Wang Zhongren is a of this village retired teacher, sericiculture already had 10 old, when local average farmer learns indoor sericiculture, he did big canopy sericiculture however.

• 江苏省丰县凤城镇闫庄村,地处高亢,气候适宜,四季分明,桑产丰富,是大棚养蚕较理想的地方。王忠仁是该村的一位退休教师,养蚕已有10多年,当地一般农民学会室内养蚕时,他却搞起了大棚养蚕。近年随着养殖结构的调整,政策的优惠,极大地调动起农民养蚕的积极性,有着传统养蚕经验的王忠仁退休后不断引进高科技,搞起了规模性大棚养蚕。