Spring sowing crop management technology
One, cotton
In the middle and early April, cotton seedbeds will be sown in succession. The key to ensuring that all seedlings are broadcast is to ensure that all measures are put in place.
1. It is determined to promote the planting of "China Cotton Institute 72" vigorously. This variety has been approved by the country and has been widely promoted throughout the country. It has been demonstrated and promoted in Yancheng City for five years. It has also been demonstrated and planted in our town for four years. It has strong resistance to diseases and disease resistance, and it has large peaches, high yield, and strong resistance. It is suitable for planting in my town.
2. Seed treatment From the practice in recent years, although insect-resistant cotton is coated, the effect of disease control is extremely poor. To better control seedbed diseases, seed treatment must be carried out. Use 10% Banfu Mixture 100 ml (Scorpion Bottle) directly mixed with quail cotton 4-5 kg, after coating the next species.
3, the next time the general temperature is stable above 16 °C, the ground temperature is above 14 °C, you can sow. My town ends before April 8th and chooses clear weather to blitz the next race to ensure that all the seedlings are harvested. Before the next seed selection, drying seeds, increase the emergence rate of cotton.
4. After planting cover seeds under the chemical weeding cotton seedbed, press each standard bed (about 20 torr) with 36% Drupillin EC 4–5 ml/branch and dilute 2 kg evenly (do not repeat). Membrane compaction.
5, underground pest control seedbed in the bed before the application of 3% percarbetamine granules 150-200 grams or 5% diazinon granules 150-200 grams to control the underground pests.
6, clear trenches in the shed good bracket fixed net rope on the basis of digging around the drainage ditch to ensure the smooth flow of water.
Second, corn
1. Selection of varieties with strong disease resistance Currently, the varieties with better disease resistance to maize rough dwarf are Daiyu No. 16 and Suyu No. 22, and it is recommended to grow these two varieties.
2. The selection of safe sowing date has become a major factor affecting corn yield. It is necessary to stagger the sensitive leaf age of corn susceptible to the transmission period of Laodelphax striatellus in order to reduce the damage of corn rough dwarf disease. Spring maize must be sown before April 15 to ensure that the safe leaf age of more than 10 leaves can be seen at the end of May, and that corn in the “late spring†and “early summer†seasons must not be planted. Summer corn must be sown after June 15.
3. Adjust the cornices and eradicate the cultivation of weeds and corns. Try not to interplant crops with high bases such as wheat bran, etc., or combine crops with long symbiosis periods (such as garlic fields, etc.) before the crops. Timely eradication of corn field, field weeds. Glyphosate or paraquat can be used for chemical weeding prior to sowing, which can aggravate the living environment of SBPH and can greatly reduce the number of SBPH.
4, corn basal fertilizer with 40% of the Maple Leaf three-element compound fertilizer 30 kg plus 1.5-2 kg of zinc fertilizer open pond deep facilities. The use of zinc fertilizer not only meets the needs of corn growth, but also enhances the ability to resist corn rough dwarf disease.
5, underground pest control in the corn sowing line 2 - 3? Department sprinkled 3% carbohydrate granules 1.5 - 2 kg per mu or 5% diazinon granules 1.5 - 2 kg mixed fine soil 20 kg scattered into the trench cover soil After sowing the corn, it can not only control the underground pests, but also control the damage of the planthoppers.
6, in addition to the technology in the corn planting cover soil per acre with 50% acetochlor EC 70ml watered 40-50 kg spray. Whenever the situation is poor, we must increase the amount of water, otherwise weeding effect is poor.
YT-T13
YT-T13
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