Impact of integrated nutrient management options on GHG emission, N loss and N use efficiency of low land rice

Mohanty, S.; Nayak, A. K.; Swain, Chinmaya Kumar; Dhal, Biswaranjan; Kumar, Anjani; Kumar, Upendra; Tripathi, Rahul; Shahid, Mohammad; Behera, Kambaska Kumar

doi:10.1016/j.still.2020.104616

Cited by 51 publications

(18 citation statements)

References 62 publications

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“…The reduction of CO 2 and N 2 O emissions after the application of organic material was also highlighted in other studies with other amendments, such as crop residues [35,80] or manure [85]. Amendments with high C:N ratio like straw (up to 100:1) resulted in low N 2 O emission and is also an option to replenish soil organic matter [80] but may hamper the N nutrition of crops [86].…”

Section: Mitigation Of Ghg Emissions By Compost Applicationmentioning

confidence: 67%

Combination of Compost and Mineral Fertilizers as an Option for Enhancing Maize (Zea mays L.) Yields and Mitigating Greenhouse Gas Emissions from a Nitisol in Ethiopia

et al. 2021

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Combined application of organic and mineral fertilizers has been proposed as a measure for sustainable yield intensification and mitigation of greenhouse gas (GHG) emissions. However, fertilizer effects strongly depend on the soil type and still no precise information is available for Nitisols in Ethiopia. The study evaluated effects of different ratios of biowaste compost and mineral fertilizers (consisting of nitrogen (N), phosphorus (P), and sulphur (S)) on maize (Zea mays L. Bako-hybrid) yields in a two-year field trial. Soil samples from each treatment of the field trial were used to estimate emissions of nitrous oxide (N2O), carbon dioxide (CO2), methane (CH4), and microbial activity in a 28-day incubation experiment with two moisture levels (40% and 75% water-filled pore space, WFPS). The application of fertilizers corresponded to a N supply of about 100 kg ha−1, whereby the pure application of mineral fertilizers (100 min) was gradually replaced by compost. Maize yields were increased by 12 to 18% (p < 0.05) in the combined treatments of compost and mineral fertilizers compared to the 100 min treatment. The cumulative emissions of N2O and CO2 but not CH4 were affected by the fertilizer treatments and soil moisture levels (p < 0.05). At 75% WFPS, the N2O emissions in the 100 min treatment was with 16.3 g ha−1 more than twice as high as the treatment with 100% compost (6.4 g ha−1) and also considerably higher than in the 50% compost treatment (9.4 g ha−1). The results suggest that a compost application accounting for 40 to 70% of the N supply in the fertilizer combinations can be suitable to increase maize yields as well as to mitigate GHG emissions from Nitisols in Southwestern Ethiopia.

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Section: Mitigation Of Ghg Emissions By Compost Applicationmentioning

confidence: 67%

Combination of Compost and Mineral Fertilizers as an Option for Enhancing Maize (Zea mays L.) Yields and Mitigating Greenhouse Gas Emissions from a Nitisol in Ethiopia

et al. 2021

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“…Nutrient depletion from soils accelerated by nutrient mining, imbalanced use of fertilizers and poor land management practices pose serious threats to food security [1,2]. Poor nutrient use efficiency (NUE) of crops causes a significant decline in soil quality and crop yields in developing countries [3,4]. Inorganic fertilizers significantly boost crop yield, and their application has steadily increased due to per capita land shrinking and deterioration in soil quality [5].…”

Section: Introductionmentioning

confidence: 99%

Efficiency of Wheat Straw Biochar in Combination with Compost and Biogas Slurry for Enhancing Nutritional Status and Productivity of Soil and Plant

