SOIL-PH DECLINE IN RELATION TO ROTATION, TILLAGE, STUBBLE RETENTION AND NITROGEN-FERTILIZER IN SE AUSTRALIA

被引：24

作者：

HEENAN, DP

TAYLOR, AC

机构：

[1] NSW Agriculture, Agricultural Research Institute, PMB, Wagga Wagga, New South Wales

来源：

SOIL USE AND MANAGEMENT | 1995年 / 11卷 / 01期

关键词：

SOIL PH; ROTATIONS; NITROGEN FERTILIZERS; STUBBLE; BURNING; TILLAGE;

D O I：

10.1111/j.1475-2743.1995.tb00487.x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

The decline in topsoil (0-0.1 m) pH (CaCl2) over 11 years (1979-90) was measured in a rotation, tillage, stubble and nitrogen fertilizer experiment on a Chromic Luvisol at Wagga Wagga in S.E. Australia. The rotations consisted of annual wheat cropping (WW) with and without nitrogen fertilizer (100 kg N/ha/year), alternating lupin-wheat (LW) and subterranean clover-wheat (CW). The initial mean pH at the site was 4.9 and the experiment was preceded by subterranean clover-based pasture for most of the previous 19 years. An initial rapid decline in soil pH under all treatments over the first 8-9 years was followed by a 2-3 year period when no further decline was detected. The annual rate of pH decline over the first 8-9 years varied from 0.06 for WW to 0.09 units for WW with added N fertilizer. Apparent steady-state for WW after 11 years was approximately 0.5 pH units higher than for WW with added N fertilizer. There was no difference between CW and LW in the rate of decline or in the apparent steady-state reached. Six years' stubble burning in a LW rotation promoted a slightly higher pH than where stubble was retained. However, there was no significant effect of tillage in either LW or CW rotations. By 1990 the addition of N fertilizer to WW had increased the concentration of exchangeable aluminium by 100% and of manganese by 24%. The inclusion of a legume in the rotation increased the concentration of aluminium but did not affect manganese. However, burning stubble in the LW rotation slightly decreased manganese concentrations.

引用

页码：4 / 9

页数：6

共 22 条

[11]

Helyar K.R., Hochman Z., Brennan J.P., The problem of acidity in temperate area soils and its management, Review papers, National Soils Conference 1988, pp. 22-54, (1988)

[12]

Johnston A.E., Goulding K.W.T., Poulton P.R., Soil acidification during more than 100 years under permanent grassland and woodland at Rothamsted, Soil Use and Management, 2, pp. 3-10, (1986)

[13]

Leeper G.W., The forms and reactions of manganese in the soil, Soil Science, 63, pp. 79-94, (1947)

[14]

Northcote K.H., Soils of aeolian landscapes in part of the Murray Basin of Southeastern Australia, Aeolian landscapes in the semi‐arid zone of south‐eastern Australia, pp. 101-122, (1980)

[15]

Rhoton F.E., Bruce R.R., Buerhrino N.W., Elkin G.B., Langdale C.W., Tyler D.D., Chemical and physical characteristics of four soil types under conventional and no‐tillage systems, Soil Tillage Research, 28, pp. 51-61, (1993)

[16]

Ritchie G.S.P., The chemical behaviour of aluminium, hydrogen and manganese in soils, Soil acidity and plant growth, pp. 1-60, (1989)

[17]

Slattery W.J., Ridley A.M., Windsor S.M., Ash alkalinity of animal and plant products, Australian Journal of Experimental Agriculture, 31, pp. 321-324, (1991)

[18]

Sparrow L.A., Uren N.C., Oxidation and reduction of Mn in acidic soils: effect of temperature and soil pH, Soil Biology and Biochemistry, 19, pp. 143-148, (1987)

[19]

Standley J., Hunter H.M., Thomas G.A., Blight G.W., Webb A.A., Tillage and crop residue management affect vertisol properties and grain sorghum growth over seven years in the semi‐arid sub‐tropics. 2. Changes in soil properties, Soil and Tillage Research, 18, pp. 367-388, (1990)

[20]

Watson E.R., Lapins P., Barron R.J., Effects of initial clover seeding rate and length of ley on pasture production, soil nitrogen and crop yields in a ley farming system, Australian Journal of Experimental Agriculture, 16, pp. 484-490, (1976)

← 1 2 3 →