scholarly journals Effects Of Organic Amendmentson Methane Emission And Yield Of Rice

2015 ◽  
Vol 41 (2) ◽  
pp. 263-270
Author(s):  
M Jahangir Alam ◽  
MH Kabir Shiragi ◽  
M Aslam Ali ◽  
MA Farukh ◽  
Abdullahil Baque

The effect of FYM, poultry litter, livestock manure, biogas slurry, vermi-compost and municipal solid waste (MSW) combined with NPK.was assessed on emission of CH4 and yield of rice. The highest amount of CH4 emission (815.04) kg ha-1 season'1 was from MSW followed by (702.96 kg CH4 ha'1 season'1) from livestock manure. The lowest (365.14 kg CH4 ha'1 season'1) was produced in control treatment. The increasing trend of seasonal CH4 emission was 55.20, 48.06, 35.71, 33.88, 21.13 and 17.57% respectively due to organic amenments against the control. The highest number of panicle hill'1 (14.38), grain panicle'1 (160.67), yield of grain (5.47tha'1) and straw weight (4.56 t ha'1) was observed due to application of FYM, vermicompost and poultry litter respectively. The highest percentage of harvest index and ripened grains (55.363 and 93.41) was found in biogas slurry and poultry litter treated plots and the lowest percentage (52.878 and 85.88) was with vermicompost and biogas slurry correspondingly. The highest Eh value (- 252.0 mV) was found in MSW and the lowest value was observed in poultry litter. Result suggests that combined use of inorganic fertilizer and organic amendments caused highest yield of rice with less CH4 emission. Asiat. Soc. Bangladesh, Sci. 41(2): 263-270, December 2015

2019 ◽  
Vol 54 (2) ◽  
pp. 177-186
Author(s):  
MN Mondol ◽  
KA Hussain ◽  
MR Zubaer ◽  
MA Hossain ◽  
AS Chamon

Pot experiments were conducted at the department of Soil, Water and Environment, University of Dhaka to evaluate the effect of used tea leaves and poultry litter in ameliorating lead uptake and to alleviate toxicity of lead in Red amaranth (Amaranthus tricolor L.). The length, fresh weight and dry weight of shoot was decreased significantly by 34.83, 34.69 and 36.48%, respectively, in 200 mg kg-1 Pb treated pots compared to the control. The similar significant decreasing trend in case of macro nutrient concentration in shoot and root samples were also observed. %N, P, K, S, Mg and Ca concentration in edible parts (shoots) decreased by 66.3, 5.27, 52.17, 30.32, 61.54 and 62.87% in 200 mg kg1 lead (Pb) treated pots compared to the control. On the other hand Pb concentration in shoot and root was the highest at 200 mg kg-1Pb treated pots (55 and 189 mg kg-1 pot-1) and the lowest was in the control treatment (0.45 and 20 mg kg-1 pot-1). Biomass production were positively influenced by the application of organic amendments as well as lead uptake was significantly ameliorated into Red amaranth shoot and root due to application of used tea leaves and poultry litter which reduced soil to plant transfer (TrF) of Pb by 47.39, 56.34 and 16.67, 22.22% in shoots and roots of red amaranth, respectively, compared to the untreated pots. Bangladesh J. Sci. Ind. Res.54(2), 177-186, 2019


Plants ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1516
Author(s):  
Aown Abbas ◽  
Muhammad Naveed ◽  
Muhammad Azeem ◽  
Muhammad Yaseen ◽  
Rehmat Ullah ◽  
...  

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.


Agronomy ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 2409
Author(s):  
Hamed Alarefee ◽  
Che Fauziah Ishak ◽  
Daljit Singh Karam ◽  
Radziah Othman

Efficient use of co-composted organic manure with biochar is one of the sustainable management practices in an agriculture system to increase soil fertility and crop yield. The objectives of this research are to evaluate the use of co-composted biochar, biochar in formulation with poultry litter (PL), and PL compost on soil properties and maize growth. Organic amendments were applied at 10 Mg ha−1, and synthetic fertilizer was applied at the recommended rate of maize (N: P2O5: K2O at 60:60:40 kg ha−1). The results showed that addition of organic amendment significantly increased the total biomass parameter compared to the control, which ranged from 23.2% to 988.5%. The pure biochar treatment yielded lower biomass than the control by 27.1%, which was attributed to its low nutrient content. Consequently, the application of the co-composted biochar achieved higher plant height and aerial portion, which ranged from 46.86% to 25.74% and 7.8% to 108.2%, respectively, in comparison to the recommended fertilizer rate. In addition, the soil amended with co-composted biochar had a significant increase in soil organic matter and had significantly higher chlorophyll and nutrient concentrations in plants, which increased with an increase in the biochar ratio of the co-composts. This was probably attributed to the release of the nutrients retained during composting, thereby possibly making the co-composted biochar act as a slow-release fertilizer. In conclusion, the addition of organic manure with biochar enhanced the nutrient supply by gradual release in comparison to the mineral fertilizer.


