Jingan Town, Qixiang District, Nanjing City, Ma Jiulan phoned June 30, said that his 20 acres of dry direct seeding of dry rice seeds after the application of benzaltine for soil sealing treatment, due to a long time after the field had water accumulation, only 20 % of rice emerged (5 kg per mu).
This field has continuously broadcasted rice for 3-4 years. The occurrence of weedy rice in the field is also very serious and almost no rice seedlings can be seen. She asked that the rice in this field be destroyed together with the weedy rice, and then the rice seedlings should be planted without delay.
Weedy rice is a rice with weedy characteristics. It is also an Oryza plant with cultivated rice. There is no effective selective herbicide control during the growth period of cultivated rice. Compared with cultivated rice, it has matured early and has strong shattering power. It matures while falling grains. It has been used for a few years to produce large quantities of weedy rice in the field where rice seedlings are planted and seeded in a continuous manner for several years. This type of plot should not be broadcast live rice, it is best to change the transplanted rice. After rice was transplanted to live plants, the herbicide containing the transplanted rice field containing acetochlor was used to seal the soil to inhibit the germination of weedy rice seeds in the residual field and reduce the damage of weedy rice.
According to Ma Jiulan, the number of weedy rice in direct-seeded paddy fields is high, and rice seedlings are rarely attacked by herbicides. Rice and weedy rice can be killed with paraquat, glyphosate, and other herbicides. The suitable sowing time for rice seedlings in Nanjing is from mid-late May to the end of June. The planting time will be delayed and the heading date will be postponed accordingly. However, if early-maturing late-season indica rice or middle-maturing indica rice commonly used in the region is selected, it is usually Heading before mid-September, it will be safe for earing and maturing. Due to the short growing period, basic seedlings should be appropriately increased in production to ensure sufficient panicles.
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