Movement and Retention of NH4-N in Wetland Rice Soils as Affected by Urea Application Methods

Siddique, Imran Ahammad; Mahmud, Abdullah Al; Hossain, Mahmud; Islam, Md. Rafiqul; Gaihre, Yam Kanta; Singh, Upendra

doi:10.1007/s42729-019-00148-2

Cited by 18 publications

(9 citation statements)

References 39 publications

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“…Maintaining the incubation temperature (25˚C) and soil moisture content around 35% water-filled pore space throughout the experiment period allowed for considerable NH 3 volatilization loss (up to 38% of applied N). These losses aligned with other studies that reported NH 3 loss of 15 to 64% of applied N from a surface applied urea-N fertilizer (San Francisco, Urrutia, Martin, Peristeropoulos, & Garcia-Mina, 2011;Siddique et al, 2020;Vaio et al, 2008). Cation exchange capacity and N 2 fixation capacity can affect soil NH 3 volatilization, likely because these soil properties control the amount of available total applied N near soil surface (Ferguson et al, 1984).…”

Section: Discussionsupporting

confidence: 87%

Coal char affects soil pH to reduce ammonia volatilization from sandy loam soil

Panday

Mikha

Maharjan

2020

Agrosystems Geosci & Env

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Ammonia (NH 3) volatilization loss adversely affects N availability in soil-plant systems, reduces crop yield, and negatively impacts environment. Char (coal combustion residue), which contains up to 293 g kg −1 total C by weight, has been shown to reduce NH 3 volatilization due to its considerably high surface area and cation exchange capacity. The NH 3 loss can be greatly affected by a shift in soil pH or urea hydrolysis. A 21-d laboratory study was conducted to evaluate the effects of char on soil pH, N transformations, and subsequent NH 3 volatilization in sandy loam soil. Two char rates (0 and 13.4 Mg C ha −1) and two urea rates (0 and 200 kg N ha −1) were mixed in soil in four 2-way combinations with four replications of each. There were 11 sets of all treatment combinations and each set was analyzed for soil moisture, pH, NH 3 volatilization, and residual N (urea, NH 4 , and NO 3) every other day for 3 wk. Char application reduced cumulative NH 3 loss in the fertilized treatment. Reduction in NH 3 loss due to char addition was evidenced by greater residual NH 4-N on certain days in treatments with char compared to treatments without char. Char did not affect urea hydrolysis process but it lowered soil pH in the fertilized treatments in the first week. This study supported our hypothesis that char altered soil pH and thereby reduced NH 3 volatilization loss from the fertilized soil. Abbreviations: CEC, cation exchange capacity. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Discussionsupporting

confidence: 87%

Coal char affects soil pH to reduce ammonia volatilization from sandy loam soil

Panday

Mikha

Maharjan

2020

Agrosystems Geosci & Env

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“…It seems that that the improvement in grain yield with Zn application differs with rice variety based on the response in grain weight or the number of spikelets panicle −1 . The productivity variation among rice varieties caused by N and Zn fertilizer application established in this study could be about the ability of N use efficiency, which the lower ability may result in higher rate of N loss by ammonia volatilization, especially in the waterlogged condition (Siddique et al 2019).…”

Section: Discussionmentioning

confidence: 89%

Responses of Grain Yield and Nutrient Content to Combined Zinc and Nitrogen Fertilizer in Upland and Wetland Rice Varieties Grown in Waterlogged and Well-Drained Condition

Yamuangmorn

Rinsinjoy

Lordkaew

et al. 2020

J Soil Sci Plant Nutr

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This study explored the response in grain yield and quality of upland and wetland rice varieties to a combination of zinc (Zn) and nitrogen (N) fertilizers under two water management regimes. A factorial arrangement based on a randomized complete block design composed of three factors was carried out with three independent replications. Upland and wetland rice varieties were grown with three fertilizer treatments; the optimum N rate (86 kg N ha −1) without Zn application, the optimum N rate with Zn (50 kg ZnSO 4 ha −1), and the high N rate (172 kg N ha −1) with Zn under waterlogged and well-drained conditions. Grain yield was 27% lower in the well-drained than in the waterlogged condition in wetland rice, while there was no effect in upland rice. Application of optimum N with Zn application produced the highest grain yield in upland rice, while yield was the highest in wetland rice in high N with Zn application. Upland rice grown in the well-drained condition with the optimum and high N with Zn treatments enhanced Zn concentration by 45% and 29% higher than the treatment without Zn, respectively, while it had no difference among three treatments in the waterlogged condition. Wetland rice variety grown under the well-drained condition in optimum and high N rate with Zn treatments were equally effective in improving grain Zn concentration at the average of 88% compared to the control. While rice grown under the waterlogged condition in the high N with Zn treatment had improved 92% the concentration. The optimum N rate with Zn application increased grain yield in upland rice, while the higher N input is required for wetland rice. Grain Zn concentrations of upland and wetland rice varieties were enhanced by applying Zn fertilizer; however, the increased level was depended on N application rate in the individual water condition.

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“…Brazil is the main rice producer outside the Asian continent, and about 75% of total rice production comes from the south of the country in flood irrigation areas (SOSBAI 2018). Rice cultivation in this region presents major challenges (Siddique et al 2019), especially the occurrence of diseases, which is a limiting factor for the cultivars to attain their productive potential.…”

Section: Introductionmentioning

confidence: 99%

Influence of Blast on the Nutrition and Yield of Irrigated Rice in Southern Brazil

Ogoshi

Carlos

Waldow

et al. 2020

J Soil Sci Plant Nutr

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In recent decades, nitrogen fertilization rates have increased significantly in irrigated rice fields in southern Brazil. However, there is a gap in knowledge concerning the use of these high rates of nitrogen fertilization in cultivars with a high yield potential, and susceptible to rice blast. We therefore conducted a field experiment in the 2014/2015 and 2015/2016 crop year to evaluate blast severity, plant tissue nutrition, and yield and grain quality with increasing nitrogen fertilization levels in a rice blast-susceptible cultivar (Guri Inta CL). The experiment had three factors, with factor 1: N doses (0, 60, 120, and 180 kg ha −1), factor 2: sowing dates (early and late), and factor 3: with and without fungicide application. The experimental design was randomized blocks with four replications. The area under the disease progress curve was positively influenced by the increase of N rates in the two crops years. Grain yield had a negative quadratic effect as a function of N rates. Increased N levels reduced the thousand grains weight. Late sowing and non-application of fungicide increased disease severity; there was reduced yield, grain quality, and N use efficiency. It is concluded that the use of N levels greater than 60 kg ha −1 in rice blast-susceptible cultivars in southern Brazil increases disease severity with lower N use, reduces grain yield and grain quality.

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Movement and Retention of NH4-N in Wetland Rice Soils as Affected by Urea Application Methods

Cited by 18 publications

References 39 publications

Coal char affects soil pH to reduce ammonia volatilization from sandy loam soil

Coal char affects soil pH to reduce ammonia volatilization from sandy loam soil

Responses of Grain Yield and Nutrient Content to Combined Zinc and Nitrogen Fertilizer in Upland and Wetland Rice Varieties Grown in Waterlogged and Well-Drained Condition

Influence of Blast on the Nutrition and Yield of Irrigated Rice in Southern Brazil

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