摘要
经过大量的田间试验及生产应用检验,西瓜施用稀土不仅有明显的增产效应,而且能改善瓜的品质。据4年28个试验点统计表明,稀土可提高西瓜的单瓜重和单株结瓜数,平均增产17.59％。并可提高含糖量,且无稀土累积。稀土的增产机理是提高了叶片的叶绿素含量,增强了光合作用能力和根系活力,从而促进了养分吸收与运转,为增产打下了物质基础。
The result of field experiments of rare-earth elements application in watermelon showed that yield was increased by 17.59% because of gain in weight per melon and number of melons per plant. The result of determination showed that applying rareearth elements would raise chlorophyll content in leaf, heighten capacity of photosynthesis, enhance root vigour and improve absorption and transport of nutrient elements. For this reason, the plants grow vigorously. Besides, applying rare-earth elements would also improve fruit quality of watermelon and increase sugar content without accumulation of rare-earth elements in fruits.
出处
《上海农业学报》
CSCD
1992年第1期47-53,共7页
Acta Agriculturae Shanghai
关键词
西瓜
稀土营养液
稀土
施肥
生理
Rare-earth elements application in agriculture, Watermelon, Rare-earth elements nutrient solution
