The soil loss in Ethiopia in general and in southern Ethiopia in particular has becoming critical to be considered as burning issue. This research was carried out to investigate the effects of soil bund and fanyajuu bund on crop yield on the cropping pattern of the farmers on their fields. Randomized complete block design (RBCD) with seven replication and three position, (lower, middle and upper) and wheat as a test crop were used for the investigation. Data on plant height, 1,000 seed weight, number of seed per spike, grain yield and day to 50% spiking were taken. Considering the seven locations level fanyajuu and level bund treated plots showed 50.9% and 43.2% greater yield than the control plot, respectively. Correlation analysis showed significant correlation with most of soil physico-chemical properties and agronomic characteristics on level bund and level fanyajuu whereas it showed insignificant correlation with control plot. Finally it was suggested that further study should be conducted under different agro-ecological zones to attain more comprehensive results.
Soil erosion is now almost universally recognized as a serious threat to man's well-being, if not his very existence. As a result, we assessed the soil physicochemical properties of two possible levels of soil bund and fanya juu. RCBD with three replications was used to collect soil samples from each soil conservation structure. Five composite soil samples were collected from each soil structure based on slop (0-30cm). Soil physicochemical properties such as erosion index, dispersion ratio, and erodibility proportionality ratio were investigated. The effect of different soil structure levels revealed that soil properties differed significantly (P≤0.05) for all parameters studied. The control plots had significantly higher (P≤0.05) dispersion ratio, erosion indexes, and erodibility proportionality than the soils treated by the level bund and level Fanya juu structures. On the control plot, this result showed lower clay content and higher sand content. The level of soil bund and fanya juu had a significant (P≤0.05) effect on soil OC, CEC, OM, and TN, as well as available phosphorous and potassium. As a result, all related soil properties show a positive relative change when the level of soil bund and fanya juu is compared to the control plot. Aside from this result, the dynamic natures of the sciences compel us to conduct additional research based on the agro-ecological zones of the study area.
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