施肥对园林绿化灌木景观的影响研究

试验选择信阳市城区10种灌木,采取1～3年施肥1次和每年施2～4次肥等频次,观察施肥效果.结果表明：施肥对灌木枝叶生长量、枯死枝叶量和景观效果的影响显著.每年施肥3次,灌木枝叶生长量可以达到最大值,每年施肥2次,灌木可以达到最佳景观效果.对于观花灌木,在花后增施1次肥,能够保证第2年大量开花.

Study on Effect of Fertilization for Landscaping Shrub and Landscape

In this test ten kinds of shrubs was selected in Xinyang City, and fertilization once first to third year or two to four times every year was done, and the effect of fertilization in different frequency was observed. The results showed that fertilization had a significant effect on growth of branches and leaves, withered leaves and landscape effect of shrubs; Under the measure of fertilization three times per year, shrub branches and leaves growth could achieve the maximum; Under the measure of fertilization two times every year, shrubs could achieve the best effect of landscape; For flowering shrubs, fertilization once more after flowering could guarantee a large number of blossom in the second year.