不同环境栽培空心菜、薄荷的生长量及养分吸收量比较分析

为探讨空心菜和薄荷在不同种植环境下的作物生长量和养分吸收量,选择入星云湖河水及其附近农田为种植载体,开展空心菜、薄荷的漂浮水栽与土栽的比较试验.结果表明,空心菜水栽的植株高度、分枝数及茎叶产量分别为41.3 cm、6.2个及4.17 kg·m-2,比土栽的提高45.9％、37.8％及59.8％;水栽空心菜的茎叶全N含量...

Comparative analysis of growth and nutrient uptake of water spinach and mint cultivated in different environments

In order to investigate the crop growth and nutrient uptake of water spinach and mint in different planting environments,the water of Xingyun Lake and nearby farmland was selected as the planting carrier,and a comparison experiment of floating hydroponic and soil cultivation of convolvulus and mint.The results showed that the plant height,number of branches and yield of stem and leaf were 41.3 cm,6.2 and 4.17 kg·m^-2 of water spinach respectively,which were 45.9%,37.8%and 59.8%higher than that of soil cultivation;the stems and leaves of water spinach are all The N content is 3.25%,the total P content is 0.45%,and the total K content is 4.21%,which are 14.0%,32.4%,and 19.6%higher than that of soil planting,and the increase has reached a significant level.The plant height,number of branches,and stem and leaf yield of water-planted peppermint are 27.5 cm,8.0 and 1.68 kg·m^-2,respectively,which are 23.3%,23.1%and 24.3%higher than that of soil culture;the stems and leaves of water-planted peppermint are all The N content reached 3.18%,the total P content was 0.36%,and the total K content was 3.75%,which were 15.6%,16.1%,and 24.2%higher than those grown in soil,and the increase reached a significant level.Therefore,in the protection and government of lakes,the large ditch or buffer pond can be used to plant float water spinach and mint to achieve the balanced development of ecological and economic benefits.