Biological fertilizer for controlling tobacco black shank and preparation method thereof

• Main Authors: LIAO MIN, ZHONG SHANLIANG, LIU DIANSAN, WANG YI, NIU HUIWEI, GUO HONGGUANG, GUAN ENNA, HUANG XICHUN, CHENG LI, LIAO ZHONGHUI, LIU RUNSHENG, XU MINGMIN, CHEN JIAN, YANG XINSHI, PENG YAODONG, YANG QINGGEN, HE ZHIMOU, XU XINCHAO, LIU XINGHUA, QIU RONGJUN
• Format: Patent
• Language: Chinese; English
• Published: 16.08.2019
• 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 relates to the technical field of agriculture, and discloses a biological fertilizer for controlling tobacco black shank and a preparation method thereof. The biological fertilizer comprises following components in parts by weight: 26 to 30 parts of rape seed cakes, 18 to 22 parts of a nitrogen fertilizer, 13 to 20 parts of a phosphate fertilizer, 16 to 22 parts of a potassium fertilizer, 2 to 3 parts of humic acid, 2 to 3 parts of amino acids, 3 to 9 parts of oyster shell powder, 0.5 to 2.5 parts of medium trace elements, 0.5 to 2 parts of chitosan, and 1 to 3 parts of a composite biological inoculant. Fermented rape seed cakes are mixed with a nitrogen fertilizer, a phosphate fertilizer, a potassium fertilizer, humic acid, amino acids, oyster shell powder, medium trace elements, chitosan, and a composite biological inoculant, and then the mixture is grinded and blended to prepare the biological fertilizer. The biological fertilizer has comprehensive nutrients, can supply enough nutrients for t