The effects of straw disposal and depth of cultivation on the growth, nutrient uptake and yield of winter wheat on a clay and a silt soil

A - Papers appearing in refereed journals

Christian, D. G. and Bacon, E. T. G. 1991. The effects of straw disposal and depth of cultivation on the growth, nutrient uptake and yield of winter wheat on a clay and a silt soil. Soil Use and Management. 7 (4), pp. 217-222.

AuthorsChristian, D. G. and Bacon, E. T. G.
Abstract

Experiments were conducted for one year on two different soil types. On a clay soil straw was either (a) burnt, (b) baled leaving the stubble, or (c) chopped and spread. The soil was tine cultivated to depths of 5, 10 or 15 cm or ploughed to 20 or 30 cm before winter wheat was sown conventionally. In addition, a direct-drilled crop was sown after each straw treatment. On a silt loam soil the direct-drilled, tine cultivated to 15 cm and ploughed to 30 cm treatments following burning or chopping and spreading straw were repeated. Tine cultivation incorporated less straw than ploughing, decreased plant establishment and early growth but did not decrease yield. Direct-drilling through chopped straw decreased yield on the silt loam but not on the clay soil. Short straw (< 5 cm) was easier to incorporate than longer straw. Ploughing was the most efficient method of straw incorporation because it inverts soil. Early effects on crop growth and nutrient uptake following straw incorporation were transient and associated with large amounts of straw in the seeded layer of soil.

KeywordsSoil Science
Year of Publication1991
JournalSoil Use and Management
Journal citation7 (4), pp. 217-222
Digital Object Identifier (DOI)doi:10.1111/j.1475-2743.1991.tb00877.x
Open accessPublished as non-open access
Funder project or code34
ISSN02660032
PublisherWiley

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