1. The pressure index of cultivated land is the ratio of per capita minimal area of cultivated land and per capita actual area of cultivated land. 耕地压力指数是指最小人均耕地面积与实际人均耕地面积之比。
2. Through analysis of total area of cultivated lands, change in internal structure and regional difference, we discussed the driving mechanism of cultivated land change in the Tsinghai Lake region. 通过对青海湖地区耕地总面积、内部结构的变化过程和区域差异的分析，探讨了耕地变化的驱动机制。
3. Methods: The seeds of 13 cultivated populations of diploid Isatis indigotica Fort. collected from the whole country were cultivated in Chong Ming Island, Shanghai. 方法：在全国各地采集菘蓝13个二倍体栽培居群的种子，异地栽培于上海市崇明岛同一块试验田。
4. A broad-spectrum, quick-acting, non-selective contact herbicide widely used to control weeds in cultivated and non-cultivated land. 百草枯是一种吡啶类广谱速效非选择性触杀型除草剂，广泛用于耕地和非耕地杂草防治。
5. 11 species and hybrid species (three endemic) native, naturalized, or extensively cultivated in China, plus five hybrid species cultivated to a limited extent. 中国有原产的，引进的，或广泛栽培的共11种或杂种（3特有种），以及在有限地区栽培5杂种。
网络释义
celery seed oil oil of celery seed 芹菜子油;
celery seed oil oil of celery seed 芹菜子油;
celery seed oil oil of celery seed 芹菜子油;
Study on Kalgan Mushroom Cultivated in Non-original Field Comparing with Common Cultivated Mashroom 褐口蘑异地栽培与双孢菇栽培产量对比研究;
