cured tobacco biotic potassium , agronomic characters econom

  本文关键词：生物钾肥对烤烟K326生长发育的影响，由笔耕文化传播整理发布。

生物钾肥对烤烟K326生长发育的影响

Effects of Biotic Potassium on Agronomic Characters and Economic Characters of Flue-cured Tobacco Variety K326

[1] [2]

DING Can , LIU Jing （ 1. School of Tobacco Sciences, Yunnan Agricultural University, Kunming 650201, China 2. Zhonghui Education Group, Kunming 650000, China）

[1]云南农业大学烟草学院,云南昆明650201; [2]钟慧教育集团,云南昆明650000

文章摘要：为了明确生物钾肥对烤烟生长的影响，在云南石林县对烤烟进行了施用常规肥料（CK）与生物钾肥的比较试验，研究了生物钾肥对烤烟大田生育期、农艺性状、发病率、经济性状等的影响。结果表明：增施生物钾肥使烤烟还苗期缩短3d，整个大田生育期提前5d；增施生物钾肥烤烟的主根长为101cm，极显著高于CK（89cm）；在团棵期，增施生物钾肥的烤烟株高为31．5cm，显著高于CK（29．1cm），在旺长期和封顶后，增施生物钾肥烤烟的农艺性状与CK差异均不显著；烟株发病率和病情指数，总体上表现为施用生物钾肥处理较CK低；增施生物钾肥的烤烟产量、产值和上中等烟比例分别为2565k／h群、52656．0元／hm2、87％，均极显著高于CK（分别为2475kg／hm2、48892．5元／hm2、78％）。可见，增施生物钾肥有利于促进烟株的生长发育、减轻病害、提高烤烟的经济性状。

Abstr：In order to study the effects of biotic potassium on the growth of flue-cured tobacco,the comparative tests were conducted between conventional fertilizer and biotic potassium in Shilin country. The effects of biotic potassium on growth period, agronomic characters, disease incidence and economic characters of the flue-cured tobacco Were studied. The results showed that the see- ding stage was shortened by three days through applying biotic potassium, and the entire field growth period was advanced by five days. The length of taproots by applying biotic potassium was 101 cm and significantly higher than that of the control group （89 cm）. In the rosette stage, the height of plant was 31.5 cm and significantly higher than that in the control group （29. 1 cm）. In the vigorous and capping period, the differences of the agronomic characters were not significant. The disease incidence and disease index of flue-cured tobacco by applying biotic potassium were less than the control group. Moreover,the yield,output value and the upper tobacco ratio after applying biotic potassium were 2 565 kg/ha, 52 656.0 yuan/ha and 87%, respectively, significantly higher than those in the control （2 475 kg/ha,48 892.5 yuan/ha and 780/60 ,respectively）.

文章关键词：

Keyword：:flue-cured tobacco biotic potassium , agronomic characters economic characters disease resistance

课题项目：中国烟草总公司昆明市公司项目（201109）

  本文关键词：生物钾肥对烤烟K326生长发育的影响，，由笔耕文化传播整理发布。