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洞庭湖区湖垸农业与退田还湖区替代农业模式研究 总被引:3,自引:0,他引:3
彭佩钦 《中国生态农业学报》2005,13(4):204-206
简析了洞庭湖区湖垸农业形成与洪涝灾害状况,并提出退田还湖湖垸实行避灾种植制度,建立高效替代农业发展模式的对策。 相似文献
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The study was designed to determine the mode of interaction between maize ( Zea mays L.) and soybean ( Glycine max Merr.) in association with purple nutsedge. This was investigated under glasshouse conditions using the replacement (substitutive) series design. Maize and soybean competed with purple nutsedge for growth resources, and purple nutsedge significantly retarded the growth and development of maize and soybean. Maize was more susceptible to purple nutsedge interference compared with soybean. 相似文献
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松毛虫寄蝇研究Ⅱ:寄生蝇替代寄主筛选和人工繁殖初探 总被引:3,自引:0,他引:3
本研究成功地筛选了家蚕作为松毛虫狭颊寄蝇Carcelia matsukarehae的替代寄主。松毛虫狭颊寄蝇能产卵寄生于家蚕,并完成其生活史,子代生活力、繁殖力较强,1头家蚕幼虫可以繁殖1到2头蝇,同时,狭颊寄蝇偏好寄生于寄主的高龄幼虫。五龄眠起1-2天的家蚕,置于8-15℃低温中冷藏仍能存活,可供随时繁殖寄蝇的需要;家蚕饲养简便,花费少,而繁殖量又大,是一种较理想的替代寄主。 相似文献
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