Abbas

Naveed

Azeem

et al. 2020

Plants

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In the present study, we investigated the impact of different combinations of wheat straw biochar, compost and biogas slurry on maize growth, physiology, and nutritional status in less productive soils. The experiment was performed as a completely randomized block design in a greenhouse pot experiment. The compost and biogas slurry were applied with and without biochar. The results revealed that a combination of biochar, compost, and biogas slurry enhanced the cation exchange capacity (31%), carbon (83%), phosphorus (67%) and potassium (81%) contents in the soil. Likewise, a significant increase in soil microbial biomass carbon (15%) and nitrogen (37%) was noticed with the combined use of all organic amendments. Moreover, the combined application of biochar, compost and biogas slurry enhanced soil urease and β-glucosidase activity up to 96% and 67% over control respectively. In addition, plant height, chlorophyll content, water use efficiency and 1000-grain weight were also enhanced up to 54%, 90%, 53% and 21% respectively, with the combined use of all amendments. Here, biochar addition helped to reduce the nutrient losses of compost and biogas slurry as well. It is concluded that biochar application in combination with compost and biogas slurry could be a more sustainable, environment-friendly and cost-effective approach, particularly for less fertile soils.

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“…The decrease in the available soil K under continuous flooding is mainly attributed to K uptake by rice plants and losses by leaching. Mohanty et al, (2020) stated that the availability of K decreased with continuous flooding and development of plant growth. Also, Naeem, (2006) proposed that mobilization of non-exchangeable K in flooding rice is root induced through acidification, coupled with K removed from the soil solution by the root uptake.…”

Section: Available Potassium (Ppm)mentioning

confidence: 99%

“…He also reported that adequate application of mineral nitrogen combined with farm yard manure or compost could increase soil organic matter content. Mohanty et al, (2020) reported that the application of organics manure and inorganic fertilizer increased fertility of rice soil.…”

Section: Introductionmentioning

confidence: 99%

Some Nutrients Availability in Rice Soil under Utilization of Organic and Inorganic Fertilizers

M.A.

T.F.

Mohammed

et al. 2021

Alexandria Journal of Agricultural Sciences

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A field experiment was conducted at the Experimental Farm of Sakha Agricultural Research Station; Kafr El-Sheikh, throughout the summer season of 2017 and 2018 to examine the nutrients status in rice soils under the utilization of organic and inorganic fertilizers. Egyptian hybrid rice one (EHR1) variety was used. The experiment was laid out in a split-plot design with four replications, where main plots were assigned to NPK fertilizer treatment and sub-plots were allocated to organic material treatments. The NPK fertilizer's treatments were full dose, 2/3, 1/3 of NPK recommended doses and control (without any mineral fertilizers application). The recommended doses of NPK are 165 kg N ha -1 , 36 kg P2O5 ha -1 and 58 kg K2O ha -1 . The organic material treatments were control (without any organic materials application), rice straw compost, farm yard manure, chopped rice straw and mixture of chopped rice straw and farm yard manure (1:1). The application rate of the organic materials was 7 tons ha -1 for each treatment. The studied characteristics were the available ammonium (ppm), nitrate (ppm), phosphorus (ppm), potassium (ppm), zinc (ppm) as well as grain yield (t ha -1 ). Soil samples were collected at 30, 45 and 60 days after transplanting (DAT) and after rice harvest during the two study seasons. The available nutrients in soil tended to increase as NPK fertilizer levels increased and by the application of organic materials. Available NH4 markedly increased after flooding reached its high peak at 30 DAT and then declined to the minimum values at harvest. The high peak of NO3 was observed at 30 DAT, then started to decline afterward and reached its minimum values at harvest. The highest amount of available K was obtained at 45 DAT and then decreased continuously with crop growth, reaching the lowest values at harvest time. Current data reveal that the maximum available Zn was found at 30 DAT. The application of a full recommended dose of NPK mineral fertilizer combined with compost or farm yard manure and compost alone produced the highest values of grain yield.

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Impact of integrated nutrient management options on GHG emission, N loss and N use efficiency of low land rice

Cited by 51 publications

References 62 publications

Combination of Compost and Mineral Fertilizers as an Option for Enhancing Maize (Zea mays L.) Yields and Mitigating Greenhouse Gas Emissions from a Nitisol in Ethiopia

Combination of Compost and Mineral Fertilizers as an Option for Enhancing Maize (Zea mays L.) Yields and Mitigating Greenhouse Gas Emissions from a Nitisol in Ethiopia

Efficiency of Wheat Straw Biochar in Combination with Compost and Biogas Slurry for Enhancing Nutritional Status and Productivity of Soil and Plant

Some Nutrients Availability in Rice Soil under Utilization of Organic and Inorganic Fertilizers

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