Controlled-release fertilizer for flowering stage of peanuts

• Main Authors: YE XIAOYU, TAO FEIFEI, ZHAO DAN, ZHAO GUIJIN, YE HONGMEI
• Format: Patent
• Language: Chinese; English
• Published: 12.10.2016
• 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 provides a controlled-release fertilizer for the flowering stage of peanuts. The spaces between middle layer release control films and inner layer release control films is filled with fertilizer. 1-2 days are needed by the middle layer release control films to be degraded into permeable films, and the effective release control time of the middle layer release control films is 4-7 days. The middle layer release control films are prepared from, by weight, 1.6 parts of nano-silica powder, 1.2 parts of turfy soil, 2 parts of calcium carbonate powder, 1.2 parts of flatting powder wax, 5 parts of erucamide, 0.3 part of pentaerythritol stearate and 105 parts of polyethylene. 2.5-3.5 days are needed by the inner layer release control films to be degraded into permeable films, and the effective release control time of the inner layer release control films is 8-15 days. According to the controlled-release fertilizer for the flowering stage of peanuts, staged fertilizer controlled release can be achieved f