How to manage the three major crops in August and September

corn
1, remove the no effect ear. A corn can grow several ears, but mature only 1-2, the rest of the light sticks do not granulate, or there are several water particles, the masses call them, each corn keeps 1 ear, most not More than two, all others were removed to ensure adequate panicle nutrient and water supply, full grain, and increase grain weight.
2. Cut empty stalks and plantlets. According to the survey, due to factors such as variety, density, and soil fertility, there will always be some empty stalks in the corn field, generally about 3% to 5%. There are also some low-slump plants that consume nutrients and water, and also affect ventilation. Light, plants that cause normal growth and development are affected. Therefore, it is necessary to go to the field for inspection and find empty stalks and small plants and remove them immediately.
3, standing stalks shed skin drying. The drying of corn stalk stalks is a successful experience, which has many advantages, namely, accelerating dehydration, promoting early maturity, increasing yield, and improving quality. According to surveys, drying corn stalks and stalks for 20 days, moisture can be reduced to about 18%, and early maturation. - 7 days, increase production 5% -7%, drying time is very important, need to be strictly controlled, neither too early, but can not be too late, prematurely affect the grouting, reduce production; too late to lose meaning, the best The time is at the end of wax production. When the grain forms a layer of hard cover, it can be carried out by hand when it is not slurried. The method is very simple. Open the loquat leaves and the grains are all exposed, but do not break the handle, otherwise it will affect the maturity.
4, put autumn ridge, get big grass. The time is to be carried out in the late stage of corn grouting. To avoid excessive fibrous roots and cut off the leaves, put the autumn ridges, and take the benefits of big grass, it is not only beneficial to the light ventilation of the corn, loosening of the topsoil, and raising the temperature of the ground, but also reduce the time. The grassland damages the next year.
5, timely receipt. Corn does not generally freeze without harvesting, giving full play to the postharvest action of corn.
Soybean
1, using a combination of chemical and artificial methods to remove the net soybean weeds. The main use of stem and leaf treatment, grass 3-4 seasons weeds, with 15% fine stable kill or 5% fine grass gram grams, etc., 750-1000 milliliters of hectares or use of 10.8% of high-quality epimedicine emulsifiable concentrate 450 milliliters, Or use 6.9% Wei Bo concentrated emulsion 750-1000 ml, or use 12.5% ​​to take the net emulsion EC 1250-1500 ml, 200 kg spray control of water. To control broad-leaved weeds, use 25% fufentrix 1000-1500ml per hectare and spray 200kg of water. High-fat, high-protein soybeans are best to be manually weeded, and the net should be taken in the late period.
2, chase after the end of drumming grain fertilizer. Soybeans need more fertilizer, especially nitrogen fertilizer. The rhizobial bacteria can only meet 1/2-1/3 of the nitrogen requirement of soybeans. The fertilizer requirement of soybeans is 20.4% of the total amount of fertilizer needed for emergence and flowering, and 54.6% for flowering to drum grain, and 25% for drum grain and ripening. Acres urea 5-7 kg, can increase production 7% -10% or so, the method of ditching or acupuncture, deep recovery of 10 cm or more to improve the utilization of fertilizers; grain fertilizer to take root dressing, Mushi potassium dihydrogen phosphate 0.2 kg, Or zinc sulfate concentration of 0.2% -0.3% 750 kilograms.
3, anti-soup soybean borer. In August, it was a critical period for the control of soybean borerworms. When the insecticide rate of soybeans reached 5% or more in the previous year, prevention and control targets were achieved. The ridged land is well-prepared, with 80% of dichlorvos 1500-2000 ml per hectare, made of poison sticks, fumigation control, every 4 rows of ploughs, every 5 meters inserted, ridged land, available chrysanthemum The control of lipid pesticides can also be controlled by biological measures such as Trichogramma beetle and Beauveria bassiana.
Rice
1. Work hard on irrigation. We must do a good job in increasing revenues and expenditures to ensure the irrigation of paddy fields. We should do everything possible to solve the problem of thirsty water in paddy fields. Water management should be achieved by adjusting water to water, raising roots by water, and keeping leaves to protect leaves. The booting, heading, and flowering stages are the maximum periods for paddy rice water demand, and it is also the sensitive period for water demand. It must ensure sufficient water supply. Into the milk-milk period to take intermittent irrigation method, that is, after a single irrigation, the water layer will naturally dry to the basic water-free layer of the field, and water will be poured when there is water in the foot socket; When the water layer is naturally drained until the field surface is completely dry, and the water in the footwell is about to be waterless, the water is completely stopped during the ripening period.
2, in the fertilizer on the flower. In August, rice was mainly topped with panicle fertilizer. In the 8-10 leaf stage, the young panicles began to differentiate and began to top-pitch panicle fertilizer. The panicle fertilizer was applied twice in two rounds. The first time, the total amount of panicle fertilizer was 60% when the poured leaves were just exposed, and the panicles and branches were promoted. The number of stems and one spikelet were differentiated, and the number of branches was increased one at a time to fight for big spikes. The second time the flag leaf was exposed and other panicle fertilizers were applied. The grain fertilizer is carried out about 15 days after heading (from heading to full heading). See seedlings, seeing the sky, and looking at the ground. Generally, 3-4 kg of ammonium sulphate, 1 kg of potash, or 0.2 kg of potassium dihydrogen phosphate. For extra-root fertilizer.
3. Make an article on disaster prevention. Mainly do a good job of weed control, pest control, according to different weed communities, select suitable for the road of high efficiency, low toxicity, low residual herbicide, early and effective kill weeds, AA grade green food rice and organic food rice, can not Weeding by chemical methods can only be performed by manual methods. Prevention of disease is mainly to control rice blast disease, strengthen forecasting and control of the disease center, mainly control the ear, stem, grain pods, with 30% new grams of powder or with 40% rice bran (Fuji No. 1) spray control.

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