Methane emission from rice–wheat cropping system in the Indo-Gangetic plain in relation to irrigation, farmyard manure and dicyandiamide application

Pathak, Himanshu; Prasad, Shiv; Bhatia, Arti; Singh, S. S.; Kumar, Sushil; Singh, J. P.; Jain, Monika

doi:10.1016/s0167-8809(03)00033-1

Cited by 88 publications

(47 citation statements)

References 20 publications

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“…The fluctuation of CH 4 emission from small positive to small negative fluxes in ZT − R and ZT + R during whole rice growing period and in CT during later stage of crop growth could be due to intermittent aerobic conditions favouring the growth of methanotrophs resulting into uptake of CH 4 . Negative fluxes of methane during later stages of rice growth has been also reported by Bhatia et al (2011) andPathak et al (2003) from silty clay loam soil of New Delhi, India. In both the years, total seasonal CH 4 emission was much higher in CT based system than ZT based system, irrespective of residue retention (Table 2).…”

Section: Ch 4 Emissionsupporting

confidence: 54%

Tillage, residue and nitrogen management effects on methane and nitrous oxide emission from rice–wheat system of Indian Northwest Indo-Gangetic Plains

Sapkota

Jat

Shankar

et al. 2015

Journal of Integrative Environmental Sciences

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Zero-tillage, residue management and precision nutrient management techniques are being promoted in the rice-wheat (RW) production system of Indo-Gangetic Plains (IGPs) to enhance climate change adaptation and increase food production. These management practices may also influence greenhouse gas emissions through their effects on various soil processes such as oxidation-reduction and nitrification-denitrification. We measured soil fluxes of CH 4 and N 2 O in RW system under three tillage and residue management systems layered with four nitrogen (N) management treatments. The tillage and residue management systems comprised: conventional tillage (CT), zero-tillage without residue retention (ZT − R) and ZT with full residue retention (ZT + R) for both the crops. The four N management treatments for rice were: (a) basmati cultivar with recommended dose of nitrogen (RDN) applied in three splits, (b) basmati cultivar with 80% RDN as basal dose followed by Green Seeker (GS) guided N application, (c) hybrid cultivar with RDN applied in three splits and (d) hybrid with 80% RDN as basal dose followed by GS guided N application. The four N management treatments for wheat comprised combinations of RDN with and without relay green gram (GG), and 80% of RDN as basal dose followed by GS guided N application with and without relay GG. We employed the static chamber method to collect gas samples from the experimental plots which were subsequently analysed using gas chromatograph. Significant CH 4 emissions were detected only in the CT rice system during the initial phase of continuous flooding, irrespective of N management strategies. N fertilization management affected the pattern of N 2 O emission with higher emission rates during crop establishment phase under 80% RDN as basal followed by GS guided N application than conventional RDN. In case of wheat, 80% RDN as basal followed by GS guided N application also induced higher cumulative N 2 O emissions than applying RDN at three regular splits. In rice, ZT-based RW system emitted more N 2 O than CT-based system. Overall ZT-based RW system reduced CH 4 emission but this benefit is counterbalanced by higher N 2 O production compared to CT-based RW system.

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Section: Ch 4 Emissionsupporting

confidence: 54%

Tillage, residue and nitrogen management effects on methane and nitrous oxide emission from rice–wheat system of Indian Northwest Indo-Gangetic Plains

Sapkota

Jat

Shankar

et al. 2015

Journal of Integrative Environmental Sciences

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“…The application of dicyandiamide was also effective in reducing N 2 O emissions from pastoral soils subjected to cattle urine (Kelliher et al 2008;Zaman et al 2009). Pathak et al (2003) also found a reduction in CH 4 emissions in a rice-wheat cropping system from the addition of dicyandiamide to urea. In this study, Nitroteck provided good agronomic results probably because part of the N is in the NH 4…”

Section: Agronomic Performances Of Fertilisersmentioning

confidence: 85%

“…Other studies demonstrated their potential to reduce environmental pollution, in regards to N 2 O emissions (Delgado and Mosier 1996;Shoji et al 2001) and nutrient runoff (Emilsson et al 2007). Abundantly demonstrated also is the positive effect of the use of nitrification inhibitors alone in reducing N 2 O emissions from several agrosystems (Majumdar et al 2000;Serna et al 2000;Macadam et al 2003;Zaman et al 2009) and even other air pollutants, such as methane (Pathak et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen-use efficiency and economic efficiency of slow-release N fertilisers applied to irrigated turfs in a Mediterranean environment

