春伐桑园氮磷钾肥比例对种茧育桑叶质量的影响  

The Influence of NPK Ratio Fertilized in Spring Pruned Mulberry Fields on the Quality of Mulberry Leaves for Producing Silkworm Eggs

作　　者：王泽林[1] 宋有权[1] 陈继久[2] 

机构地区：[1]四川省南充蚕种场,四川南充637000 [2]四川省蚕丝学校,四川南充637000

出　　处：《蚕桑通报》2012年第3期16-17,共2页Bulletin of Sericulture

摘　　要：试验在其它桑园管理措施一致的前提下,改变N、P2O5、K2O肥的施肥比例,并对桑叶质量进行了调查。结果是N:P2O5:K2O=10:5:5的施肥比例,可适当提高4龄起蚕结茧率、虫蛹统一生命率及全茧量、茧层量、茧层率,显著提高产卵量、良卵率和实用孵化率。综合考虑桑叶的产质量,生产中可推荐采用本施肥比例,种茧育桑园尤为如此,以提高蚕种质量。The ratio of N,P2O5,K2O fertilizers was changed when other measures for the mulberry fields were unchanged,and the quality of mulberry leaves was investigated.The results showed that when the the ratio of N,P2O5,K2O fertilizers was 10：5：5,the cocooning rate of silkworm after 4-stage,larva-pupa rate,whole cocoon weight,cocoon shell weight and percentage of cocoon shell weight were promoted a little bit,and the number of eggs laid,the percentage of normally eggs and hatchability for practical use were promoted obviously.Considering for the quantity and quality of mulberry leaves,the ratio of N,P2O5,K2O fertilizers would be used in mulberry fields,especially in the mulberry fields for parent silkworms rearing.

关 键 词：桑树栽培 配方施肥 桑叶质量 种茧育 

分 类 号：S888[农业科学—特种经济动物饲养]