Summer sowing is approaching, so the summer corn planting has become an important work. We will select five key measures for selecting good varieties, doing seed processing, mechanical semi-machinery sowing, ensuring adequate lyrch, and preventing and controlling pests and weeds in time to ensure that “miaoquan, Miaoqi, Miaoheng, Miaozhuang†will be used for the production of summer maize. Build a solid foundation.
1, selected fine varieties. The selection of summer maize varieties in our city should be based on medium-early-maturing varieties, supplemented by medium-late-maturing varieties, and reasonable matching according to different sowing patterns. The varieties suitable for planting include Zhengdan 958, Jingdan 28, Dandan 20, Xingkang 2 and Chengyu 18, and local varieties should be selected according to local conditions.
2, do a good job in seed processing. Before sowing, pay attention to seed selection, drying seeds, and do a good job of seed coating or seed dressing to ensure the quality of seedlings and prevent plant diseases and insect pests. If the seed coating agent contains only one component of a bactericide or insecticide, it should be re-dressed with insecticides or fungicides. Uncoated seeds are seeded with insecticides and fungicides before sowing. The seed dressing must first be mixed with insecticides, and then dried and mixed with fungicides. Germicide can be used carbendazim, tebuconazole, etc., insecticides available phoxim and so on.
3, mechanical semi-machine sowing. For mechanized sowing plots, the harvester with the straw smashing and cutting and throwing device shall be used for wheat harvesting. The wheat stalks are piled in the plot, and the wheat straw shall be evenly spread or removed before sowing, and the seeder operating speed To control within 4 km / h, avoid high-end run to prevent the emergence of corn seedlings or lack of seedlings off ridge. The interplanting plots should focus on the promotion of semi-mechanical seeding techniques to avoid problems such as difficulty in ensuring the density of artificial on-demand and inconsistency of broadcast depth. Advocate precision seeding, fine seeding, seed selection, and use of seeds of good quality, strong vigor, high bud potential, and uniform and consistent.
4, to ensure adequate sensation. Adequate lyricism is one of the preconditions for guaranteeing corn seedlings, Miao Qi and Miao Zhuang. In the period from the sowing of corn to the seedling stage, the city suffered from drought and less rain in most years, which seriously affected the growth of corn. The shovels sow the corn, so that they must pour the headwaters in time to sow the soil moisture and ensure that the seeds germinate and emerge normally. In the event of dry weather, corn should be timely watered to ensure sufficient moisture and ensure the normal growth and development of corn seedlings.
5, timely control of pests and weeds. First, we must do a good job of chemical weeding. Weeding in the corn field can be controlled by herbicides such as ethylene dimethacrylate prior to seedlings after corn sowing; spraying with nicotinamide and desulfurizing agent can also be applied at the 3-5 leaf stage after emergence. The sulfosulfuron-methyl suspension was applied to the control of spraying. When spraying nicosulfuron-containing herbicides, it is forbidden to add organophosphorus pesticides mixed spray, and organophosphate pesticides should not be used for a week before and after spraying to avoid phytotoxicity. In addition, attention should be paid to the prevention and control of diseases such as rough dwarf disease, thrips, corn ploughing, and planthoppers, and in particular attention should be paid to the development of the two-point tailfly moth and corn bacterial type that have emerged in recent years and are heavy. Stem rot and other diseases and pests prevention and control work.
Biotechnology,Tebuthiuron,Trifloxystrobin,Flufenacet,Amicarbazone,Prothioconazole,Sulfentrazone
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