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Effect of Short-term No-tillage on Soil Water Physical Property of Soybean Field in Black Soil Zone(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2012年03期
Page:
374-380
Research Field:
Publishing date:

Info

Title:
Effect of Short-term No-tillage on Soil Water Physical Property of Soybean Field in Black Soil Zone
Author(s):
JIANG Heng1; 2; HAN Xiao-zeng1; ZOU Wen-xiu1; YANG Chun-bao1
1.Key Laboratory of Mollisols Agroecology,National Observation Station of Hailun Agroecology System,Northeast Institute of Geograpthy and Agroecology,Chinese Academy of Sciences,Harbin 150081,Heilongjiang;
?2.Graduate School of Chinese Academy of Sciences,Beijing 100049,China
Keywords:
No-tillage; Traditional tillage; Soil water aggregate; Soil physical properties
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2012.03.008
Abstract:
Tillage and fertilization are two important factors impacting soil water physical properties.For finding out the effect of tillage and fertilization on soil water physical properties and their interactions,we researched the influence of four treatments,including chemical fertilizer plus traditional tillage(NP+CT),chemical fertilizer plus no-tillage(NP+NT),no-fertilizer plus traditional tillage(CK+CT)and no-fertilizer plus no-tillage(CK+NT),on soil water physical properties based on long-term field experiments located in Hailun Agricultural Ecology Station of Chinese Academy of Sciences.Compared to traditional tillage,short-term(three years)no-tillage significantly increased the stability of water stable aggregates with increased water stable aggregates contents (＞0.25 mm） by 9.03%,and also increased mean weight diameter and geometric weight diameter by 10.90% and 20.39%.There were no interactions within tillage and fertilization,but tillage practices could account for more variations of water stable aggregates’ stabilities,compared with fertilization.No-tillage significantly increased soil bulk density,and decreased soil total porosity,capillary water content,saturated water content and field capacity that in 0-10 cm soil profile.Fertilization could only explain the variations of capillary water content in 0-10 cm soil profile significantly,and it had significant interaction effect on soil bulk density with tillage methods.Considering tillage practices and fertilization,tillage practices could explain more variation of soil bulk density,soil total porosity,capillary water content,saturated water content and field capacity.Tillage practices and fertilization had no significant effect on soil water physical properties in 10-20 cm soil profile.So,tillage practices are one important factor influencing soil water physical properties in study site.

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Last Update: 2014-08-16