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四、棉花营养诊断的速测法(一)速测诊断的意义营养诊断的速测法,是运用化学物理分析方法,来测定棉株体内和土壤中营养物质状况,以迅速确定棉株的生长发育动向。根据测定,并与看苗诊断结合进行分析的结果,采取积极的人工管理措施,调节棉株的营养状况和生育生理进程,以期达到高产优质的目的。目前营养诊断的速测法,主要是测定各种形态的矿质营养元素含量。关于光合作用——空气营养状况的诊断工作则很少进行,需要进一步加强研究。棉株吸收营养物质是一个复杂的生理过程,它并不直接取决于土壤中营养元素的贮藏量。然而,测定棉株组织液中矿物态的
Four, cotton nutrition diagnosis of rapid test method (A) the significance of rapid diagnostic test Nutrition diagnostic rapid test method is the use of chemical and physical analysis methods to determine cotton plant in vivo and soil nutrients in order to quickly determine the growth of cotton plants Development trend. According to the results of the analysis and analysis combined with the seedling diagnosis, positive manual management measures are adopted to regulate the nutritional status and physiological processes of cotton plants in order to achieve high yield and good quality. At present, the rapid diagnosis of nutrition diagnosis, mainly to determine the various forms of mineral nutrient content. On the photosynthesis - diagnosis of air nutrition status is seldom carried out, the need to further strengthen the research. Cotton plants absorb nutrients is a complex physiological process, it does not directly depend on the storage of nutrients in the soil. However, the determination of mineral status in cotton tissue fluid