期刊论文

The Effect of Different New Potassium-rich Soil Conditioners on Potassium Applying Characteristics of Soils and Tobacco Quality

中文

中国烟草科学

1007-5119

2017

38

4

64-69,75

10.13496/j.issn.1007-5119.2017.04.010

中国烟草云南省公司科技计划项目“保山烟区酸化土壤改良关键技术研究与应用”(2015YN22) 湖南中烟工业有限责任公司科技项目“特色优质烟叶开发”(2016HN08)

本校为第一机构

为探究在中耕培土期追施富钾土壤调理剂对烤烟生产的影响,利用矿物钾肥(水热法)、木本泥炭基腐植酸钾、矿物钾肥(煅烧法)部分替代追肥中的KNO_3或K_2SO_4,研究其对烤烟根区土壤pH、钾含量及烤烟不定根生物量和烟叶品质的影响。结果表明,在中耕培土期追施富钾土壤调理剂能显著提高采烤结束时烟株根区土壤pH,促进烟株不定根发育及地上部分生物量的增加,效果为矿物钾肥(水热法)>木本泥炭基腐植酸钾>矿物钾肥(煅烧法)。追施矿物钾肥(水热法)及木本泥炭基腐植酸钾能显著提高耕层土壤速效钾(0~15 cm土层)、缓效钾(15~30 cm土层)及中下部烟叶中的钾含量,其0~15 cm土层速效钾含量分别高于对照13.55%、12...

The purpose of this study was to explore the effect of the potassium-rich soil conditioners on the topdressing during cultivation hilling of flue-cured tobacco production. In this study mineral potash (hydrothermal method), mineral potash (calcination method) and wood peat derived potassium humate were used to replace part of KNO_3 or K_2SO_4 on the topdressing. Their effects on the contents of pH, K in flue-cured tobacco root zone and the adventitious root, biomass and quality of flue-cured tobacco were studied. The results showed that soil pH...