(1) Open water source, scientifically resist drought: For drought-expressing corn fields, we must overcome the paralysis thought to wait for rain from farmers, make full use of all drought-resistant water sources, open ditches, divert canals, and timely irrigation, expand irrigated areas, and strive for fast pouring. Pouring, pouring well. At the same time, according to the actual situation, promote the use of sprinkler irrigation, furrow irrigation, sub-stage irrigation, small irrigation, water pipeline, alternating furrow and other water-saving irrigation technology, improve water use efficiency, reduce the adverse effects of high temperature and drought on corn. (2) According to local conditions, classification management: According to different seedling conditions, the irrigation sequence should be rationally allocated, that is, first irrigation of corn in flowering and silking stage, then irrigation to corn in the big bell-mouth period, and corn in the post-irrigation seedling stage. For irrigated plots, weeds should be ploughed in time to reduce the evaporation of water in the fields. (3) Fertilizer and water attack to promote growth and development: For corn in the big bell-mouth period, it should be combined with irrigation or precipitation, and timely application of panicle fertilizer, can be about 25 kg of urea topdressing. For drought lands without watering conditions, spraying foliar fertilizers in time can be performed. Potassium dihydrogen phosphate 800-1000 times or Dryland 500-1000 times can be used to cool and humidify the plant to increase drought resistance. (4) Artificially assisted pollination and improved seed-setting rate: For maize fields during flowering and pollination period, high-temperature and drought will cause pollen and filament vitality to decline, affecting pollination and fruiting. Artificially assisted pollination should be used on the basis of pouring flowering water in order to improve the seed setting rate. (5) Strengthen pest control: Under drought conditions, it is easy to aggravate pests, so it is necessary to strengthen forecasting and early detection and prevention. Should focus on prevention of corn borer, cotton bollworm, three generations of armyworm, aphids and other pests. To control corn borer, it can be used in the big bell season of corn, 1.5% of phoxim granules per acre, and sprinkled into the heart to prevent and cure; control armyworm, foliar spray: use 4.5% beta-cypermethrin EC 40 ml /Mu or 48% chlorpyrifos 50 ml/mu full field spray. Control locusts, corn leaves, with 3% per acre phoxim granules sprinkled in the heart of leaves 1.5-2 kg, control corn borer, and corn borer. It is also possible to spray 10% cypermethrin or 2.5% sediflavon, 30 kg per acre with 20 kg water, to prevent both corn borer and corn borer. Spray control. This is a critical period for the control of corn. In the early stage of maize picking, 3% acetamiprid or 10% imidacloprid, 15-20 grams per acre, spray 50 kg of water, and can also be treated with poisonous sand, 40% per mu. Emulsion 50 ml, dilute with 500 liters of water, with 15 kilograms of fine sandy soil, and then evenly spread the poisonous soil evenly on the plant leaves, 1 g per plant.
This hot air circulating drying oven is tray mode intermittent universal drying equipment which is high in utility, widely used in medicine, chemical industry, food industry, light industry, electronics and other fields.
1.This drying machine uses electric heating elements as the heat sour
2. The material is stainless steel,keep the machine durable using.
3.After switching on the electric power, switch on the fan. The rotational direction of fan shall consist with the mark.
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