Abstract
Objectives: To find out the method which could effectively control erosion to improve the crop growth parameters at Buhoro hill. Methods/Statistical Analysis: The experiments have considered three plots with three different erosion control methods such as the traditional plowing methods (M1) which was the control, anti-erosive hedges planting (M2) and anti-erosive hedges coupled with anti-erosive ditches (M3). The experiments were carried out in 2016 and 2017. Data were recorded at three homogeneous regions (upstream, middle and downstream) by choosing two lines at each region and analyzed through SPSS at P<0.05 for significative difference. Finding: The results showed lowest value for the control and the plot with hedges, especially for the lines near the hedges. Moreover, these outcomes highlighted the method M3 (anti-erosive hedges coupled with anti-erosive ditches) as the effective method in improving the studied parameters although the significance was not apparent in the first year. The method (M3) has effectively enhanced the leaf number; leaf area and root length than other methods, especially in the second year with a general significance difference among the treatments. Furthermore, the outcomes revealed significance effects of combining hedge and ditches method (M3) in improving stem girth and plant height for both years. Although many results reported positive effects of anti-erosive hedge planting only than the control, especially in Burundi, where the use of hedge plantation only is more frequent, to couple hedges and ditches is more effective as revealed in the present study. Application/Improvements: These results suggest M3, as the most effective method in improving bean growth parameters at Buhoro hill in Gashikanwa commune. Keywords: Anti-Erosive Hedges Coupled with Anti-Erosive Ditches Method, Anti-Erosive Hedges Planting Method, Beans Plant, Growth Parameters, Soil Erosion, Traditional Plowing Method
Highlights
Soil erosion is a natural process in which rocks, soil or dissolved material are moved from one location to another[1]
The first method, M1, was the traditional plowing method on P1, set as a control; the second, M2, was the anti-erosive hedges planting method on P2, and the third method, M3, constituted by the anti-erosive hedges coupled with anti-erosive ditches; was implemented on P3
Regarding to S2, the maximum plant height on the 2nd December 2016 was observed for the implemented method M3 with 12.8cm, followed by the method M1 of 12.5 cm, while the minimum of 10.7cm was observed for M2 method
Summary
Soil erosion is a natural process in which rocks, soil or dissolved material are moved from one location to another[1]. Erosion reduces soil productivity so slowly that the reduction may not be recognized until land is no longer economically suitable for growing crops[4]. It negatively affects crop yields[5]. Effects of Erosion Control Methods on Bean Growth Parameters erosion decreases agricultural productivity due to upper nutrient loss[6] and a reduction in organic matter[7]. Erosion reduces the productivity of all natural ecosystems as well as agricultural, forest, and pasture ecosystems[8] It generally increases runoff, resulting in decreased available soil water and reduced plant growth[9,10]. This study is a contribution; it intends to analyze the effects of different soil erosion control methods on plant bean growth parameters
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