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桑园叶面喷施稀土微肥是我省《稀土农用技术研究与推广》课题之一。经多年试验分析,在一定条件和施用技术下,桑园叶面喷施后,叶色浓绿、叶片增大、叶肉加厚、叶质量改善,比对照(喷清水)单株产叶量提高12.5％,用此叶养蚕节省桑叶10.2％,张种产茧量增产17.5％。我县农村已连续4年大面积推广应用,技术增幅稍低于试验成绩,年亩桑净增收入90.87元,投效比为1:13.8,是一项方法简易、效益显著、蚕农欢迎的新技术,对发展蚕桑产业起到了促进作用。现将实施技术要点介绍如下: 一、适时和次数。喷施应掌握在各蚕期五龄盛
Mulberry foliar application of rare earth fertilizer is our province, “rare earth agricultural technology research and promotion” one of the topics. After years of experiment and analysis, under certain conditions and application techniques, mulberry foliar spraying, dark green leaves, leaves increased, leaf thickening, leaf quality improvement, than the control (spray water) per plant yield increased 12.5%, with this leaf sericulture save 10.2% mulberry leaves, cocoon production Zhang Zhang yield 17.5%. The rural areas in our county have been popularized and popularized for 4 years in a row. The increase in technology is slightly lower than the test results. The annual increase in net profit per mu is 90.87 yuan and the effective ratio is 1: 13.8, which is a new technique that is simple and effective and welcomes silkworm farmers , Has played a catalytic role in the development of sericulture industry. The implementation of the technical points are as follows: First, timely and frequency. Spraying should be held in each silkworm period of five Sheng