薏苡通常划为旱地作物,生产上亦以旱地栽培。经研究发现薏苡的根、茎、叶和叶鞘都有明显而丰富的通气组织。通过以淹水为主的水分试验证明,在长期淹水生态条件下,可以莸得大幅度地增产,而在生育期内不同时期以干旱处理,对生物学产量和经济产量均有显著的不利效应。据此,我们认为薏苡不是旱田作物而是沼泽性作物,从生态学而言它不是中生性植物而是湿生性植物。其栽培方法应跳出旱地栽培范畴,而采用湿生栽培法。 Job’s tears are usually classified as dry land crops and are also cultivated on dry land. The study found that the root, stem, leaf and leaf sheath Coix have obvious and rich ventilation. Waterlogging tests show that under long-term flooding ecological conditions, yield can be increased significantly, while in different periods during the growth period, drought treatment has significant adverse effects on both biological yield and economic yield effect. Accordingly, we think Coix is ​​not a dry crop but a swampy crop, ecologically it is not a mesophyte but a wet plant. The cultivation method should jump out of dryland cultivation areas, and the use of wet cultivation methods.