文章基本信息

标题：Soil fertility status and wheat nutrient content in Vertisol cropping systems of central highlands of Ethiopia
本地全文：下载
作者：Hillette Hailu ; Tekalign Mamo ; Riikka Keskinen 等
期刊名称：Agriculture & Food Security
电子版ISSN：2048-7010
出版年度：2015
卷号：4
期号：1
页码：19
DOI：10.1186/s40066-015-0038-0
语种：English
出版社：BioMed Central
摘要：Land degradation reduces agricultural productivity and poses a serious threat on food security status of households. In Ethiopia, farmers have been using only urea and di-ammonium phosphate for more than 15 years. Several reports that indicate lack of response to these fertilizers, which could be due to limitation of nutrients other than nitrogen and phosphorus. Therefore, the present study was initiated to evaluate the soil fertility status of ten sites in central highlands Vertisols of Ethiopia and wheat nutrient content. The physico-chemical properties of soils showed that the soils were clayey in texture, neutral to slightly alkaline (pH 7.2–7.9) and low to medium in their organic matter (1.6–3.2 %) content. Total N content was low in 100 % of the samples while 80 % of the soil samples showed P deficiency ( 0.5 mg kg−1), Fe (>5 mg kg−1), and Mn (>1 mg kg−1) contents. However, 70 % of the samples were deficient in Zn ( 0.90) between soil and plant nutrient content was observed for P, K, Mg, Cu, Fe, Mn and Zn, implying that flag leaves at flowering stage can be used to calibrate soil and plant contents for the deficient nutrients.
关键词：Soil ; Plant ; Nutrient ; Soil fertility ; Deficient ; Adequate ; Fertilizer