论文部分内容阅读
用生物降解地膜为材料,以辣椒作参试作物进行试验,结果表明:(1)该生物降解地膜的诱导期为半个月,约一个半月失去增温作用,二个月左右基本降解。(2)该膜能增加土壤温度和土壤含水量,与露地相比,各土层温度可增加20~35℃,但地表温度的增加不如普通地膜。前期的土壤含水量比普通地膜高,后期则较低。(3)辣椒产量比露地栽培提高显著,与普通地膜相比差异不大。
Using biodegradable plastic film as material and pepper as tested crop, the results showed that: (1) The induction period of biodegradable plastic film was half a month, about one and a half months lost the warming effect, and basically degraded in about two months. (2) The film can increase soil temperature and soil moisture content, compared with the open field, the temperature of each soil layer can increase 2 0 ~ 3 5 ℃, but the increase of surface temperature is not as good as ordinary film. Pre-soil moisture than ordinary plastic film, the latter is lower. (3) The yield of pepper increased significantly compared with the open field cultivation, but little difference compared with the ordinary film.