EFFECT OF INTERVALS BETWEEN APPLICATION AND TILLAGE ON GLYPHOSATE CONTROL OF CYPERUS-ROTUNDUS L

被引:3
作者
CHASE, RL
APPLEBY, AP
机构
[1] Department of Crop Science, Oregon State University, Corvallis, Oregon
关键词
D O I
10.1111/j.1365-3180.1979.tb01528.x
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Research conducted in El Salvador, Central America, demonstrated that an interval of 3 days between application of glyphosate and tillage was sufficient to cause 90% reduction in purple nutsedge (Cyperus rotundus L.) plants, while delays of 11–23 days generally gave slightly less reduction. à second application to the same plots 35 days following tillage resulted in more than 90% reduction with all intervals. Approximately 3 months after the initial treatment, tuber numbers had been reduced to half the original population. Germination of the remaining tubers was reduced by more than 50%. Glyphosate applied during the dry season caused an average of 79% reduction in plant numbers compared with 88% in the rainy season. However, in the dry season, the remaining plants had no competition from other weeds and after 5 months there was only à 40% reduction in nutsedge population. During the rainy season, 1, 2 and 3 kg/ha were equally effective, but 1 kg/ha was not sufficient in the dry season. Copyright © 1979, Wiley Blackwell. All rights reserved
引用
收藏
页码:207 / 211
页数:5
相关论文
共 9 条
  • [1] CHASE RL, 1977, 8 CTR NAC TECHN AGR
  • [2] Doll J. D., 1977, Revista COMALFI, V4, P59
  • [3] Gomez C., 1976, Revista Comalfi, V3, P147
  • [4] HOLM L, 1969, P ASIAN PACIFIC WEED, V2, P1
  • [5] MAGAMBO MJS, 1973, P ASIAN PACIFIC WEED, V4, P191
  • [6] Pulver E. L., 1976, Revista Comalfi, V3, P94
  • [7] RAPID INACTIVATION OF GLYPHOSATE IN SOIL
    SPRANKLE, P
    MEGGITT, WF
    PENNER, D
    [J]. WEED SCIENCE, 1975, 23 (03) : 224 - 228
  • [8] TERRY PJ, 1974, P E AFRICAN WEED CON, V5, P173
  • [9] ZANDSTRA BH, 1975, P ASIAN PAC WEED SCI, V5, P130