Reduction of Ammonia Loss from Urea through Mixing with Humic Acids Isolated from Peat Soil (Saprists)

Bernard, Regis; Ahmed, Osumanu Haruna; Majid, Nik Muhamad Nik Ab.; Jalloh, Mohamadu Boyie

doi:10.3844/ajessp.2009.393.397

Cited by 17 publications

(4 citation statements)

References 15 publications

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“…Additionally, the acid nature waste water from sago (pH 3.5) could also be exploited for ammonia loss from urea. NH 3 volatilization increase with higher soil pH because of the dissociation of NH 4 + to NH 3 , thus increasing the potential for volatilization (Taufik et al, 2009;Ameera et al, 2009;Bernard et al, 2009;Rosliza et al, 2009a, b;Latifah et al, 2010;Zhengping et al, 1991). There is continuing need to improve the efficiency of N fertilizer use, to achieve more efficient production of food crops.…”

Section: Introductionmentioning

confidence: 99%

Effect of mixing urea with zeolite and sago waste water on nutrient use efficiency of maize (Zea mays L.)

Omar¹,

Ahmed²,

Muhamad³

2011

Afr. J. Microbiol. Res.

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The efficiency of urea is poor due to the substantial amount of N lost to the atmosphere by ammonia volatilization. Thus, the objectives of this greenhouse study were to evaluate the effectiveness of mixing urea with zeolite and sago waste water on N, P and K uptake and their use efficiency in maize cultivation, and soil exchangeable ammonium, available nitrate, pH, exchangeable K, and available P contents. The treatments evaluated were: No fertilizer (T0), 2.02 g urea (T1), 2.02 g urea + 30 g zeolite + 7 L sago waste water (T2), 2.02 g urea + 40 g zeolite + 7 L sago waste water (T3), and 2.02 g urea + 7 L sago waste water (T4). Triple Super Phosphate (TSP) and Muriate of Potash (MOP) were used as sources of P and K for all the treatments except for T0. These fertilizers were applied twice that is 10 and 28 days after planting. Phosphorus and K requirements of the test crop were met by applying TSP and MOP (standard rate for the test crop) to plants of all the treatments except T0. The mixtures of sago waste water, and zeolite, with urea had significant effect on dry matter, N, P, K uptake and N, P, K use efficiency compared with urea without additives. These mixtures also significantly increased soil exchangeable ammonium, K, Ca, Mg, available P, and nitrate contents compared with urea without additives. Amending urea with sago waste water and peat soil water can reduce ammonia loss by encouraging formation of ammonium and nitrate over ammonia. Additionally, the mixtures ensure N, P, K uptake and their use efficiency while at the same time making soil ammonium, K, Ca, Mg, P, and nitrate available for plant use.

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Section: Introductionmentioning

confidence: 99%

Effect of mixing urea with zeolite and sago waste water on nutrient use efficiency of maize (Zea mays L.)

Omar¹,

Ahmed²,

Muhamad³

2011

Afr. J. Microbiol. Res.

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“…Camberato (2001) reported that sandy clay loams generally have low pH-buffering capacity; therefore, pH increases and ammonia volatilization can be substantial. Bernard et al (2009) also attributed ammonia loss to high pH and low CEC of soil. Griggs et al (2007) have reported more ammonia volatilization from light-textured (silt loam) soil than from a heavy-textured (clay) soil.…”

Section: Effect Of Soil Texture On Ammonia Lossmentioning

confidence: 95%

“…Because of high pH and NH 4 concentration in the microsphere following urea hydrolysis, ammonia escapes from the soil surface (Fenn and Richards 1989). Ammonia volatilization may vary in soils with different textures as light texture could aggravate the problem because of low cation exchange capacity (CEC) (Bernard et al 2009). Urea loss may be controlled with fertilizer application strategies that may reduce soil pH of the immediate fertilizer microsphere through the addition of P fertilizer (Ahmed, Aminuddin, and Husni 2006;Fan and Mackenzie 1993).…”

Section: Please Scroll Down For Articlementioning

confidence: 99%

Reduction in Ammonia Loss by Applying Urea in Combination with Phosphate Sources

Akhtar

2012

Communications in Soil Science and Plant Analysis

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A laboratory experiment was carried out to study the influence of 100 mg phosphorus pentoxide (P 2 O 5 ) kg -1 soil from various phosphate sources on ammonia losses from soils amended with urea at 200 mg nitrogen (N) kg -1 soil. Irrespective of soil type, ammonia (NH 3 ) loss was significantly greater from untreated soil (control) than from the soil treated with phosphorus (P) sources. A maximum decrease in ammonia loss (56%) was observed by applying phosphoric acid followed by triple and single superphosphate. Ammonia losses were significantly greater from sandy clay loam than from clay. Rate of ammonia volatilization was maximum during the first week of incubation and became undetectable for both soils at 21 days after incubation. The addition of phosphate sources significantly decreased pH in the sandy clay loam, but in the clay a significant decrease was observed only with the phosphoric acid addition. Addition of phosphate fertilizers was beneficial in reducing NH 3 losses from urea.

