Effectiveness of rock wall terraces on soil conservation and crop performance in a southern Honduras steepland farming system /
0. 1). Nitrogen content was significantly greater on the
| Main Author: | |
|---|---|
| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1996.
|
| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | 0. 1). Nitrogen content was significantly greater on the 70% greater in terraced field. Within each terrace, the crop compare soil physical and chemical properties between sites. compared with the unterraced field. Sorghum grain yield was conservation and crop production was studied on a steepland difference in soil texture between terraced and unterraced different between terraced and unterraced fields. The results erosion and maintain crop yield in steep land areas of farm in southern Honduras during the 1995 growing season. fields may explain in part the lower biomass and grain yield. increments from 0 to 75 cm. These samples were analyzed to land. However, total runoff from unterraced sites exceeded matter was significantly greater on the terraced sites (P < of the chemical soil analysis indicated that soil organic of the soil physical analysis indicated that terraced fields random locations within the unterraced field. At every retaining newly eroded material. Indeed, erosion from the Runoff plots were installed on the terraced (35% slope) and sample location soil samples were taken in 15 cm depth sediment yield and runoff. The upslope portion of the 1 m sites. This study shows that the use of rock walls combined sodium, sulfur and pH were generally not statistically Soil was collected at I m intervals between rock walls and at southern Honduras. Standing crop of maize and sorghum were also measured along Standing crop yield on terraced sites was 59% greater tall rock walls had completely filled in with sediment over tended to have lower bulk density. There was no consistent terraced sites had significantly greater standing crop. terraced sites. The low nitrogen content in unterraced terraces was not significantly different from unterraced The effect that rock wall terraces have on soil and water The levels of phosphorus, potassium, calcium, magnesium, the previous decade, thus they were no longer useful for The research compared a site with 10 year old rock terraces total runoff from the terraced field by about 87 mm. transacts between terraced and on unteffaced land. The unterraced (50% slope) sites to determine differences in where the most soil deposition had taken place. The results with an adjacent portion of the field that had no terraces. with minimum tillage and mulch residue, can control soil yields were highest in areas immediately above the rock wall |
|---|---|
| Item Description: | "Major subject: Rangeland Ecology and Management". Vita. |
| Physical Description: | xiii, 80 leaves : illustrations, maps ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references: pages 75-79. |