摘要
1982年以来,对寒冷纱和塑料薄膜双重拱式覆盖旱育秧技术进行了研究。试验表明,胶纱寒冷纱适于水稻早育秧,适用的网目范围为10~#—12~#。在该范围内,网纱的透光率为85—88%,减风率为14—23%,且喷洒作业质量优良。对这种育秧技术在吉林和黑龙江两省进行了中间试验和田间试验。结果表明,这一方法具有良好的保温,透光和防风效果。育秧方法即简便又安安实用,明显地减轻了立枯病初青枯病的发病率,育出的秧苗整齐而健壮。因此,这一技术适用于寒冷地区各种水稻旱育秧,特别是中、小苗育秧。
Since 1982,the technique of using cold screen and polyethylenemembrane as double arch covers for breeding rice seedlings on theupland nursery has been Studied.The results showed that the coldscreen was suitable ofr breeding rice seedlings on the upland ricenursery.The range of the network necessary was between 10 and12.The light transmission ratio and the wind reducing rate ofthe network in above range are 85—88% and 14—23% respectively.The quality of spray for controlling weed and diseases was satis-factory.The results of the field and middle experiments carriedout in Jilin and Heilongjiang provinces proved that the techniquewas characterized by fine warmth keeping,light transmission andwind-proof efficiencies.The method was not only Simple but alsoSafe and applicable.It increased the seedling,s resistance to dam-ping-off and withered shoot of rice plant,and provided uniformand healthy seedling for transplant.The technique is most suitable for breeding seedlings on uplandNursery in coid area,especilly for breeding seedling of middle andsmall shoot.
出处
《东北农业科学》
1986年第3期42-48,共7页
Journal of Northeast Agricultural Sciences
