Fate of nitrogen applied to maize on conventional and minimum tilled Nitisols in Western Ethiopia

Tolessa, D.; Preez, C. C. du; Ceronio, Gert

doi:10.1080/02571862.2007.10634785

Cited by 6 publications

(5 citation statements)

References 23 publications

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“…The N from the fertilizer recovered by the whole plant was 56 % in average, varying from 48 to 62 %. These percentages are larger than those found by Schindler and Knighton (1999), Stevens et al (2005) and Tolessa et al (2007), among others, using tagged fertilizers. These authors recovered from 28 to 45 % of the N applied.…”

Section: Discussioncontrasting

confidence: 66%

Fate of the nitrogen from fertilizers in field-grown maize

Korsakov

Rubio

Lavado

2012

Nutr Cycl Agroecosyst

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Section: Discussioncontrasting

confidence: 66%

Fate of the nitrogen from fertilizers in field-grown maize

Korsakov

Rubio

Lavado

2012

Nutr Cycl Agroecosyst

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“…Nitrate runoff and leaching, which can contaminate surface and groundwater [ 6 ] through seasonal N application losses on cropland, is also one of the major global challenges in cropland watersheds [ [7] , [6] , [8] ]. Ethiopia is one of the emerging countries where the loss of agricultural land is becoming a problem that poses water and environmental risks [ [9] , [10] , [11] , [12] ]. In addition to the resulting pollution of water supplies, it is closely linked to and contributes significantly to food insecurity in many developing countries due to inequality in agricultural production.…”

Section: Introductionmentioning

confidence: 99%

“…In addition to the resulting pollution of water supplies, it is closely linked to and contributes significantly to food insecurity in many developing countries due to inequality in agricultural production. Due to this inequality, the unbalanced trend in nitrogen fertilization management on agricultural lands has increased [ [10] , [11] , [12] , [13] ] the risk of nitrate contamination of surfaces and groundwater.…”

Section: Introductionmentioning

confidence: 99%

Modeling canopy water content in the assessment for rainfall induced surface and groundwater nitrate contamination: The Bilate cropland sub watershed

Assa,

Bhowmick,

Cholo

2024

Heliyon

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“…As result, several negative impacts have been emerging to result change in state of water, gap in agricultural production and environmental insecurity (Kimbi et al, 2022). Among the main factors as a global challenging problem in farmland watershed is (NO -3-N) runoff\leaching which could end up in surface and groundwater to result (NO3 -) contamination (Akale et al, 2018;Bouwman et al, 2005;Elrashidi et al, 2005;Maghanga et al, 2013;Tolessa et al, 2007). Developing country including Ethiopia exposed to insecurity of water, food and environmental degradation because of poor management practices in crop land nitrogen fertilizer (Wassie, 2020).…”

Section: Introductionmentioning

confidence: 99%

Modeling canopy water content in the assessment for rainfall induced surface and groundwater nitrate contamination index from cropland N-fertilizer in Bilate downstream

Assa

Bhowmick

Elias

2023

Preprint

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Crop canopy water content and crop root zone soil water content have been predicted and observed for estimation of crop water balance for the rainy season nitrate runoff and leaching index of the Bilate watershed cropland. For the calibration of earth data observation, the watershed rain gauge station estimated the pattern of rainfall for the main cropping season of crop growth. Cropping season (Apr, May and Jun) monthly mean rainfall between (125mm/month to 165 mm/month) of agro metrological station has predicted time series crop canopy water in the analysis for crop land nitrate-nitrogen leaching/runoff index for the quantification of groundwater and surface runoff nitrate from the Bilate watershed farming zone. May and June were the months in which crops grew in the cropland of the study area, as indicated by the crop biomass statistics from MODIS 006 MOD13Q1-EVI of (Mine 0.19 and Max, 0.57) which is the average crop coefficient Kc for crop growth curve analyzed for model crop parameter. Hyper-spectral indices derived from enhanced vegetation indices (EVI) have been calculated for the analysis of crop zonal biomass statistics (kc) and integrated into the prediction model. The objective of the current research was to predict crop canopy water content in order to determine crop water balance for farmland Nitrogen Nitrate (NO− 3-N) runoff\leaching index for surface and groundwater pollution in the Bilate downstream. The overall predicted result of crop canopy water content has been validated with a regression coefficient (R2) with observed crop root zone soil water content. And the crop land nitrogen balance has been used to confirm the nitrate-nitrogen leaching and runoff index for the study area by comparing the current result with the crop land nitrogen balance.

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Fate of nitrogen applied to maize on conventional and minimum tilled Nitisols in Western Ethiopia

Cited by 6 publications

References 23 publications

Fate of the nitrogen from fertilizers in field-grown maize

Fate of the nitrogen from fertilizers in field-grown maize

Modeling canopy water content in the assessment for rainfall induced surface and groundwater nitrate contamination: The Bilate cropland sub watershed

Modeling canopy water content in the assessment for rainfall induced surface and groundwater nitrate contamination index from cropland N-fertilizer in Bilate downstream

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