NOVELTY - A sulfur and resin double-membrane humic acid based slow controlled release fertilizer for cultivating potato with shed comprises: 80-120 parts resin coated urea, 100-150 parts sulfur coated urea, 70-125 parts diammonium phosphate, 100-160 parts potassium sulfate, 400-560 parts humic acid slow release compound fertilizer and 50-70 parts boron-magnesia fertilizer.    USE - As sulfur and resin double-membrane humic acid based slow controlled release fertilizer for cultivating potato with shed (claimed).    ADVANTAGE - The sulfur and resin double-membrane humic acid based slow controlled release fertilizer provides good fertilization and adsorption effect; is quick-acting fertilizer formulation; meets the requirement of greenhouse cultivation conditions; increases economic income; enhances photosynthesis of potato; improves the yield and quality of the potato; increases stratum corneum; enhances toughness of the potato; improves the resistance to potato early blight, late blight, wilt, yellow and mole cricket and mite; reduces the dosage of farm chemical and reduces the production cost; balances absorption of trace element and promotes carbohydrate synthesis and operation of the function, which is good for promoting the continuous expansion and starch content of the potato tuber; increases the hardness of the potato cellular; reduces the potato tuber disease and mechanical damage; and is good for carrying out fertile engineering and agriculture sustainable development.    DETAILED DESCRIPTION - A sulfur and resin double-membrane humic acid based slow controlled release fertilizer for cultivating potato with shed comprises: 80-120 parts resin coated urea, 100-150 parts sulfur coated urea, 70-125 parts diammonium phosphate, 100-160 parts diammonium phosphate, 400-560 parts humic acid slow release compound fertilizer and 50-70 parts boron-magnesia fertilizer. The boron-magnesia fertilizer is commercially available boron-magnesia fertilizer, where the magnesium content is 10-15%, and born content is not less than 1%. The mass percentage contents of nitrogen, phosphorus pentoxide and potassium oxide in the humic acid based slow release compound fertilizer are 16-18%, 7-10% and 18-22% respectively, and the content of humic acid is not less than 10%.