Detailed Explanation of Key Corn Field Management Techniques
Corn is the most common crop and the main source of income for many farmers. To achieve a high yield when planting, field management techniques for corn are especially important. According to the growth stages of corn, management can be divided into seedling stage management, jointing and tasseling stage management, and flowering and fruiting stage management. Let's take a look at the detailed management techniques.
1. Seedling Stage Management
The seedling stage of corn is from emergence to before the jointing stage, generally when it grows to 7-8 true leaves, at which time the leaves are dark green and broad and thick. At this time, seedling hardening measures should be carried out well. First, manage the soil dryness and moisture well, maintaining a condition of dry on top and moist below, with soil moisture at about 60%. This can promote root development and expansion, and can also make the roots go deeper, achieving the purpose of hardening seedlings and promoting strong growth, which is beneficial to water absorption and drought resistance in the mid-growth period. In addition, drought prevention and waterlogging prevention measures should also be done well. When the weather is dry, water in time. During rainy weather, to avoid waterlogging of the root system, open ditches in time to drain water and prevent waterlogging.
2. Jointing and Tasseling Stage Management
The jointing and tasseling stage is mainly the period from jointing to tassel emergence, generally lasting one month. At this time, vegetative growth and reproductive growth proceed together, mainly dominated by ear differentiation. At this time, the main attention should be paid to water management. During the jointing stage, spring drought is very likely to occur. Whether to water depends on local precipitation. During this period, if local precipitation is insufficient, water in time to maintain the plant's water needs. Also, at this time the temperature rises, transpiration is greater, water is easily evaporated, and the possibility of drought is also very high. Timely irrigation is needed to obtain high yield. During the corn tasseling period, the plant is extremely sensitive to water. When drought occurs, watering is necessary, otherwise yield will be affected. If heavy rain occurs, drain water in time to prevent waterlogging, and in windy weather, cultivate soil in time to prevent plant lodging.
3. Flowering and Fruiting Stage Management
The flowering and fruiting stage is the period from corn tasseling to maturity, generally lasting one and a half to two months. This is the key period that determines corn yield. Factors affecting its yield include pollination, water, and light. During tasseling and flowering, if water is insufficient, plant pollination is poor, the seed-setting rate is low, and it is also easy to cause premature aging of stems and leaves. At this time, watering is needed to keep the soil moist. During the grain-filling stage, watering should be done cautiously, and blind watering is not advisable. In the early grain-filling stage, water should be properly controlled, and in the later stage, water should be increased to achieve the purpose of increasing grain weight. This is also the time when plants are prone to premature aging, so fertilize in time to prevent premature aging of plants, and also take good drainage and waterlogging prevention measures during heavy rain to avoid excessive soil water accumulation, which leads to poor permeability, prevents roots from breathing normally, and affects nutrient absorption. In addition, increasing ventilation and light transmission between plants can reduce the occurrence of empty stalks. When pollination is poor, timely artificial supplementary pollination should be carried out.
The above are corn field management techniques. We hope they can help you. To learn more about corn planting knowledge, please stay tuned to us.