corn is only suitable for growing in soils with balanced nutrients and high maturity.
5. Select the seed according to the appearance of the seed. The purity and quality of corn varieties directly affect the yield of corn. When the purity of corn first-class seeds (purity 98%) decreases by 1%, the yield will decrease by 0.61%. The selection of high quality varieties is a favorable guarantee for achieving high yields of corn. The high-quality seed packaging bag is sealed once, with the name and detailed address of the seed company, and the telephone number; the date of manufacture indicated by the seed label, the purity of the purity, the moisture and the bud rate are clear; the shape, size and color of the seed are neat and uniform.
6. Select seeds according to local precipitation and accumulated temperature. According to experience, the amount of snowfall in the winter is small, and the winter is not cold. In the second year, there will be more rainfall in the summer, the accumulated temperature will not be high, and the varieties with long-term growth and long-term growth will not affect the maturity. On the contrary, the amount of snowfall in the winter was very high in the winter, and the winter was very cold. In the summer of the next year, the rainfall was generally low and the accumulated temperature was high. It is advisable to choose varieties with strong drought resistance, and the mid-late varieties can be properly planted in the depression.
Disposable Latex Gloves,Disposable Vinyl Gloves,Nitrile Glove,Latex Glove
ZHANGJIAGANG DINSHENGLIN TRADING CO.,LTD , https://www.dslhouse.com