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首页> 外文期刊>International journal of soil science >Comparative Analysis of Soil Nutrient Balance at Farm Level: A Case Study in Jimma Zone, Ethiopia
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Comparative Analysis of Soil Nutrient Balance at Farm Level: A Case Study in Jimma Zone, Ethiopia

机译：农场水平土壤养分平衡的比较分析：以埃塞俄比亚吉马地区为例

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Soil nutrient depletion is becoming one of the major challenges of agricultural production for the stallholder farmers in Ethiopia. This study was conducted with the aim of determining N, P and K (kg ha-1 year-1) balance at farm level and to assess the role of farmers? wealth diversity in maintaining and improving soil nutrients. The balance of nutrient was determined by monitoring N, P and K flow in to the soil with mineral fertilizer (IN1), manure (IN2), biological nitrogen fixation (IN3) and wet deposition (IN4) and out of the soil through crop product (OUT1), crop residue (OUT2), leaching (OUT3), gaseous loss (OUT4) and water erosion (OUT5). Statistically, highly significant (p = 0.001) difference was observed between locations, resource rich and poor groups farmers for soil chemical properties and nutrient depletion rates. But, none significant (p<0.05) difference was observed between resource rich and medium groups farmers. On the other hand, strongly positive correlation was observed between locations and rate of N (r = 0.91) and K (r = 0.88). The amount of rainfall, use of fertilizers, land management practices and landscape determine the rate of nutrient depletion. Therefore, to ensure smallholder food security and sustainable agricultural practices landscape based integrated soil fertility management practices should be adopt across wealth groups.
机译：土壤养分消耗正在成为埃塞俄比亚摊主农民的农业生产的主要挑战之一。这项研究的目的是确定农场水平上的氮，磷和钾（kg ha -1 年 -1 ）平衡，并评估农民的作用？维持和改善土壤养分的财富多​​样性。通过监测氮，磷和钾的流入来确定养分的平衡，其中的氮，磷和钾通过矿物肥料（IN1），肥料（IN2），生物固氮（IN3）和湿沉降（IN4）以及通过农作物从土壤中流出（OUT1），农作物残渣（OUT2），浸出（OUT3），气体损失（OUT4）和水蚀（OUT5）。从统计学上讲，在地点，资源丰富和贫穷群体的农民之间，土壤化学性质和养分耗竭率存在显着差异（p = 0.001）。但是，资源丰富的中型农民与农民之间没有观察到显着差异（p <0.05）。另一方面，在位置和N（r = 0.91）和K（r = 0.88）的比率之间观察到强烈的正相关。降雨量，肥料的使用，土地管理方法和景观决定了养分消耗的速度。因此，为确保小农粮食安全和可持续农业实践，应在各个财富群体之间采用基于景观的综合土壤肥力管理实践。

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