Huanghuai area this year summer maize sowing time is 3 to 5 days in advance and uniformity is good, looks like the overall level of better than all the year round. But affected by el nino happened lay particular stress on, rainfall space-time distribution, parts of be soiled of drought and waterlogging in different degree, the overall development process. At present, most of huanghuaihai summer corn at grain filling stage, is the key to yield formation period. In view of the recent drought of sustainable development, and the ministry of agriculture organization consultation with experts, put forward to strengthen the management, drought resistance and disaster mitigation, efforts to seize the corn harvest field management technical measures.
It is a positive irrigation guaranteed spike grain. When soil moisture content is below 60%, depending on the soil moisture and's timely irrigation, meet the needs of filling stage for corn moisture, avoid a "card" neck drought. Maize growth later period rainfall probability is bigger, to prevent a quirk of drought and flood, dredge drainage ditches, ahead of schedule in a timely manner to eliminate the field water, lower water level and the soil moisture, prevent stain elimination and prevent lodging, reduce stalk rot, safeguard the normal development of corn and male spike and late grain-filling smoothly.
The second is scientific fertilization for grain weight increase. This year because of its high prophase rainfall and fertilizer use heavy loss. There are signs off fat land plants growing scientific fertilizer, try to take the corn roots topdressing urea, prevent burning. Huge bellbottom period failed to fertilizer plots of land, should repair as soon as possible after available nitrogen fertilizer; For some leaves turn yellow, root system to absorb the weaker plot, spraying on the leaf of urea and potassium dihydrogen phosphate mixture, promote dry matter accumulation, increase grain weight.
3 it is preventing pest to reduce the hazards. Corn plant diseases and insect pests occurrence and prevention and cure is difficult, at later growth stage in growth later period to spray pesticides, fungicides, again reduced panicle base, reduce the disease of diseases and pests. To strengthen the monitoring of diseases and pests, in a timely manner to carry out and materialize TongFang rule. Focus on the prevention and treatment of corn borer, cotton bollworm, peach borer moth, NianChong, starscream, aphids and other pests and diseases such as leaf spot, stem rot.
Four is duly late harvest increase grain weight. Continue to vigorously promote late harvest of corn production technology, conditions allow the corn harvest will be put off to early October, as far as possible to the grain base layer, black milk line basic disappeared, which meet the physiological mature after harvest, the maximum guarantee the corn grain grouting and fully mature, increase production. Depending on the variety characteristics and late promotion mechanical pick rods and grain drying conditions receive, integrates mechanical harvest stubble.
Five is to promote deep loosening deep tillage and straw returned. Deep fine harrow, drought and flood. Combined with the site preparation before wheat sowing, actively promote deep deep tillage and straw counters-field technology. Using a large straw crusher fine powder commune straw in time, fill nitrogen, accelerate decay; Cut up straw and root crop further using heavy disc harrow, harrow after the commune and gland in time, make a straw, fertilizer and soil mix, effectively improve soil structure, raise soil water penetration, to water, fertilizer and fertilizer ability, continuous production basis for wheat corn anniversary.
More grain machinery related information, also please continue to focus on our official website, global food machine net: http://www.worldlj.com