Establishing "Wildflower Meadow" On Different Soil

Wildflower meadow is a rising herbaceous flower application form in recent decades, the landscape of wildflower meadow is naturalistic and needs low-maintenance, so it has bright prospects. The key of successful establishment of wildflower meadow is the reasonable assessment of the site environmental conditions, thus soil is one of the most important environmental aspects. But so far, in our country, study on the establishment of wildflower meadow is just a few, and the reports about the impact of soil on the establishment of wildflower meadow is more few. Therefore, the effect on the establishment of wildflower meadow of soil and the N, P lever is preliminarily studied, in order to give reference to the application and establishment of wildflower meadow in our urban cities about the information of soil. The main results are as follows:1)15species of wildflowers frow Baihuashan Nature Reserve and5species of common commercial flowers perform well in the indoor seed germination and in the experiment of pot sowing in the open field, so the15species are selected as the species for wildflower meadow combination, by using which,3different mix-sowing wildflower meadow combinations are designed. The combinations all perform well in2kinds of soil in this study, and Combination C performs best. It is seemed that using national wildflower and commercial flowers to estaolish wildflower meadow is feasible, and the mixes species of flowers also have effect on the growth conditions of mix-sowing flowers.2) The experiment of mix-sowing flowers on different soil shows:different soil has significant effect on the growth conditions of wildflower flowers. The growth conditions including germinating rate, specie richness, specie diversity, density, green phase, biomass vertical distribution structure and the quantity of weeds on soil frow road green space and soil frow park green space both perform better than that on soil frow suburban agriculture leisure land. Soil frow road green space is sandy loam of low fertility, and soil frow park green space is sandy loam of medium fertility, soil frow suburban agriculture leisure land is loam of high fertility. Therefore, it is more suitable for establishing wildflower meadow on the relatively loose soil of low and medium fertility. 3) The experiment of mix-sowing flowers on different soil N/P levels shows:different soil N/P levels both have significant effect on the growth conditions of mix-sowing combinations, and P level has greater effect. P lever shows obvious negative correlation of the performance of the combination including specie richness, specie diversity, specie evenness. The correlation of the performance of the combination and N lever is like Bell-shaped curve. Specie diversity, Specie evenness and density all rises first then goes down. Therefore, during the assessment of the site for establishment of wildflower meadow, N/P content can be used as an important referred index. When N and P levels are too high, obviously the soil is not suitable for the establishment of wildflower meadow.