| abstract |
The invention discloses a foliar fertilizer formulation method for reducing rice cadmium content by using citric acid and malic acid, which comprises citric acid, malic acid, MnSO 4 , ZnSO 4 , surfactant and water, wherein the mass parts of each component are : 0.2-0.25 parts by mass of citric acid, 0.1-0.15 parts by mass of malic acid, 0.3-0.5 parts by mass of MnSO 4 , 0.1-0.15 parts by mass of ZnSO 4 , 500-1000 parts by mass of water, and 0.01-0.05 parts by mass of water part surfactant. The present invention is based on suppressing the output of cadmium ions in flag leaves during the grain filling period of rice, and spraying it within 5 days from the flowering stage of rice can effectively reduce the accumulation of cadmium in early rice and late rice varieties, regardless of the characteristics of the variety and the growing season. It has the advantages of simple operation, easy promotion, and good effect of reducing cadmium after spraying. |