Impact of methane-utilizing bacteria on rice yield, inorganic fertilizers efficiency and methane emissions

Reliance on inorganic fertilizers with less or no use of organic fertilizers has impaired the productivity of soils worldwide. Therefore, the present study was conducted to quantify the effects of integrated nutrient management on rice yield, nutrient use efficiency, soil fertility, and carbon (C) sequestration in cultivated land. The experiment was designed with seven treatments comprising of a zero input control, recommended inorganic fertilizers (RD), poultry manure (PM) (5 t ha−1) + 50% RD, PM (2.5 t ha−1) + 75% RD, vermicompost (VC) (5 t ha−1) + 50% RD, VC (2.5 t ha−1) + 75% RD, and farmers’ practice (FP) with three replications that were laid out in a randomized complete block design. The highest grain yield (6.16–6.27 t ha−1) was attained when VC and PM were applied at the rate of 2.5 t ha−1 along with 75% RD. Uptake of nutrients and their subsequent use efficiencies appeared higher and satisfactory from the combined application of organic and inorganic fertilizers. The addition of organic fertilizer significantly influenced the organic carbon, total carbon, total nitrogen, ammonium nitrogen, nitrate nitrogen, soil pH, phosphorus, potassium, sulfur, calcium, and magnesium contents in post-harvest soil, which indicated enhancement of soil fertility. The maximum value of the organic carbon stock (18.70 t ha−1), total carbon stock (20.81 t ha−1), and organic carbon sequestration (1.75 t ha−1) was observed in poultry manure at the rate of 5 t ha−1 with 50% RD. The soil bulk density decreased slightly more than that of the control, which indicated the improvement of the physical properties of soil using organic manures. Therefore, regular nourishment of soil with organic and inorganic fertilizers might help rejuvenate the soils and ensure agricultural sustainability.

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Methane Emissions and Rice Yield in Rainfed Bed System (Surjan) as Affected by Manure and Zeolite Treatment

Planta Tropika Journal of Agro Science ◽

10.18196/pt.2019.105.141-146 ◽

2019 ◽

Vol 7 (2) ◽

Author(s):

Anggri Hervani ◽

Helena Lina Susilawati ◽

Anicetus Wihardjaka

Keyword(s):

Rice Yield ◽

Methane Emissions

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Responses of methane emissions and rice yield to applications of biochar and straw in a paddy field

Journal of Soils and Sediments ◽

10.1007/s11368-013-0732-0 ◽

2013 ◽

Vol 13 (8) ◽

pp. 1450-1460 ◽

Cited By ~ 82

Author(s):

Da Dong ◽

Min Yang ◽

Cheng Wang ◽

Hailong Wang ◽

Yi Li ◽

...

Keyword(s):

Paddy Field ◽

Rice Yield ◽

Methane Emissions

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Long Term Effects of Organic and Inorganic Fertilizers on Rice under Rice-Wheat Cropping Sequence

Nepal Journal of Science and Technology ◽

10.3126/njst.v9i0.3156 ◽

1970 ◽

Vol 9 ◽

pp. 7-13 ◽

Cited By ~ 2

Author(s):

Yagya Gajadhar Khadka ◽

Suresh Kumar Rai ◽

Sambhu Raut

Keyword(s):

