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应用增甘膦提高甜菜块根含糖率,是增加产糖量的重要手段之一。增甘膦是国外七十年代发展起来的植物生长调节剂,其化学名称为:N·N—双亚甲基亚膦酸—甘氨酸,分子式为 C_4H_(11)No_8P_2,纯品呈白色固体,易溶于水。据国外报导,增甘膦具有促进甜菜根部生长和增加蔗糖含量的作用。施用增甘膦,能同时导致糖类(包括淀粉)较早的积累和含量的明显增加。此外还发现,在蔗糖含量增加的同时,还会使还原糖和非糖物质减少。施用量为0.1—4磅*公顷,一般施用0.25—1.5磅。例如,用0.5磅有效成分/公顷喷洒甜菜,喷后30天收获,其结果块根增产9.4%,产糖量增加10.7%。还有资料报导,在高氮栽培条件下,施用本品对提高含糖量也有明显效果。
The application of glyphosate to improve the sugar content of sugar beet root is one of the important means to increase the yield of sugar. Glyphosate is a plant growth regulator developed abroad in the seventies, its chemical name is: N · N-bis (methylene phosphonic acid) glycine, molecular formula C_4H_ (11) No_8P_2, pure white solid, easy Dissolved in water. According to foreign reports, the increase of glyphosate beet root growth and increase the role of sucrose content. The addition of glyphosate also led to an earlier accumulation of sugars, including starch, and a significant increase in their content. In addition, it was found that while sucrose content increased, reducing reducing sugars and non-sugar substances also decreased. The application rate is 0.1-4 lbs * ha, with a typical application of 0.25-1.5 lbs. For example, sugar beet was sprayed at 0.5 lb a.i./ha and harvested 30 days after spray. As a result, root tuber yield increased 9.4% and sugar yield increased 10.7%. There are also data reported that in high nitrogen cultivation conditions, the FDA to improve the sugar content also have significant results.