Optimal selection method for promoting leaves of Nandina domestica "Hongye" to coloring by proportional fertilization

Abstract

The invention provides an optimal selection method for promoting leaves of Nandina domestica "Hongye" to coloring by proportional fertilization. Using a biennial Nandina domestica "Hongye" potted seedling as an object, through a fertilizing method with reasonable fertilizing amount, fertilizing time, and proportion of nitrogen, phosphorus, and potassium, influence of fertilization on physiology and leaf color effect of the Nandina domestica "Hongye" is researched, and finally, proportion of nitrogen, phosphorus, and potassium being beneficial for improving chlorophyll, carotenoid, and anthocyanin contents and promoting the Nandina domestica "Hongye" leaves to coloring is obtained. The method provides theoretical foundation for improving ornamental value of color-leafed plants.

Description

technical field

[0001] The invention belongs to the application field of landscaping technology, and in particular relates to an optimal method for promoting the coloration of red-leaved nandina foliage by proportioning fertilization. Background technique

[0002] With the progress of society and economic development, people have higher and higher requirements for the color of urban garden plants. Because of their unique leaf color, colorful leaf plants have attracted more and more attention in landscaping in recent years, and their applications have become more and more extensive. However, the level of fertilization has a great influence on the leaf color of color-leaved plants. Studies by Sun Mingxia and others have shown that excessive application of nitrogen fertilizer will cause excessive growth of plants, make green tissue grow rapidly, take advantage, and affect the performance of color-leaf plants. He Jun et al. found that the ratio of N, P, and K 3 elements to promo...

Images