2011 ◽  
Vol 10 (7) ◽  
pp. 640-646 ◽  
Author(s):  
Muhammad Aslam ◽  
Muhammad Ayyaz Khan ◽  
Inayat Ullah Awan ◽  
Ejaz Ahmad Khan ◽  
Ahmad Ali Khan ◽  
...  

2011 ◽  
Vol 103 (4) ◽  
pp. 1284-1291 ◽  
Author(s):  
Paula L. Wild ◽  
Chris van Kessel ◽  
Jessica Lundberg ◽  
Bruce A. Linquist

2016 ◽  
Vol 37 (4Supl1) ◽  
pp. 2609 ◽  
Author(s):  
Vania Luzia Fournou de Lima ◽  
Carlos Ducatti ◽  
Paulo Roberto de Lima Meirelles ◽  
Luciane Do Carmo Seraphim ◽  
Marco Aurélio Factori ◽  
...  

This study aimed to evaluate and quantify the methodology of stable isotopes, 15N values for the organic fertilizer (chicken manure) and inorganic (urea). In addition to evaluating the incorporation rate, chemical half-life and analysis thereof, for possible traceability through the pasture fertilized with different sources of N. The technique of employment with use of tracer stable isotope 15N possible to estimate the changes in the N soil, even in the face of the various changes that take place concurrently. The methodology determines the path of both N isotopes (15N and 14N), providing information about the system and estimating N transformation rates The experimental work was conducted at the Faculty of Veterinary Medicine and Animal Science, UNESP Botucatu. An area of 576m2 was used for the parcels, which were divided between the 3 treatments with 4 repetitions each: T1 - control treatment without fertilization; T2 - fertilization with urea and T3 - organic fertilizer with poultry litter. The grass was cut every 15 days, three months after fertilization, for a total of four periods of grazing exclusion. Experimental samples were analyzed for the isotopic nitrogen and crude protein, neutral detergent fiber, acid detergent fiber, cellulose, hemicellulose and lignin composition. Degradation of poultry litter, the sand bag method was analyzed by linear regression. (delta-N-15) forage, fodder percentage of nitrogen, percentage of total nitrogen sheet, (delta-N-15) on the sheet, and (delta-N-15) at the helm were different between treatments. To this end collection, difference was observed for% Total Nitrogen, % Total N in sheet, % Total N in the trunk and% Total N at the helm. The crude protein analysis revealed significant differences between treatments, while the crude protein and lignin differ according to time after fertilization. The technique of N stable isotope effectively distinguish the composition of organic and inorganic fertilizers in deferred grazing pastures of Urochloa brizantha cv. Marandu. Forage quality was not influenced by the source of N.


2020 ◽  
Author(s):  
Mehdi Rashtbari ◽  
Ali Akbar Safari Sinegani

<p>Annually, millions of tons of antibiotics in the world are used in medicine, veterinary and agriculture, and their excessive application have negative impacts on soil microorganisms and biological processes. In the present study, the effect of releasing the mostly used antibiotic in veterinary and ameliorative impact of organic and non-organic amendments was studied in which treatments include (control (without antibiotic), gentamicin, oxytetracycline and penicillin) and different concentrations (50, 100 and 200 mg/kg dry soil) with and without organic and mineral conditioners (cow manure, biochar and nano-zeolite) on soil urease (URE) and alkaline phosphatase (ALP) enzyme activity and their resistance and resilience indices at three time periods including 1-7, 7-30 and 30-90 days during a 90-day incubation time in a split-factorial design which soil conditioners were considered as the main plots and antibiotic types and concentration were as experimental factors. Resistance (RS) and resilience (RL) indices were calculated for enzymes activity. Results showed that in control treatment (without conditioner), application of gentamicin at 200 mg/kg caused a 68.9 percent decrease in soil ALP activity compared to control (without antibiotic), while a decrease in ALP activity in tetracycline-treated soils compared to control (without conditioner), manure, biochar, and nano-zeolite was 17.5, 13.8, 17.5 and 16 percent, respectively. URE enzyme activity at 30-90-days during incubation the period had an increasing trend from 1-7 days and the highest enzyme activity was measured on the 90<sup>th</sup> day of incubation. According to results, soil enzymes responded differently to antibiotics and conditioners in soil, so that penicillin and oxytetracycline had no considerable negative impact on ALP enzyme activity, while gentamicin and oxytetracycline at all applied concentrations significantly decreased URE activity. To sum up, findings showed that application of soil conditioners could alleviate negative impacts of antibiotics in soil and could improve resistance and resilience indexes of soil enzymes activities in soil.</p>


