Management of plant residue for cassava (Manihot esculenta) production on an acid Ultisol in Southeastern Nigeria |
| |
| Affiliation: | 1. College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China;2. Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture, Key Laboratory of Plant-Soil Interactions, Ministry of Education, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China;1. Department of Soil and Crop Sciences, Colorado State University, USA;2. Natural Resource Ecology Lab, Colorado State University, USA;3. Hue University of Agriculture and Forestry, Vietnam;1. Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo Ward, Kyoto, 606-8502, Japan;2. Rural Development Academy (RDA), Bogra, 5842, Bangladesh;3. Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu City, 501-1112, Japan;4. Department of Irrigation and Water Management, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh;1. Department of Soil Science, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil;2. Department of Forage Plants and Agrometeorology, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil;3. Department of Agronomy, Horticulture and Plant Science, South Dakota State University, Brookings, SD, United States;1. Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;2. Center for Plant Ecology, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou 510650, China;3. University of Chinese Academy of Sciences, Beijing 100049, China;4. Department of Forest Site Environment, Forestry and Forest Products Research Institute, Matsunosato 1, Tsukuba, Ibaraki 305-8687, Japan;5. Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China |
| |
| Abstract: | A study consisting of two experiments was conducted in southeastern Nigeria during 1983 and 1984 to determine whether cassava (Manihot esculenta Crantz) production on sandy, acid Ultisols could be improved by residue management techniques. One experiment studied the effect of location of Eupatorium odoratum mulch on soil properties and crop growth. A second experiment studied the effect of tillage system and Eupatorium odoratum mulch on soil properties and crop growth. In both experiments mulch was applied at an annual rate of 12 t1 ha−1 (25% moisture content) in a split application at planting and 150 days after planting (DAP). No fertilizer was applied during the experiment.Concentration of mulch in the plant row resulted in values of within-row bulk density in the surface 0.10 m which were lower by 15% and 13% in 1983 and 1984, respectively. Tillage in combination with mulch reduced bulk density in the surface 0.10 m by an average of 10% and 9% in 1983 and 1984, respectively. No significant differences were found among other treatments. Soil chemical properties were unaffected by treatments in both experiments. Cassava tuber yield was unaffected by location of Eupatorium odoratum mulch. Both plowing and no-tillage when combined with mulch improved tuber yields. Cassava tuber yields of untilled plots were 16.8 and 12.7 t ha−1 during 1983–1984, and 13.1 and 8.3 t ha−1 during 1984–1985 in mulched and unmulched treatments, respectively. Tuber yields of tilled plots were 14.5 and 13.1 t ha−1 during 1983–1984, and 11.3 and 6.9 t ha−1 during 1984–1985 in mulched and unmulched treatments, respectively. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
