The invention relates to the field of composite fertilizers and specifically relates to an active controlled-release composite
fertilizer containing
wine cellar mud. The
fertilizer is prepared from the following materials in parts by weight: 10-15 parts of 1250-2000-mesh diatomite, 12-14 parts of
feces of
livestock and poultry, 8-10 parts of
bryophyte, 6-8 parts of
plant ashes, 2-3 parts of bamboo vinegar, 5-8 parts of waste
coffee grounds, 3-5 parts of
zinc carbonate, 10-12 parts of
calcium hydrophosphate, 7-8 parts of
saw dust, 10-12 parts of
fish pond sludge, 2-4 parts of
active carbon, 5-8 parts of tea stems, 8-10 parts of
wine cellar mud, 2-4 parts of angled bittersweet stems, 4-6 parts of
calcium superphosphate, 1-3 parts of
lemon peel, 0.1-0.2 part of nano
zinc sulfide, 6-8 parts of
carboxymethyl chitosan, 1-3 parts of
epoxy soybean oil, 4-5 parts of
glycerol, 12-15 parts of
polyvinyl alcohol, 1-2 parts of lauryl
sodium sulfate and 4-5 parts of auxiliaries. The composite
fertilizer disclosed by the invention is wide in formula source, contains various materials which are cheap, easily available, and rich in active
biomass, can effectively improve soil environment, can promote
crop growth, utilizes diatomite and a controlled-release film-
coating agent to form dual
coating for nutrients, is more lasting in fertilizer effect, and obviously improves
crop yield and quality.