Suggestions on Cordyceps Control in single cropping Rice Seedling Field

1. Weeding in seedling field

1. Weed before ploughing

10 days before ploughing, 41% glyphosate 150ml / mu or 10% glyphosate 1000 ml / mu flushing 30kg fine spray was used to control the old grass before sowing.

2. Weeding after sowing

① was sprayed with 17.2% benzepidan wettable powder (Youhebao) 210g / mu 45 kg fine spray 2 days after germination and sowing.

② used 40% benzyl propyl grass wettable powder (direct sowing net, Leji live green) 25g / mu flushing 45kg fine spray during the seedling needling period.

Any of the above methods can control weeds in the seedling field after sowing.

2. Pest control and disease prevention in seedling field

In recent years, the occurrence area of stripe blight in our county is gradually expanding, and the harm is increasing year by year, so it is very important to control the gray planthopper in seedling field, direct seeding field and field. At the same time, the damage caused by sparrows and rats during the sowing of single cropping rice in recent years is also quite serious, so it is necessary to do a good job in repelling it.

1. Seed dressing, replacing carbofuran to ward off sparrow mice and control rice thrips: the rice seeds after seed soaking and sprouting are added with 35% carbosulfan (mixed into rice and good Anwei) according to the proportion of 5 grams of powder per kilogram of seeds. And turn back and forth to mix the seeds so that the chemicals are evenly attached to the seed surface and sowed with mixing.

2. Lice control and disease control: 10% imidacloprid wettable powder (thumb, Bidan) 40 g / mu 30 kg spray was used to control gray planthopper from two leaves to three leaves.

3. Transplanting with medicine: 5 days before transplanting, 20% triazophos EC 100ml / mu flushing 30kg per mu of seedling field was sprayed to prevent late-onset borer eggs and early-onset leaf rollers eggs into the field.

Matters needing attention

1. Seeds must be accelerated to sprout and sow, and it is appropriate to sprout half a grain. When mixing seeds, the bud valley should be wet, the action should be light, and the storage time should not be too long after the seeds are mixed.

2. After sowing, weeding and spraying should be uniform, enough water should be used, and no re-spraying or leakage spraying should be allowed. The seedling board should be kept moist during or after application, and the seedling board should be irrigated in time during the period of two leaves and one heart, and weeds should be controlled by water.