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“…In arable soils large NH 4 + and NO 3 contents are transient. Their fate is incorporation into the plant and microbial biomass, absorption of NH 4 + into the «humic» and clay structures within the soil [5,36], gaseous losses as nitric oxide, nitrous oxide and di-nitrogen [8,37,40,41] and for NO 3 leaching into ground water and/or lower soil horizons [16] + content and of MIN and NITR rates after tomato harvest can be explained by the incorporation of the tomato residue by disking (the N content of the above ground biomass was 173±15 kg N ha -1 ). Consequently after spring fertilization of the barley crop (57 kg N ha -1 ), in April 2009, the NH 4 + content of the 74 cm top horizon was 184,9±15,4 kg N ha -1 equivalent to a concentration of 19,1±2,7 mg N kg -1 (Fig.…”

Section: Fig 4 Changes In C/n Ratio In the 74 CM Top Horizon During T...mentioning

confidence: 99%

Changes in Soil Carbon and Nitrogen Dynamics During a Three Year Crop Rotation on a Chernozem Soil in the Southern Ukraine

Medinets¹,

Skiba²,

Медінець³

et al. 2015

Вісник ОНУ

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Soils in the southern Ukraine have been reported to have lost 32% to 40%, or 51 to 71 t ha-1 of their original soil organic matter (SOM) pool between 1881-1981, mainly due to inappropriate soil management by collective farms during 1930-1981. In this period agricultural management was directed towards irresponsible expansion of arable fields and short-term yield increases. Modern, sustainable agricultural management is slowly being introduced. There is a need to assess to what extend such methods stabilize and build new SOM to support and increase fertility both in the short and long-term. This study investigates the influence of a modern crop rotation (onion-tomato-barley) on one field, which was tilled, fertilized, irrigated and harvested in response to the crops needs, on the dynamics of total organic carbon (TOC) and total nitrogen (TN) storage in the fertile topsoil of a Chernozem typical for southern Ukraine. Crop residue remained on the field. The results of three years (2007-2009) of quarterly monitoring of the key topsoil parameters TOC, TN, extractable mineral N (NH4+, NO3-, NO2-), pH, potential net N mineralisation (MIN) and nitrification (NITR) rates and physical characteristics (bulk density, soil texture) are discussed. Moderate (114 kg N ha-1 yr-1) and low (28 kg N ha-1 yr-1) N fertilizer applications together with adequate drip irrigation for onion and tomato and incorporation of plant residue did significantly change the C and N pools. Total organic carbon and TN contents of the topsoil horizon (0-74 cm) were found to increase by 20% (26.8 t C ha-1) and 38% (5.9 t N ha-1), respectively. Largest increases were measured in the surface layer (0-27 cm) with a 45% increase in TOC and a 36% increase in TN content. The largest average soil NH4+ content of the topsoil horizon (0-74 cm) was observed in 2009 under barley (154.9±41.3 kg N ha-1) and the maximum average NO3- content was 166.9±44.5 kg N ha-1 under tomato in 2008. Mineralisation and nitrification rates significantly varied between years and with season and were largest in the first year of the crop rotation (onion), 41.0±57.3 kg N ha-1 and 36.6±74.4 kg N ha-1 for MIN and NITR, respectively. The incorporation of plant residues and efficient N fertilizer applications within a crop rotation appeared to be effective in stabilizing the existing SOM and promoting SOM build-up.

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Reduction of Ammonia Loss from Urea through Mixing with Humic Acids Isolated from Peat Soil (Saprists)

Cited by 17 publications

References 15 publications

Effect of mixing urea with zeolite and sago waste water on nutrient use efficiency of maize (Zea mays L.)

Effect of mixing urea with zeolite and sago waste water on nutrient use efficiency of maize (Zea mays L.)

Reduction in Ammonia Loss by Applying Urea in Combination with Phosphate Sources

Changes in Soil Carbon and Nitrogen Dynamics During a Three Year Crop Rotation on a Chernozem Soil in the Southern Ukraine

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