The Academy of Agricultural Sciences in Zhumadian issued a summer sesame seedlings in the field management guidance

Cui Xianghua, a correspondent of Zhumadian Radio, Television Railway Media, Wu Shuai

Summer sesame planting in Zhumadian City is mainly concentrated on June 10. Due to high temperature and drought, it has made great difficulties in sowing and field management in summer sesame seeds. Poly waterlogging. At present, Sesame growth in Zhumadian City is in the seedling period. The Sesame Research Office of the Oil Institute of the Academy of Agricultural Sciences brings the following suggestions to the majority of sesame species.

First, check the seedlings, make up seedlings. Observe diligently during the seedling period. If it is rained after the broadcast, the surface forms a plate knot. When the surface is removed in time, when the seedlings are missing, the spare seedlings with the ground or the tail of the ground will be transplanted in time to make up the seedlings in time.

Second, the seedlings, fixing seedlings. To achieve the morning seedlings, set the seedlings in time. After the seedlings come out of the seedlings, "one sparse, two rooms and three sets of seedlings" must be performed. That is, the sesame seedlings are scooped off when the cross leaves are unfolded. The 2-3 pairs of true leaves twice, and the seedlings are set when 4-5 pairs of true leaves. The time for setting seedlings should not be too early. When the diseased and insect pests are severe, the number of seedlings should be appropriately increased. When the seedlings grow steadily, the seedlings should be fixed.

Third, drainage and waterlogging. When encountering rainy weather, dredge the ditch as soon as possible, and discharge the water in the field as soon as possible; after the rain, dredge the fields, gaps and waist ditches in time to make emergency preparations for the next rainfall to ensure that the fields in the field can be reduced overnight. Stain. In the case of lowering the humidity of the block, in time, cultivation in time, quickly reduce the humidity of the field, increase the transparency of the soil, and reduce the time of overwhelming crops to ensure that the sesame quickly recovered.

Fourth, timely topdressing. When rainfall will still be continued and machinery cannot enter the ground, it will timely adopt drones to spray fungicide, growth regulators and leaf fertilizer. Generally, about 7 kg of urea acres; leaf surface spray 1%urea+0.2%potassium dihydrogen phosphate solution; spray an appropriate amount of mossin, growth regulator, NEB bacteria fertilizer, etc.

5. Prevention and treatment of grass pests. The survey found that insect pests are mainly: small tigers, cotton bells and beet night moths. The main diseases are: withered disease, stem dot disease, leaf spots, etc., and some plots occur severely. Weeds are common, mainly: horse Tang, wild amaranth, fragrant aconite, purslane, sausage, ramie, self -raw wheat seedlings, etc.

1. Pest control: comprehensive prevention and treatment measures combined with prevention, agricultural prevention, physical control, and chemical prevention in the prevention and control of pests.

Agricultural prevention and control: timely removal of weed on the field, do not pile up weeds in the field.

Physical prevention: Early in the morning, digging and killing the small tiger larvae near the root of the seedlings and plants.

Chemical prevention: spray control, 34-40 ml/mu of 5%chlorophenzylemamide before the evening, or 4%of 40 grams of 40 grams of methacosol-salt micro-emulsion, and 30 kg of water. It can also be selected from 20%high-chloride cream oil (a net of silkworm snails), each (10 ml) spray sesame seedlings 10-15 kg of water.

You can also use poison bait to lure small tigers. With 90%crystal enemies 50 grams or 50 ml of phosphoric oil, add 250-500 ml of water, spray it evenly on 5 kg of fried wheat bran. In the evening, a small pile was sprinkled in about 5 meters in the evening. Or use 50%phosphorus or 90%of the enemy's 800 times liquid to mix 20-25 kg of fresh grass to make fresh grass poison bait and sprinkle it in the evening.

2. Disease prevention and treatment: 325 grams/liter phenyl -pyramidite suspension 40 ml/mu, 28%of Jinggang · polymorrhin suspension 200 ml/acre 40%benzo pyrazole water dispersed granules 20-30 grams/mu, 25%pyrazole ether suspension 40 ml/mu, 70%methyl sulfonic wettable powder 75 grams/mu spray (If it encounters rain above the rain, spray it once after the rain) to prevent the stem blight, withered and vertical disease during sesame seedlings.

3. Grass damage prevention: Field blocks mainly based on the weeds of grasses, before 6 leaves of weeds, can be used as follows by any kind of herbicide, according to the recommended dose, 30 kg/mu ～ 40 kg/mu for stems and leaves treatment according to the recommended dose The

(1) Essence 4 g/mu ～ 6 g/mu; (2) Espermidohwen grass spirit 3.6 g/mu ～ 4.8 g/mu;

(3) High -efficiency fluororiraholin 3.2 g/mu ～ 4.8 g/mu; (4) Essence pyromone grass glory 7.5g/mu to 10 g/mu; mu.

For broad -leaved weeds and fragrant aconite, 480 grams/liters of 90 grams/acres can be used for control. Grass extinguishing pine has mild medicinal damage to sesame seeds, which can be relieved in the later period, and the symptoms of drug damage disappear.

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