How to prevent and cure albinism of rice seedlings?

How to prevent and cure albinism of rice seedlings? Please introduce the prevention and control methods of rice albinism starting from the three-leaf stage, the leaf tip turns white at the beginning, then spreads downward along the main vein, extends to the leaf base, develops from the midvein to the leaf margin on both sides, and finally the whole leaf is white, and some leaves are white stripped. the leaf margin remains green, the leaf sheath fades, turns purple, and then turns yellowish brown, some seedlings develop rapidly, and several green leaves become white seedlings at the same time. After that, the new leaves and tiller leaves are also white, the disease develops slowly, generally 6-7 leaves turn green gradually, and the seriously ill 4-5 leaves die. Rice albinism can be controlled with reference to the following methods: 1. No or less chemical fertilizer (especially urea) is used as the base fertilizer in the seedling field. Topdressing should be carried out at the three-leaf stage and spread in stages. 2. Sow seeds on sunny days as far as possible. 3. Trace element fertilizers such as zinc sulfate or ferrous sulfate can be applied in diseased fields, 1-2 kg zinc sulfate per mu and 1 kg ferrous sulfate per mu. Click to get more rice planting techniques click to get more food crop planting techniques