NOVELTY - Water-retaining urea fertilizer comprises 40-50 pts. wt. dairy manure, 30-40 pts. wt. straw, 20-25 pts. wt. peanut shell, 60-70 pts. wt. urea, 8-14 pts. wt. acrylic acid, 11-16 pts. wt. ammonium dihydrogen phosphate, 0.8-1.2 pts. wt. potassium sulfate, 0.9-1.1 pts. wt. sodium selenite, 0.5-0.8 pt. wt. N,N'-methylene bisacrylamide, 10-15 pts. wt. soil conditioner, 1-2 pts. wt. effective microorganism, and water.    USE - Water-retaining urea fertilizer.    ADVANTAGE - The fertilizer has excellent biological and chemical stability. It greatly reduces cost.    DETAILED DESCRIPTION - Water-retaining urea fertilizer comprises 40-50 pts. wt. dairy manure, 30-40 pts. wt. straw, 20-25 pts. wt. peanut shell, 60-70 pts. wt. urea, 8-14 pts. wt. acrylic acid, 11-16 pts. wt. ammonium dihydrogen phosphate, 0.8-1.2 pts. wt. potassium sulfate, 0.9-1.1 pts. wt. sodium selenite, 0.5-0.8 pt. wt. N,N'-methylene bisacrylamide, 10-15 pts. wt. soil conditioner, 1-2 pts. wt. effective microorganism, and water. Soil conditioner comprises 110-120 pts. wt. bentonite, 3-4 pts. wt. alcohol ester, 3-4 pts. wt. nano jade powder, 9-12 pts. wt. oil, 2-3 pts. wt. ascorbic acid, 2-3 pts. wt. xanthan gum, 2-3 pts. wt. epoxy oil butyl ester, 4-5 pts. wt. sodium selenite, 8-9 pts. wt. zinc sulfate, 6-7 pts. wt. magnesium sulfate, 5-6 pts. wt. cuttlefish bone powder, and water. The soil conditioner is prepared by crushing radix stemonae into powder, mixing bentonite, alcohol ester, nano jade powder, ascorbic acid, xanthan glue and water, heating to 70-80 degrees C, grinding for 1-2 hours, concentrating, drying, adding remaining components, mixing uniformly, and granulating. An INDEPENDENT CLAIM is included for the preparation of water-retaining urea fertilizer comprising high-speed stirring straw, peanut shell, soil conditioner, and cow dung for 30 minutes, adding urea and diammonium phosphate, stirring and heating to melt urea, cooling; adding remaining components, mixing uniformly, fermenting for 14-18 days, and drying.