Cultivation Techniques of Special Early Maturing Maize Varieties
Most of the early-maturing corn cultivation is mainly based on the sale of fresh sticks. The cultivation measures should focus on the early harvesting and processing, and increase the sales price. According to production practices, the following measures should be taken in cultivation management.
Selection of early maturing varieties with short growth period, high yield and stable yield, wide adaptability, strong resistance, and good taste of corn varieties is the key.
The black mulch is used because the black mulch can absorb and store more solar heat radiation than the membrane and the super membrane, thereby increasing the ground temperature, shortening the growth period of the corn, harvesting early, and increasing the price of fresh corn. The test showed that the black film was harvested 2 days, 3 days, and 6 days earlier than the film, super film, and film. The yield per unit increased by 5.8%, 9.5%, and 18.4%, respectively, and the output value per mu increased by 7.2%, 10.3%, and 27.2%.
Appropriate early sowing in general production, the temperature of 5-10 cm is stabilized at 10 °C-12 °C as the suitable broadcasting index of corn, and the early mature maize varieties should be properly propagated early, which is beneficial to prolong the vegetative growth period and make the ear development more fully. The seeds are more full, and at the same time, after low temperature exercise, the plants grow dwarf, the roots are developed, and the lodging resistance is enhanced.
Pay attention to the soil moisture, appropriately increase the density of early-maturing maize varieties, generally should be inferior to the thin land, the fertile land should be thin; the wide and narrow rows should be planted densely, and the row spacing should be thin; the leaves should be washed, the short and narrow varieties should be dense. The leaves are flat, the wide and long varieties are dilute; the plants are tall, the flourishing varieties are dilute, the plants are short, and the plant type is good and the variety is suitable. For example, the planting density of the No. 3 variety of the Chengshang single is generally 4000-5000 in the water, fertilizer and dry land, and 5000-5500 in the dry land.
When the loquat leaves are harvested at the right time, the mammary gland of the middle part of the ear disappears, and the black layer is physiologically mature, which is the best harvest period.
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