期刊论文

Effects of Modifier Application on Nutrient Contents of Acid Tobacco Soil

中文

中国烟草科学

1007-5119

2020

41

5

20-27

10.13496/j.issn.1007-5119.2020.05.003

湖南省烟草专卖局科技项目“湘西烟区土壤pH变化机制及调控技术研究与应用”(xx15-18Aa01)、“基于微生物组学的湘西山地烟叶品质提升技术研究及应用”(18-21Aa04)。

本校为第一机构

为明确改良剂对酸性土壤理化性状的作用,采用三因素二水平的大田试验和偏Eta~2值(η_p~2)研究了改良剂种类、施用时间和施用量对酸性土壤主要养分的影响效应。结果表明:(1)施用改良剂可提高土壤有机质、碱解氮和有效磷含量18.90%~33.64%、31.02%~61.01%和1.11%~21.16%;改良剂在整地时施用可提高速效钾含量5.56%~22.49%,而在培土时施用会降低速效钾含量0.01%~1.94%。(2)改良剂的种类主要影响土壤有机质和有效磷含量(分别占45.28%和57.14%),施用时间主要影响土壤速效钾含量(占31.44%),用量主要影响土壤碱解氮含量(占30.00%)。(3)改良剂在烤烟移栽后60 d施用主要影响土壤碱解氮含量(占43.22%);在移...

To clarify the effects of modifiers on physical and chemical properties of acidic soil, a field experiment of three factors × two levels with partial Eta^2 value (ηp^2) was conducted to study the effects of modifier types, application time and amounts on main nutrient contents. The results were as follows:(1) The application of modifiers increased the contents of organic matter, alkaline nitrogen and effective phosphorus by 18.90%-33.64%, 31.02%-61.01% and 1.11%-21.16%, respectively;The rapid available potassium content was increased by 5.56%...