Introduction and cultivation method of high oil content jatropha curcas

Abstract

The invention discloses an introduction and cultivation method of Jatropha curcas with high oil content, which comprises the selection of cutting slips, the cutting seedling raising implemented after the disinfection for the cutting wood opening, as well as transplanting, fix planting and other steps. The invention provided a cutting seedling raising technology of Jatropha curcas planting with high survival rate. Not only the premium germchits can be effectively provided based on the needs of germchit quantity and season, but also the technical support can be provided for the framers and companies engaged in the Jatropha curcas planting. A reliable basis can also be established for the full utilization of land resources and the realization of scale planting. Meanwhile the site condition impacts to the yield formation and quality assurance of Jatropha curcas are fully considered, and the high-yielding, stable, high quality seeds with high oil content are cultivated. Through the detection to the fruits or seeds, the physicochemical property and the fatty acid composition are found to be in few discrepancies with those of the origin, and the good economic characters of the origin are basically maintained.

Description

technical field [0001] The invention relates to the field of introduction and cultivation of woody energy plants, in particular to a technique for the introduction and cultivation of Jatropha curcas with high oil content. Background technique [0002] Jatropha curcas L., a plant of the genus Jatropha in the family Euphorbiaceae, is a semi-succulent small tree or shrub. There are about 200 species in the world. They are distributed in tropical or subtropical regions. in tropical America and Africa. There are 4 species in my country, mainly distributed in Guangdong, Guangxi, Yunnan, Sichuan, Guizhou, Taiwan, Fujian, Hainan and other provinces. As a perennial woody oil tree species, the oil content of Jatropha curcas seed kernels is about 50%, the highest can reach 60%, and the oil content exceeds common herbaceous crops such as rape and soybean. It can be used as an ideal biodiesel raw material, thus becoming the world's Recognized bioenergy tree. Jatropha curcas is a multi...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the development and utilization of Jatropha curcas resources are still in the utilization stage of wild resources. In some places, although the seeds have been screened before planting Jatropha curcas, most of them are directly used for sowing without pretreatment, resulting in Poor germination, unsatisfactory emergence rate and survival rate

Some farmers or companies that use artificial seedling transplanting methods for planting lack relevant operating techniques, thus wasting a lot of land and other resources

[0004] Although Jatropha curcas has strong vitality and fast growth in dry and hot valley areas, for a long time, due to the neglect of site conditions such as micro-topography, soil, altitude and other factors, some places have blindly expanded the planting area, which is not suitable for planting. In Jatropha curcas areas, quite a lot of plants have no flower buds for a long time, no fruit, or few fruit, low oil content of seeds (less than 30%), etc.

Although some experience in seedling breeding and cultivation has been accumulated during this development process, the relevant key technical links are not yet mature, and there are few fine varieties of Jatropha curcas with high oil content. It is still in the exploratory stage, resulting in the low survival rate of the introduced varieties in some places, the expression of the economic traits of the varieties is not obvious, unstable, etc., and the land, capital and human resources are seriously wasted.