Organic Carbon ◽

Grain Yield ◽

Rice Yield ◽

Alluvial Soil ◽

Available Phosphorus ◽

Inorganic Fertilizers ◽

Cropping Sequence ◽

Phosphorus And Potassium ◽

Organic And Inorganic Fertilizers

A long term field experiment was started in 1989 on alluvial soil of Inceptisol at Agronomy Research Farm, Khumaltar, Lalitpur to evaluate the effects of organic and inorganic fertilizers on soil properties and yields of rice under ricewheat cropping sequence. Rice yield was monitored from 1998 to 2003. Chianung-242 rice variety was used as a test crop for all of the five years of experimentation. All the treatments manifested significant increase in rice yield over control. Results showed highest significant grain yield of 7.9 tons ha-1 from the sole application of farmyard manure (FYM) @ 10 tons ha-1. The long-term experiment exhibited that the balanced application of chemical fertilizers alone did not sustain soil productivity under continuous cropping system. Application of 100 kg N ha-1 alone produced the yield up to 7.2 tons ha-1 whereas phosphorus and potassium did not affect the yields in most of the years. None of the soil properties, soil pH, organic carbon, total nitrogen, available phosphorus and potassium were affected by application of balanced fertilizers while with the application of 10 tons FYM ha-1, the total nitrogen, available phosphorus and organic carbon contents in the soil were improved as compared to other treatments. The efficiency of fertilizers and manure was influenced by the amount of rainfall received as reflected by the higher grain yield during the higher rainfall years. Key words: rice, alluvial soil, organic manure, inorganic fertilizers, rice-wheat system DOI: 10.3126/njst.v9i0.3156 Nepal Journal of Science and Technology 9 (2008) 7-13

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Effects of Straw Incorporation Time on Rice Yield and Methane Emissions from Sandy Loam Paddy Fields

Journal of the Faculty of Agriculture, Kyushu University ◽

10.5109/2339106 ◽

2019 ◽

Vol 64 (2) ◽

pp. 213-218

Author(s):

Deogratius LUYIMA ◽

Hyun–Cheol JEONG ◽

Jae–Han LEE ◽

Su–Hun KIM ◽

Yoshiyuki SHINOGI ◽

...

Keyword(s):

Rice Yield ◽

Sandy Loam ◽

Methane Emissions ◽

Paddy Fields ◽

Straw Incorporation

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Substitution of inorganic fertilizers by organic manures and the effect on soil fertility in a rice–wheat rotation on reclaimed sodic soil in India

The Journal of Agricultural Science ◽

10.1017/s0021859603002934 ◽

2003 ◽

Vol 140 (2) ◽

pp. 161-168 ◽

Cited By ~ 30

Author(s):

N. P. S. YADUVANSHI

Keyword(s):

Soil Fertility ◽

Green Manure ◽

Rice Yield ◽

Farmyard Manure ◽

Residual Effect ◽

Inorganic Fertilizer ◽

Npk Fertilizers ◽

Inorganic Fertilizers ◽

Organic C ◽

Organic Manures

A field experiment was initiated at the Central Soil Salinity Research Institute, Karnal, India between 1994 and 1998 involving use of NPK fertilizers alone and in combination with green manure (Sesbania bispinosa) or farmyard manure (FYM) in a rice–wheat cropping sequence. An attempt was made to evaluate the effect of the substitution of inorganic fertilizers with organic manures on yields of grain and nutrients, economy and soil fertility during 1997–98 and 1998–99. Application of NPK and its combination with green manuring and FYM increased the rice yield significantly. Applying inorganic fertilizers resulted in similar nitrogen use efficiency (NUE) in rice as compared with organic manures along with inorganic fertilizers, but NUE was increased in wheat by the residual effect of organic manures along with inorganic fertilizers. The responses of rice to the application of the full recommended amount of inorganic fertilizers (120 kg N, 26 kg P and 42 kg K/ha) and its combined use with green manure or 10 t/ha FYM and 150% recommended amount (180 kg N, 39 kg P and 63 kg K/ha) were 2·98, 4·27, 4·10 and 3·54 t/ha, respectively. Further, with green manure or 10 t FYM/ha in combination with 50% recommended amount, the mean rice yield (5·8 t/ha) was similar to the yield (5·5 t/ha) obtained from the 100% NPK recommended treatment. Application of green manure or 10 t FYM/ha thus saved 60 kg N and 13 kg P/ha inorganic fertilizer in rice. The residual effect of green manure or FYM plus the full recommended fertilizer amount (120 kg N, 26 kg P and 42 kg K/ha) was significantly greater than that of the full recommended amount of fertilizer. Addition of green manure or FYM resulted in higher removal in crops, increase of soil N, P, K and organic C, and reduced soil pH. Application of the full recommended amount of fertilizer only maintained the N, P and K status in soil. Higher profit was obtained when inorganic fertilizer was combined with organic manures.

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