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United States Department of Agriculture

Agricultural Research Service

Title: Cotton Production under Long-Term Conservation Tillage in a Coastal Plain Soil

Authors
item Hunt, Patrick
item Bauer, Philip
item Matheny, Terry

Submitted to: National Cotton Council Beltwide Cotton Conference
Publication Type: Abstract Only
Publication Acceptance Date: January 30, 1997
Publication Date: N/A

Technical Abstract: Conservation tillage can conserve natural resources and optimize crop productivity. It has been shown to be superior over conventional tillage for production of cotton (Gossypium hirsutum L.) in a wheat (Triticum vulgare) double cropping system in South Carolina. However, late planting in June frequently resulted in low yields. Consequently, early planting of a full season cotton cultivar may be required to optimize yield. A 2-yr study was conducted to investigate the influence of long-term conservation tillage on a 2-yr rotation with corn (Zea mays), barley (winter cover crop), and cotton grown on a Norfolk loamy sand when cotton was planted in May. Four cotton cultivars (ChemBreed 232 and 407; Delta and Pine Land 90 and 5415) were planted in May 1995 and 1996. Mean cotton lint yield was 833 kg/ha. There were no significant differences for tillage, cultivar, or interactions between cotton cultivars and tillage systems for lint or seed yield. Neither tillage nor cultivars had a significant effect on plant dry matter or nitrogen accumulation. These studies showed that cotton production with conservation tillage in a 2-yr rotation with corn is a feasible cropping system in the southeastern Coastal Plain. Additionally, use of conservation tillage with cotton production will conserve the soil through controlled soil erosion and increased soil organic matter.

Last Modified: 4/19/2014
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