| 苎麻养分吸收动态及施肥效果的研究 |
| |
| 引用本文： | 王朝云,严文淦.苎麻养分吸收动态及施肥效果的研究[J].中国农业科学,1994,27(2):62-71. |
| |
| 作者姓名： | 王朝云 严文淦 |
| |
| 作者单位： | 中国农业科学院麻类研究所，湖南沅江 413100 |
| |
| 摘 要： | 本研究表明，除二麻中期受干旱影响外，头、三麻均以封行至黑脚期的干物质和氮、磷、钾积累强度最大。总积累量均为头麻 > 三麻 > 二麻 ，丰产麻 > 一般麻。吸收的氮、钾多于磷。经济系数为丰产麻 < 一般麻。在二麻中期干旱和三麻后期短日照诱导生殖生长的情况下，植株不同部位养分发生不同的转移现象。各季麻生长前期养分浓度均高于后期，最终为叶中氮、磷浓度最高，皮中钾浓度最高。施用氮、磷、钾化肥均可促进干物质积累和本身养分的吸收。氮、钾配合还有相互促进吸收的作用。不同肥料用量对植株养分浓度和吸收的氮、磷、钾比例有一定影响。各种肥料均有增产作用，以氮、钾更明显，钾肥还有利于纤维细度的提高。
|
| 关 键 词： | 苎麻营养 施肥效果 |
STUDIES ON THE TRENDS OF NUTRIENT UPTAKE AND EFFECT OF FERTILIZER APPLICATION ON RAMIE |
| |
| Wang Chaoyun,Yan Wengan,Jie Yucheng.STUDIES ON THE TRENDS OF NUTRIENT UPTAKE AND EFFECT OF FERTILIZER APPLICATION ON RAMIE[J].Scientia Agricultura Sinica,1994,27(2):62-71. |
| |
| Authors: | Wang Chaoyun Yan Wengan Jie Yucheng |
| |
| Abstract: | The results of this study showed that the maximum accumulation rates of N,P,K,in ramie plant were from the stage of crop closing to the stage of brown basal stem in the 1st crop and the 3rd crop except for that in the 2nd crop which was suffered from the drought.Amount of dry matter and N,P,K in plant was the 1st crop>the 3rd crop>the 2nd crop,the high-yield crop>the common crop.N,K uptaken by plant was more than P.Economic coefficient of the high-yield ramie plant was less than that of the common.Under the condition of drought in the middle of the 2nd crop and the reproductive growth ieduced by shortday at the late stage of the 3rd crop, the nutrients among the parts of plant were transferred in different ways.Concentration of nutrient at early stage of growth was higher than that of late stage of growth in three crope.However,in the harvest time,the concentrations of N,P was the highest in leaves and K was the highest in the bark.Applying N,P,K fertilizer could increase the accumulation of dry matter and the absorption of nutrient respectively.Especially mixing N fertilizer with K could help each other to be absorbed.The dosage of different fertilizers applied influenced the concentration of nutrients and the proportion of N,P,K absorbed in plant.Accumulating more dry matter and nutrient in plant was needed for improving fiber yield. However,N,K appeared to be more remarkable than P for improving fiber yield and K also appeared to be good for fiber fineness. |
| |
| Keywords: | Ramie nutrition Effect of applying fertilizer |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《中国农业科学》浏览原始摘要信息 |
| 点击此处可从《中国农业科学》下载免费的PDF全文 |
|
