湖南地区不同木薯品种耐肥高产比较试验（英文）

Comparative Experiment on Fertilizer Tolerance and Yielding Ability of Cassava in Hunan

[目的]研究木薯新品种对肥料用量的反应,挖掘木薯高产的潜力。[方法]以木薯品种"桂热8号"、"桂热9号"、"桂热10号"以及"新选048"、"桂垦09-26"5个最新选育的喜肥木薯品种为材料,以品种的正常施肥水平作为对照,进行木薯的耐肥高产试验比较。[结果]1增施肥料能够显著增加茎叶产量。2增施肥料会降低木薯的干物率。3不同品种间的耐肥性不同,施肥量应根据品种间而有所差异。"桂热10号"与"新选048"适合高施肥水平栽培,其余3个品种桂垦09-26、桂热8号、桂热9号适合正常施肥水平栽培。[结论]该研究为木薯新品种的推广应用提供了科学依据。

[Objective] In order to explore the yield potential of cassava, the responses of new cassava varieties to fertilizer quantity was investigated. [Method] A comparative experiment was carried out on 5 new fertilizer-tolerant high-yield cassava varieties（Guire 8, Guire 9, Guire 10, Xinxuan 048 and Guiken 09-26） with the normal-level fertilization groups of these varieties as controls. [Result] The results showed that：（1） increasing fertilizers could significantly improve the stem and leaf yield of cassava;（2） increasing fertilizers could reduce the dry matter content of cassava; and（3） different varieties differed in fertilizer tolerance, and the fertilizing amount should be determined according to specific varieties. [Conclusion] Guire 10 and Xinxuan 048 are suitable for being cultivated at a high fertilizer level, and the remaining three varieties（Guiken 09-26, Guire 8 and Guire 9） are suitable for being cultivated at a normal fertilizer level.