Arrobas

Parada

Magalhães³

et al. 2010

Nutr Cycl Agroecosyst

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The effect of three fertilisers that delay the bioavailability of nitrogen (N) in the soil was compared with ammonium nitrate and a zero N control in two irrigated turfs in NE Portugal. The fertilisers used were: Floranid permanent 16-7-15 (slow-release, IBDU/Isodur fertiliser); Basacote plus 9M 16-8-12 (controlled-release fertiliser, copolymer ethylene acrylic); Nitroteck 20-8-10 (stabilized fertiliser, dicyandiamide as nitrification inhibitor ? coating with polyterpene) and Nitrolusal (ammonium nitrate, 20.5% N), applied all at a rate of 120 kg N ha -1 . Nitrolusal was split into two fractions of 60 kg N ha -1 . Phosphorus (P) and potassium (K) rates were balanced among treatments by using superphosphate (18% P 2 O 5 ) and potassium chloride (60% K 2 O). The turf dry matter (DM) yield and N concentration in dry material were determined from several cuts of biomass throughout the growing season. Based on DM yield, N concentration in dry material and fertilisation costs, indices of N use efficiency and economic efficiency were estimated. Soil nitrate levels were monitored by using anion exchange membranes inserted directly into the soil. Basacote gave significantly lower DM yields than the other fertilised treatments. The apparent N recovery of Basacote was also the lowest. The results showed that Basacote released less N than that required for an adequate plant growth in the beginning of the growing season, hampered the flush of spring growth. Furthermore, the release period of this Basacote formulation, in the environmental conditions of these experiments, seemed to be longer than the length of the growing season. Nitroteck and Floranid yielded similar or even higher DM and apparent N recovery values than did Nitrolusal. The indices of economic efficiency ordered the fertilisers as Nitroteck [ Nitrolusal [ Floranid [ Basacote or Nitrolusal [ Nitroteck [ Floranid [ Basacote, if the costs of P and K fertilisers used to balance the P and K rates in the experimental design were, respectively, taken or not taken into account.

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“…Originally the CH 4 fluxes simulated by the model were higher than the measured fluxes in some rice paddies in India (Pathak et al, 2003). Test runs for the sites where the low CH 4 fluxes were not captured by DNDC indicated that these sites had relatively high leaking rates.…”

Section: Model Modificationmentioning

confidence: 88%

“…Two field experiments were used for the calibration of the model (Pathak et al, , 2003. The experiments were conducted at the experimental farm of the Indian Agricultural Research Institute, New Delhi, India.…”

Section: Model Calibrationmentioning

confidence: 99%

Greenhouse gas emissions from Indian rice fields: calibration and upscaling using the DNDC model

2005

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Abstract. The Denitrification and Decomposition (DNDC) model was evaluated for its ability to simulate methane (CH 4 ), nitrous oxide (N 2 O) and carbon dioxide (CO 2 ) emissions from Indian rice fields with various management practices. The model was calibrated and validated for field experiments in New Delhi, India. The observed yield, N uptake and greenhouse gas (GHG) emissions were in good agreement with the values predicted by the model. The model was then applied for estimation of GHG emissions from rice fields in India using a newly compiled soil/climate/land use database. Continuous flooding of rice fields (42.25 million ha) resulted in annual net emissions of 1.07-1.10, 0.04-0.05 and 21.16-60.96 Tg of CH 4 -C, N 2 O-N and CO 2 -C, respectively, with a cumulated global warming potential (GWP) of 130.93-272.83 Tg CO 2 equivalent. Intermittent flooding of rice fields reduced annual net emissions to 0.12-0.13 Tg CH 4 -C and 16.66-48.80 Tg CO 2 -C while N 2 O emission increased to 0.05-0.06 Tg N 2 O-N. The GWP, however, reduced to 91.73-211.80 Tg CO 2 equivalent. The study suggested that the model could be applied for estimating the GHG emissions and the influences of agronomic management, soil and climatic parameters on the GHG emissions from rice fields in India.

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Methane emission from rice–wheat cropping system in the Indo-Gangetic plain in relation to irrigation, farmyard manure and dicyandiamide application

Cited by 88 publications

References 20 publications

Tillage, residue and nitrogen management effects on methane and nitrous oxide emission from rice–wheat system of Indian Northwest Indo-Gangetic Plains

Tillage, residue and nitrogen management effects on methane and nitrous oxide emission from rice–wheat system of Indian Northwest Indo-Gangetic Plains

Nitrogen-use efficiency and economic efficiency of slow-release N fertilisers applied to irrigated turfs in a Mediterranean environment

Greenhouse gas emissions from Indian rice fields: calibration and upscaling using the DNDC model

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