The optimum soil moisture content index about tomato seedling bed irrigation was conducted out in early spring.
对番茄早春育苗的苗床灌溉最佳土壤含水量上限数值进行了试验研究。
The study on various form of seedling bed and seedling shed was carried out in Jilin province newly developed tobacco areas.
本文针对吉林省新烟区的环境特点，对不同形式的苗棚苗床对烟苗的影响进行了研究。
During the tobacco hardening period bed of tobacco seedling was the falling target of alate aphids and was the main resource of tobacco virus spread by aphids.
炼苗期烟草苗床是传毒介体有翅蚜着落的靶子中心，是烟田蚜传病毒病的主要初侵染源，为防治烟草蚜传病毒病的关键时期。
应用推荐