Straw biomass charcoal for soil conditioner modified by adding 3-indolebutyric acid and preparation method thereof

Abstract

The invention discloses a straw biomass charcoal for soil conditioner modified by adding 3-indolebutyric acid. The straw biomass charcoal is prepared from, by weight, 83-85 parts of wheat straw, 14-16 parts of folium artemisiae argyi, 3.6-3.8 parts of calcium chloride, 1.1-1.5 parts of potassium chloride, 1.5-1.8 parts of citric acid, 2-4 parts of powdery silicon fertilizer, 0.2-0.5 part of gamma-amino butyric acid, 4-6 parts of brown algal powder,1-3 parts of tea meal, 0.03-0.05 part of strychnine, 0.6-0.9 part of 3-indolebutyric acid, 6-7 parts of bentonite, a proper amount of 10% sodium hydroxide solution by weight, a proper amount of mixed acid liquid and a proper amount of deionized water. The straw biomass charcoal prepared by soaking the wheat straw and the folium artemisiae argyi with the mixed activator obtained by compounding the sodium hydroxide solution, the calcium chloride and potassium chloride, conducting high-temperature carbonization and pickling treatment on the mixture and then compounding 3-indolinic acid, the tea meal and other components has the effects of rooting and killing insects, the comprehensive utilization rate of crop straw is improved, and the yield and quality of agricultural products are also improved.

Description

technical field [0001] The invention relates to the technical field of biochar preparation, in particular to a straw biochar for a soil conditioner modified by adding 3-indole butyric acid and a preparation method thereof. Background technique [0002] Crop straw is a valuable renewable resource, but due to the influence of consumption concepts, lifestyles and agricultural production time for a long time, crop straw resources are completely in a state of high consumption, high pollution, and low output. Some of the crop straws are discarded or burned, and have not been rationally developed and utilized, which not only causes serious waste of resources, but also causes serious environmental pollution, causing serious harm to human health and safety, and has become a major social problem. For this reason, the relevant state departments have done a lot of work and adopted management measures to ban straw burning, but the symptoms are not cured. Therefore, the comprehensive util...

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Problems solved by technology

[0004] However, the modification methods in the literature are relatively single, and the function is also single. The prepared biochar only has a good adsorption effect on the unused phosphorus in the soil. However, with the rapid development of modern industrialization, a large amount of industrial wastewater is discharged blindly. Into the farmland, and excessive use of large doses of chemical fertilizers, a large number of enrichment of heavy metal ions in the soil affects the growth of crops, and also indirectly affects human health. The effect is poor, and the effect of rooting, water and fertilizer conservation as a soil improver is also poor, so the existing process needs to be improved