The reason of rice lodging is 1, the variety is not lodging-resistant, the plant internodes are short, the stems are stout, the leaves are erect, the flag leaves are short, and the roots are developed, so it is not easy to lodging. On the contrary, it is a lodging variety. Planting lodging varieties is the key to prevent rice lodging. 2. Unreasonable planting density: too many planting holes per mu or too many seedlings per hole seriously affect the ventilation and light transmission of rice, resulting in poor root growth, weak plant growth and poor growth between basal nodes, which is easy to cause lodging. 3. Inadequate fertilizer and water management, one-sided re-application of nitrogen fertilizer, resulting in excessive plant growth, premature closing of branches and long jointing, and excessive leaf area at panicle stage, leading to lodging; Long-term deep irrigation leads to long internodes at the base of stem, early death of lower leaves and underdeveloped lodging of roots. 4, pests and diseases pest control is not timely, stem tissue is destroyed, easy to cause lodging.
I can't get up again after I dropped my meal. The water in the field should be drained. If rice is filling now, pesticides should be applied to prevent functional leaves from becoming moldy. Keeping green leaves for a long time is beneficial to promote filling and increase grain weight. Rice planthoppers should also be prevented. Spray with bendazole, hexaconazole+thiamethoxam, pymetrozine+potassium dihydrogen phosphate+sodium nitrophenolate, and spray again every 7 days.