How to deal with zinc deficiency in rice? Come and have a look!

Due to the lack of zinc in the soil of rice fields, rice seedlings may appear to be hardened to varying degrees. Rice seedling stiffness caused by zinc deficiency often occurs within 2-3 weeks after transplanting. So, what about zinc deficiency in rice?

Causes of zinc deficiency in rice

1. Zinc absorption barrier. In paddy and dry rotation soil, a large amount of phosphorus fertilizer is applied, and the phosphorus zinc ratio in the soil solution is too large, which hinders the absorption and utilization of zinc by the root system. Large amounts of nitrogen fertilizer and excessive fertilization in acidic soils can hinder the absorption of zinc fertilizer, leading to zinc deficiency.

2. In cold water fields with poor drainage and muddy fields with poor aeration, rice roots develop poorly and have a reduced ability to absorb zinc, which can lead to zinc deficiency.

Prevention and control methods of zinc deficiency in rice

1. Leaf spray. 0.1~0.2% zinc fertilizer can be sprayed at the 3-leaf stage of seedlings, 3-5 days before transplanting, and 5-7 days after transplanting in the field, with leaves sprayed 2-3 times at intervals of 4-6 days.

2. For zinc deficient soils, zinc sulfate of 1 to 1.5 kg/mu or zinc containing compound fertilizers can be applied.

3. Scientific fertilization. Reasonable fertilization, control the balance of phosphorus and zinc nutrients, and improve the absorption of phosphorus and zinc by rice.

4. Reasonably control the water level in the field, strengthen the management of the water layer in the paddy field, and avoid long-term flooding of the paddy field.