Functional nitrogen and potassium double-control fertilizer special for garlic crops and preparation method thereof

• Main Authors: LIU TONGXIN, CHEN SHIGENG, YU XIAODONG, DING FANGJUN, GUO XINSONG, LI QIAOYU, MA XUEWEN, LI CHAO, ZHU FUJUN, FAN ZHONGQING, XU HAICHENG, SANG WEIMIN, SONG ZHI
• Format: Patent
• Language: Chinese; English
• Published: 27.10.2020
• Subjects: CHEMISTRY; FERTILISERS; FERTILISERS CHARACTERISED BY THEIR FORM; MANUFACTURE THEREOF; METALLURGY; MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS

The invention discloses a functional nitrogen and potassium double-control fertilizer special for garlic crops. The fertilizer comprises the following raw materials by weight: 560-600 parts of masterbatch particles, 100-120 parts of resin coated urea with a controlled release period of 2 months, 100-120 parts of resin coated urea with a controlled release period of 4 months and 200-240 parts of resin coated potassium chloride. The master batch particles are prepared from the following raw materials by weight: 100-120 parts of activated humic acid, 100-150 parts of urea, 260-300 parts of monoammonium phosphate, 280-330 parts of potassium sulfate, 80-150 parts of ammonium sulfate, 10-15 parts of zinc sulfate heptahydrate, 15-20 parts of borax and 10-30 parts of gamma-polyglutamic acid. Under the condition of ensuring sufficient nutrition supply, the use amount of the fertilizer is reduced, the damage of the fertilizer to the soil ecological environment is reduced, and meanwhile, the fertilizer has the effects o