WATER MANAGEMENT INCREASES SUGARCANE YIELDS.

被引：0

作者：

Carter, Cade E. ^{[1
]}

Fouss, James L. ^{[1
]}

McDaniel, Victor ^{[1
]}

机构：

[1] USDA-ARS, Baton Rouge, LA, USA, USDA-ARS, Baton Rouge, LA, USA

来源：

Transactions of the American Society of Agricultural Engineers | 1988年 / 31卷 / 02期

关键词：

AGRICULTURAL ENGINEERING - SOILS - Drainage - WATER; UNDERGROUND; -; Management;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Three water management systems were installed on a 7-ha tract of Commerce silt loam soil in Assumption Parish, LA in 1983 and 1984 to determine if the water table could be managed on a field size area and to determine sugarcane response to water management. Each system consisted of closely spaced subsurface drain lines that were connected to a water control sump which had facilities for removing water for drainage or adding water for subirrigation. In 1985, the systems were particularly useful for subirrigation during the summer drought. Sugar yields were 875, 1,656, and 1,321 kg/ha more than those in the check in 1984, 1985, and 1986, respectively. At 1987 sugar prices and drain installation cost estimates, these yield increases were more than enough to make annual payments on a water management system, excluding loan interest and tax credits. Crop production efficiency was enhanced since the amount of sugar produced by the area without water management, could be produced with 18% less land if water management were used.

引用

页码：503 / 507