Due to the advanced planting time of rice this year and the relatively low temperature in the recent past, some fields of paddy rice appeared in their pockets.
Sitting in the pocket occurs when the rice begins to deliver, peaking at the peak of delivery. The affected rice plants are short and the tillers are reduced. The tips and leaf margins of the lower leaves fade and turn yellow. Pulling up the diseased plants, we can see that the roots are aging. The whole root system is yellowish-brown or dark brown. There are no or few new roots or fibrous roots. Some rice plants have dark or rotted roots and emit hydrogen sulfide odor. This disease is more common in fields with poor soil permeability, high groundwater levels, and long-term accumulation of water.
For the prevention and treatment of rice satiety, according to the genetic traits and normal physiological needs of rice cultivars, due to the time, place, and seedlings, proper use of farming and field management of various technical measures to create suitable for the cultivation of rice root growth and development surroundings.
First, perennial fields should be implemented paddy and dry rotation, open deep ditch drainage to reduce the groundwater level, increase organic fertilizer, improve soil structure, enhance soil permeability.
2. For rice areas that have already developed disease, they should be drained immediately to dry up the fields, apply black and white ash (grasswood ash: lime = 1:1.5) or phosphate fertilizer, and then cultivator. After the new root grows, suitable urea and other fast-acting fertilizers will help restore vitality and reduce the incidence. Foliage can also be used to remediate nutrients.
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