Field Management Technology of Maize

Corn is the most common crop and the main source of income for many farmers. in order to achieve high yield, the field management technology of corn is particularly important. According to the growth stage of maize, it can be divided into seedling stage management, jointing and long ear stage management and flowering and fruiting stage management. Let's take a look at the detailed management techniques.

1. Seedling stage management

Maize seedling stage is before emergence to jointing stage, generally growing to 7-8 true leaves, when the leaf color is thick green, the leaf is broad and thick. At this time, it is necessary to do a good job in squatting seedling measures, first of all, do a good job of soil dry and humidity, maintain the upper dry and lower wet condition, soil moisture should be about 60%, which can promote the development and expansion of the root system, but also make the root system take root deeper, and achieve the purpose of squatting seedlings to promote strongness. it is beneficial to water absorption and drought resistance in the middle stage of growth. In addition, it is also necessary to do a good job in drought and waterlogging prevention measures, timely watering in dry weather, root waterlogging in overcast and rainy weather, and timely trench drainage and waterlogging prevention.

2. Management of jointing and long heading stage

The jointing and long panicle stage is mainly in the period from jointing to tassel, which usually lasts for one month, when the vegetative growth and reproductive growth are carried out together, mainly panicle differentiation. At this time, the main attention is water management, in the jointing stage is very easy to encounter spring drought, whether it is determined to watering depends on the local precipitation, during this period, if the local precipitation is insufficient, it is necessary to timely watering to maintain plant water demand. And at this time, the temperature rises, transpiration is greater, water is easily evaporated, and there is a great possibility of drought, so it is necessary to irrigate in time to obtain high yield. During the period of maize heading, it is extremely sensitive to water, and it must be watered in case of drought, otherwise it will affect the yield. In case of heavy rain, it is necessary to drain and prevent waterlogging in time, and the windy climate should cultivate soil in time to prevent plant lodging.

3. Management of flowering and fruiting stage

The flowering and fruiting period usually lasts from one and a half months to two months from heading to maturity, which determines the critical period of corn yield. The factors affecting its yield are pollination, water and light. When heading poplar flowers, water is insufficient, plant pollination is poor, seed setting rate is low, and it is easy to lead to premature senescence of stems and leaves, so it is necessary to water to keep the soil moist. Watering during the filling period should be prudent and should not be watered blindly. It is necessary to properly control water in the early stage of filling and increase moisture in the later stage to achieve the purpose of increasing grain weight. At this time, it is also caused by premature senescence of plants, timely fertilization to prevent premature senescence of plants, and drainage and waterlogging prevention measures in heavy rain climate to avoid excessive soil water accumulation, resulting in poor permeability, so that the roots can not breathe normally and affect the absorption of nutrients. In addition, the increase of ventilation and light transmittance between plants can reduce the occurrence of empty rod phenomenon, and artificial pollination should be carried out in time when pollination is not good.

The above is the corn field management technology, hope to help you, want to know more corn planting knowledge, please follow us.