increasing shallow early rice productivity
increasing soil acidity
increasing soil moisture content
increasing soil permeability
increasing specific surface area
increasing sucrose content
increasing the solubility of zinc compounds
increasing the total area of cultivated land
increasing the total yield
increasing soil acidity
increasing soil moisture content
increasing soil permeability
increasing specific surface area
increasing sucrose content
increasing the solubility of zinc compounds
increasing the total area of cultivated land
increasing the total yield
increasing specific surface area