Abstract:
Ginger(Zingiber officinale Rosc.), both edible and medicinal, the domestic and foreign market demand is large, the cultivation area is increasing year by year, but in the traditional cultivation method, there are problems such as quality decline, restricting the healthy development of ginger industry. At present, the treatment of Chinese medicine residues mainly adopts simple stacking, landfill or incineration, which is easy to cause resource waste and environmental pollution. Combining with the development of the resource utilization of Chinese medicinal residue and the need of improving the cultivation quality of ginger, Xiaohuangjiang, a local ginger variety in Shaoguan, the northern of Guangdong Province, was used as the experimental material to study the effects of Chinese medicinal residue on the physicochemical properties of the substrate and the early growth of ginger in the cultivation process of 5 different proportions of Chinese medicinal residue. The results showed that the treatment of 20%-80% Chinese herb residue could improved the temperature of the matrix, reduced the bulk density of the matrix, increased the porosity of the matrix, increased the content of some trace elements, promoted the absorption and transformation of soil mineral nutrients, promoted the early emergence of ginger, increased the emergence rate of ginger, plant height, stem diameter, tillering number and the number of ginger leaves. The results indicated that the addition of Chinese herb residue in the substrate could effectively improve the physicochemical properties of the substrate, promote the growth of ginger, and lay a foundation for the expansion of the subsequent ginger tuber and increase the yield. Among them, the treatment effect of 60%-80% of the proportion of Chinese medicine residue is the most ideal.