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INFLUENCE OF SILICA AND NITROGEN CONTENTS AND STRAW APPLICATION RATE ON DECOMPOSITION OF GAINES WHEAT STRAW IN SOIL

J. H. Smith, C. L. Douglas

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Abstract

'Gaines' and 'Nugaines' varieties of soft\nwhite winter wheat (Triticum aestivum)\nyield straw ranging up to about 7 tons per\nacre (2). Growing row crops such as dry edible\nbeans (Phaseolus vulgaris) or sugarbeets (Beta\nvulgaris) following such heavy straw production\nposes special management problems. Straw\nlayers that result from plowing down a large\namount of straw may result in reduced bean\nyields (supposedly because of nitrogen immobilization),\nabnormal sugarbeet root growth,\nand tillage and water movement problems.\nMuch of the tremendous acreage of the irrigated\nwheat grown in the Pacific Northwest\nis in rotation with sugarbeets, potatoes, beans\nand other crops. Therefore, straw residue\nmanagement is a major problem with great\neconomic implications.

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What this paper is about

'Gaines' and 'Nugaines' varieties of soft\nwhite winter wheat (Triticum aestivum)\nyield straw ranging up to about 7 tons per\nacre (2). Growing row crops such as dry edible\nbeans (Phaseolus vulgaris) or sugarbeets (Beta\nvulgaris) following such heavy straw production\nposes special management problems. Straw\nlayers that result from plowing down a large\namount of straw may result in reduced bean\nyields (supposedly because of nitrogen immobilization),\nabnormal sugarbeet root growth,\nand tillage and water movement problems.\nMuch of the tremendous acreage of the irrigated\nwheat grown in the Pacific Northwest\nis in rotation with sugarbeets, potatoes, beans\nand other crops. Therefore, straw residue\nmanagement is a major problem with great\neconomic implications.

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Available abstract

'Gaines' and 'Nugaines' varieties of soft\nwhite winter wheat (Triticum aestivum)\nyield straw ranging up to about 7 tons per\nacre (2). Growing row crops such as dry edible\nbeans (Phaseolus vulgaris) or sugarbeets (Beta\nvulgaris) following such heavy straw production\nposes special management problems. Straw\nlayers that result from plowing down a large\namount of straw may result in reduced bean\nyields (supposedly because of nitrogen immobilization),\nabnormal sugarbeet root growth,\nand tillage and water movement problems.\nMuch of the tremendous acreage of the irrigated\nwheat grown in the Pacific Northwest\nis in rotation with sugarbeets, potatoes, beans\nand other crops. Therefore, straw residue\nmanagement is a major problem with great\neconomic implications.

Key concepts: Straw, Agronomy, Plough, Phaseolus, Tillage, Environmental science, Acre, Yield (engineering)

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INFLUENCE OF SILICA AND NITROGEN CONTENTS AND STRAW APPLICATION RATE ON DECOMPOSITION OF GAINES WHEAT STRAW IN SOIL — Research Paper | ScholarLens