论文部分内容阅读
1986年春,设A为浇施因素有三个水平,即:浇施稀土8/万、5/万和清水;B为喷施因素,三个水平即喷施稀土5/万、2/万和清水。试验结果以浇清水、喷施稀土5/万为最佳处理区。折合亩产桑叶592.5公斤,比浇喷等量清水的对照区亩产477.5公斤增产24%。设与桑树浇、喷处理相对应的养蚕区。分区采叶饲蚕,结果上茧产量经方差分析,F值达显著差异,t测验(LSD法)以浇清水、喷硝酸稀土5/万饲蚕区折张产上茧量比对照增产1.89公斤,有显著差异。一粒缫测定,出丝率比对照区增长5.5%,其他指标如丝重等均有一致性。我国稀土资源丰富,国内外,在粮、油、棉等作物上早巳开发研究,并有较大面积的推广应用,但在蚕桑方面的应用研究尚未见到报道。本文目的在于探讨桑园浇喷稀土对提高桑叶产量和饲蚕经济效益的影响。
In the spring of 1986, suppose A was a factor of three factors, namely: Rare earth 8/10000, 5/10000 and clean water; B for spraying factors, three levels that is spraying rare earth 5 / 10,000, 2 / 10,000 and water . Test results to water, spraying rare earth 5 / Wan for the best treatment area. Yield per mu mulberry leaves 592.5 kilograms, than the same amount of water spray control area 477.5 kilograms per mu yield 24%. Set with Mulberry pouring, spray treatment corresponding sericulture area. Results of the cocoon production by analysis of variance, F value was significantly different, t test (LSD method) to water, spray nitrate rare earth 5/000 silkworm area fold yield callus than the control yield of 1.89 kg , There are significant differences. A 缫 determination, the rate of silk out of the control area increased by 5.5%, other indicators such as weight are consistent. China has rich rare earth resources. At home and abroad, it has already been researched and developed on the crops such as grain, oil and cotton, and has been popularized and applied in a large area. However, the applied research on sericulture has not been reported yet. The purpose of this paper is to investigate the effects of mulching and pouring rare earths on improving the yield of mulberry leaves and the economic benefits of feeding silkworms.