摘要
通过试验研究了塑料大棚双重膜覆盖秋栽条件下增施钾肥对马铃薯产量、品质及相关生理性状的影响。试验表明,在当地习惯施肥基础上增施钾肥,提高了马铃薯产量、块茎干物质量、淀粉含量和商品率,同时提高了块茎膨大后期的净同化率、叶绿素含量和叶面积系数,钾肥对马铃薯产量、品质及净同化率等生理指标的贡献作用显著。增施钾肥量的不同处理,增产提质效果不同,生产中应根据实际进行选择。
Experimental study investigates the effects of potato＇s yield, quality and related physiological traits by increasing potash fertilizer in autumn planting condition within the plastic covered greenhouses with double membrane. The investigation showed that by increasing potash fertilizer on the basis of local customs, the potato yield, tuber dry matter the amount of starch content and the commodity rate are increased, while the expansion of the late tuber net assimilation rate, chlorophyll content and leaf area index are upgraded, potash fertilizer on potato production, quality and net assimilation rate and other physiological indicators is of a significant contribution to the role. Different selections of the amount of potash fertilizer lead to the different effects on potato quality and production, thus it should be selected according to the actual condition.
出处
《安徽农学通报》
2009年第7期94-95,104,共3页
Anhui Agricultural Science Bulletin
关键词
马铃薯
钾肥
产量
大棚秋栽
Potato
potash fertilizer
yield
autumn planting in greenhouse
