How to control diseases and insect pests in corn planting? High-yield planting techniques of Maize

How to control diseases in corn planting? Corn is a key crop in our country. When planting corn, planting staff should grasp the key points of technical knowledge, choose more suitable farming methods according to the times, and do a good job in the prevention and control of corn diseases. then the network editor will briefly talk about corn yield-increasing cultivation techniques, looking forward to some assistance to everyone.

1 planting techniques for increasing maize production

1.1 Variety selection

Select local high-quality varieties, such as Jindan 33, 34, 35, 36 and 472 as key varieties.

1.2 comb quickly

Select the fast planting of the land with flat terrain, rich soil and good drainage pipe irrigation standard, and replenish water and moisturize the land immediately after leveling the land in the deep ploughing and turning work before planting.

1.3 planting methods

The selection of mechanical equipment for planting needs to combine the characteristics of plastic film mulching, which can not only raise the ground temperature, but also consider the needs of maize growth and development, and prevent the outflow of soil water.

1.4 Scientific research on fertilization

1.4.1 fertilization standard: heavy fertilizer, light seedling fertilizer, skillful fertilization.

1.4.2 Maize fertilization should take into account the characteristics of varieties, index values and the details of soil, implement the technology of deep fertilization, and apply base fertilizer, potash fertilizer and phosphorus and potash fertilizer into * land at one time according to special proportion.

1.4.3 before the seeds germinate, choose to spray the appropriate medicine at a temperature where there is no wind or at a relatively low wind speed.

(2) the technology of disease control

2.1 Control of corn borer

When corn borer appears in the heart and leaf stage of corn growth and development, it can be equipped with 1.5% phoxim particulate liquid per mu to carry out spraying control with 1-2kg. After the corn enters the bud, deltamethrin EC can be used to carry out control, or technical control dipped in filaments can be selected.

2.2 Control of corn rust

2.2.1 choose mixed varieties with strong disease resistance and reasonable close planting.

2.2.2 improve the methods of fertilizer and water management and improve the disease resistance of maize main stem.

2.2.3 ensure the moisture required for the growth and development of corn.

2.2.4 increase the release of potash fertilizer.

2.2.5 seed dressing should be carried out before corn planting.

2.3 Control of large spot disease and small spot disease

2.3.1 physical method: clean up the clean and diseased corn remains.

2.3.2 Organic chemistry: spray control with 50% triadimefon wettable powder, equipped with 500 times the liquid.

2.3.3 use 70% methyl topiramate wettable powder and 75% chlorothalonil wettable powder into 600 times and 700 times liquid, spray 2-3 times continuously.