Latest Technical Methods and Tutorial for Corn Field Management
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, it can be divided into seedling stage management, jointing and ear elongation stage management, and flowering and fruiting stage management. Let's take a look at the detailed management techniques.
1. Seedling stage management
The corn seedling stage runs from emergence to before the jointing stage, generally when the plant has grown 7-8 true leaves, at which time the leaves are dark green and broad and thick. At this time, measures to promote seedling root development should be carried out well. First, manage the soil dryness and moisture well, keeping the 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 grow deeper, achieving the purpose of promoting strong seedlings, which is beneficial to water absorption and drought resistance in the middle growth stage. In addition, drought prevention and waterlogging prevention measures should also be carried out well. Water promptly during dry weather, and during rainy weather, to avoid root waterlogging, open ditches promptly to drain water and prevent flooding.
2. Jointing and ear elongation stage management
The jointing and ear elongation stage mainly refers to the period from jointing to tassel emergence, generally lasting one month, during which vegetative growth and reproductive growth proceed together, mainly dominated by ear differentiation. The main thing to pay attention to at this time is water management. During the jointing stage, spring drought is very likely to occur, and whether to decide to water depends on the local precipitation. During this period, if local precipitation is insufficient, water promptly to maintain the plant's water needs. Also, at this time temperatures rise, transpiration is greater, water is easily evaporated, and the possibility of drought is also very high, so timely irrigation is needed to obtain a high yield. During the corn tasseling period, the plant is extremely sensitive to water. When there is drought, watering is a must, otherwise it will affect the yield. If there is heavy rain, drain water promptly to prevent flooding, and in windy weather, earth up promptly to prevent the plants from lodging.
3. Flowering and fruiting stage management
The flowering and fruiting stage runs from corn tasseling to maturity, generally lasting one and a half months 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 also easily leads to 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 with caution, and blind watering is not advisable. In the early grain-filling stage, water should be appropriately 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 fertilizer should be applied promptly to prevent premature aging of the plants. Measures to drain water and prevent flooding during heavy rain should also be carried out well to avoid excessive soil water accumulation, which leads to poor aeration and prevents the roots from breathing normally, affecting nutrient absorption. In addition, increasing ventilation and light transmission between plants can reduce the occurrence of empty stalks. When pollination is poor, artificial supplementary pollination should be carried out promptly.
The above are corn field management techniques. We hope they can help you. If you want to learn more about corn cultivation, please stay tuned to us.