Author:
Witharama W. R. G.,Naylor Robert E. L.,Whytock G. P.
Abstract
Experiments were conducted in Sri Lanka to compare weed seedling emergence in three sugarcane plots of 0.1 ha planted in October 1995, January 1996, and April 1996. In each plot, weed seedling emergence was monitored for 20 wk in five permanent quadrats on each of three microsites: on ridges, in furrows, and on adjacent fallow land. Soil moisture (0 to 5 cm) and soil temperature (at 2.5 cm) were also recorded. Only crowfootgrass, swamp millet, and guineagrass (all grasses) occurred in all nine planting time-by-microsite combinations. About half of all seedlings emerging over the three planting times were swamp millet, and the next most frequent species was tropic ageratum. The composition of the emerged flora was similar on ridges and in furrows, but more seedlings emerged in the furrows than on the ridges. The highest number of emerged seedlings and of species occurred on adjacent fallow land. The major factor influencing seedling emergence appeared to be soil moisture.
Publisher
Cambridge University Press (CUP)
Subject
Plant Science,Agronomy and Crop Science
Reference24 articles.
1. Porous-pot tensiometers, 70 mm long by 33.7 mm in diameter; Daichi Keiki, Japan.
2. Witharama W. R. G. 1988. Alley Cropping Under Gliricidia and Leucaena in Mahaweli System C. M.Sc thesis, Peradeniya, Sri Lanka University of Peradeniya. 85.
3. Nilkalami (Ipomoea hederacea), a menace to sugarcane;Thakar;Hortic. Abs.,1954
4. FATE OF SEEDS OF SOME ANNUAL WEEDS IN DIFFERENT DEPTHS OF CULTIVATED AND UNDISTURBED SOIL
5. Periodicity of seedling emergence in 6 monocotyledonous weeds of southeastern Nigeria;Marks;Acta Oecol. Oecol. Appl.,1983b
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献