2results about How to "Nutrient balance" patented technology

The application relates to the technical field of agricultural fertilizer stirring, and discloses an agricultural fertilizer stirring device, which comprises a box body, a smashing mechanism, a distributing mechanism and a stirring mechanism; the box body is used for supporting and mounting the whole device; the smashing mechanism, the distributing mechanism and the stirring mechanism are arranged in the inside of the box body from top to bottom; the smashing mechanism adopts two smashing rollers which rotate oppositely, cooperates with a bevel gear transmission assembly, can efficiently break up caked fertilizer, and lays a foundation for subsequent stirring uniformity. The distributing mechanism is intermittently meshed through a half gear and a full gear, periodically rotates a distributing cylinder, makes the fertilizer uniformly fall according to a set amount, avoids that excessive feeding at one time leads to excessive stirring load or uneven mixing. The stirring mechanism adopts a double-stirring-roller rotating design, stirring blades are mutually matched to form convection stirring, greatly improves the fertilizer mixing uniformity, guarantees the soil nutrient balance after fertilization, and improves the practicability of the device.

The invention discloses a special organic fertilizer for preventing and controlling tobacco black shank and a preparation method thereof.The special organic fertilizer is prepared from corn straw, rice husk charcoal, a biological leavening agent, limonin, salicylic acid, plant ash, shrimp shell powder and soluble potassium silicate, and the biological leavening agent is tarlaromyces flavus powder; the preparation process comprises the following steps: acidizing the prawn shell powder, crushing and fermenting the corn straws, the rice husk charcoal and the acidized prawn shell powder, increasing the activity of the tarlaromyces flavus powder by using limonin and salicylic acid, carrying out secondary fermentation, and finally granulating and drying. The growth and development of tobacco root systems are promoted, the stress resistance of the tobacco is enhanced, and the occurrence of soil-borne diseases is reduced, so that the yield of the tobacco is increased. Meanwhile, the tobacco absorbs more comprehensive and balanced nutrients, and the internal quality of the tobacco leaves is improved.