Compound fertilizer special for bulb flowers and application of compound fertilizer

Abstract

The invention relates to the technical field of biological carbon fertilizers, in particular to a biological-carbon-based compound fertilizer which can prolong the nitrogen fertilizer efficacy period, reduce phosphatic fertilizer leaching loss, increase the utilization rates of nitrogen and phosphorus and sufficiently meet the requirements of growth of bulb flowers, and has the functions of resisting drought, preserving soil moisture and improving soil, and application of the compound fertilizer. The compound fertilizer is prepared from 10-30% of biological carbon (dry basis), 45-60% of chemical fertilizer, 10-20% of medical stone and 10-15% of clay. The chemical fertilizer is preferentially prepared from 10-20% of urea, 25-40% of monopotassium phosphate and 10-20% of potassium sulphate. The raw materials are stirred and dried according to the proportion, sent into a granulation system to be granulated and dried (smaller than 10%), and then the compound fertilizer can be obtained. The biological-carbon-based compound fertilizer is simple and feasible in production process, small in investment, rapid in effect, high in agriculture yield, low in cost, suitable for being applied as base fertilizer for bulb flowers and capable of being widely applied to various types of soil in arid and semi-arid areas, and has wide market aspects and good social and economic benefits.

Description

technical field

[0001] The invention belongs to the technical field of fertilizers, in particular to a special compound fertilizer for bulbous flowers and a preparation method thereof. Background technique

[0002] Due to factors such as volatilization, leaching and soil fixation, the utilization rate of nitrogen fertilizer in traditional chemical fertilizers has been low. The seasonal utilization rate of nitrogen fertilizer is only 30% to 40%, and the seasonal utilization rate of phosphorus fertilizer is only about 10% to 20%. The elements are lower, and it is difficult to fully exert its effect when applied in the current season. The low utilization rate of fertilizers not only leads to poor yield and quality improvement of crops, but also reduces economic benefits, and may also cause a series of ecological and environmental problems. Through industrial means, the production of biochar compound fertilizer characterized by high utilization rate and high environmental safet...