+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Effects of crop and pasture rotations and surface cover on rainfall infiltration on a Kandosol in south-west Queensland

Effects of crop and pasture rotations and surface cover on rainfall infiltration on a Kandosol in south-west Queensland

Australian Journal of Soil Research 46(3): 203-209

An experiment was conducted on a Kandosol in south-west Queensland from 2001 to 2005 to determine the effects of fallow management practices and crop and pasture rotations on soil properties and crop production. In April 2004, infiltration measurements were made using a rainfall simulator at the end of a 6-month fallow period following harvest of crop phases (wheat under reduced tillage and zero tillage, chickpea under zero tillage) and following termination of pasture phases (2-year legume and grass + legume leys) with herbicide application and zero tillage during the fallow period. Measurements were made at 3 surface cover levels in each treatment: (i) where crop or pasture dry matter was cut at ground level and removed to approximate 0% cover, (ii) at existing cover percentage, and (iii) where wheat straw was added to give 100% cover. In a separate study to monitor water infiltration, the movement of bromide applied to the soil surface in November 2003 was monitored in the soil profile to 1.5 m soil depth in April 2004 and February 2005.Mean cumulative infiltration after 100 mm rainfall over 1 h was 35, 42, and 69 mm (l.s.d. P = 0.05, 6) with 0%, existing, and 100% cover, respectively, and was greater following wheat (52 mm) than following chickpea (39 mm) under zero tillage (l.s.d. P = 0.05, 13). Short-term pasture leys did not appear to improve infiltration characteristics of the soil under the conditions of this study.In the rainfall simulator study, mean drainage of water below 1.5 m soil depth was 8.5% of applied rainfall. In the bromide tracer study, only similar to 12% of the applied bromide could be accounted for in the 0-1.5 m soil depth 15 months after application. Rainfall received during this period was similar to the long-term mean amount.Results demonstrate the importance of surface cover in increasing rainfall infiltration on this soil, thereby potentially improving soil water storage for crop and pasture production and reducing the risk of runoff and soil erosion. However, the relatively rapid movement of water and solutes through the soil profile has implications for possible adverse effects of drainage to lower parts of the landscape and for nutrient leaching below the root-zone, decreasing the availability of soil and applied nutrients to crops and pastures.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 022506554

Download citation: RISBibTeXText

DOI: 10.1071/SR07162

Related references

Pasture-crop rotations for sustainable production in a wheat and sheep-based farming system on a Vertosol in south-west Queensland, Australia. Animal Production Science 49(8): 682-695, 2009

Crop responses to lime in long-term pasture-crop rotations in a high rainfall area in south-eastern Australia. Australian Journal of Agricultural Research 52(3): 329-341, 2001

The influence of rainfall on the nutritive value of a semi-arid mulga pasture in south-west Queensland. Tropical Grasslands 7(1): 143-147, 1973

Crop and pasture rotations at coonalpyn south australia effects on soil borne diseases soil nitrogen and cereal production. Australian Journal of Experimental Agriculture & Animal Husbandry 24(127): 555-564, 1984

Soil organic matter under crop rotations. II. Effect of crop rotations and pasture. Ciencia del Suelo 13(1): 21-27, 1995

Winter and summer growth of pasture species in a high rainfall area of south-eastern Queensland. Tropical Grasslands 6(1): 45-54, 1972

The dispersal of introduced white snails in pasture-crop rotations in South Australia. Unknown, 1993

Cover crop effects on spring soil water content and the implications for cover crop management in south coastal British Columbia. Agricultural Water Management 88(1-3): 92-98, 2007

Microrelief rainfall and cover effects on infiltration. Soil & Tillage Research 16(3): 307-327, 1990

Effects of rainfall intensity, underlying surface and slope gradient on soil infiltration under simulated rainfall experiments. CATENA 104: 93-102, 2013

The effect of surface cover on infiltration rate using an oscillating nozzle rainfall simulator in steep forest plantations. Transactions - Japanese Geomorphological Union 29.1, 2008

The role of rape in crop rotations in the south-west. 6th International rapeseed conference: 44, 1983

Germination responses of native plant seeds to rainfall in south-west Queensland. Tropical Grasslands 7(1): 99-104, 1973

Integrating crop and pasture in a high rainfall environment in south eastern Australia. Proceedings of the XVI International Grassland Congress, 4-11 October 1989, Nice, France: 543-544, 1989

Adaptation of introduced pasture, shade and crop species on cracking clays (vertisols) in north-west Queensland. Australian Plant Introduction Review 19(1): 1-27, 1987