2016 ◽  
Vol 44 (2) ◽  
Author(s):  
H. P. Maheswarappa, V. Krishnakumar, ◽  
Alka Gupta, A. Geetha Kumari

<p>Performance of vanilla, as influenced by organic source of nutrition when grown as intercrop in coconut garden, was studied in sandy loam soil at ICAR-CPCRI, Kasaragod, Kerala for seven years. Field experiments were carried out with different sources of organic manures, recommended NPK fertilizer and no fertilizer treatments. Application of cow dung slurry (6 tonnes ha<sup>-1</sup>) resulted in vigorous growth of vine (vine length of 5.5 m) and higher number of beans per vine (208) and a significantly higher mean fresh yield of bean (1.87 kg vine<sup>-1</sup>). Application of vermicompost (5 kg plant<sup>-1</sup>) + biofertilizers (<em>Bacillus</em> and <em>Azospirillum</em>) and vermiwash were on par and recorded mean fresh yield of 1.47 kg vine<sup>-1</sup> and 1.30 kg vine<sup>-1</sup>, respectively. Control treatment without fertilizer application recorded significantly lower fresh bean yield (0.55 kg vine<sup>-1</sup>) due to lower number of beans per vine (72 nos.).  In the rhizosphere of vanilla, no significant difference for either bacterial or actinomycetes population was noticed among the treatments. The fungal population differed significantly among the treatments and the highest population level was found with application of biogas slurry (62.1x10<sup>3</sup>cfu g<sup>-1</sup> soil), which was on par with application of cow dung slurry (59x10<sup>3</sup> cfu g<sup>-1</sup> soil). Among the function specific microbial communities, the highest population of  P-solubilisers (98x10<sup>3</sup> cfu g<sup>-1</sup> soil) was recorded in the biogas slurry treatment, and it was the lowest in control and vermiwash application treatments. The average coconut yield realized during experimental period(2004-05 to 2009-10) was 136 nuts per palm, recording 53 per cent increase in yield compared to pre-experimental yield (89 nuts per palm). </p>


2013 ◽  
Vol 6 (1) ◽  
pp. 1 ◽  
Author(s):  
Prihasto Setyanto ◽  
Rosenani Abu Bakar

The concentration of methane (CH4) in the atmosphere is increasing at 1% per annum and rice fields are one of the sources that contribute to about 10-15% of the atmospheric CH4. One of the options to reduce greenhouse gas emission from rice fields is probably through water management. A field study was conducted to investigate the effects of water management practices on CH4 emission from rice field plots on a silty sand Aeric Tropaquept soil at Research Station for Agricultural Environment Preservation, Jakenan, Central Java, Indonesia, during the dry season of March to June 2002. Four water regimes tested were: (1) 5 cm continuous flooding (CF), (2) 0-1 cm continuous flooding (ST), (3) intermittent irrigation (IR) where plots received continuously 5 cm of flooding with two times of draining at 15-20 and 25-30 days after transplanting (DAT), and (4) pulse irrigation (PI) where plots were watered until 5 cm level and left to dry by itself until the water table reached 30 cm beneath soil surface then watered again. The total CH4 emissions of the four water treatments were 254, 185, 136 and 96 kg CH4 ha-1 for CF, ST, IR and PI, respectively. Methane emission increased during the early growing season, which coincided with the low redox potential of -100 to -150 mV in all treatments. Dry matter weight of straw and filled grain among the water treatments did not show significant differences. Likewise, total grain yield at 14% moisture content was not significantly different among treatments. However, this result should be carefully interpreted because the rice plants in all water treatments were infested by stem borer, which reduced the total grain yield of IR64 between 11% and 16%. This study suggests that intermittent and pulse irrigation practices will be important not only for water use efficiency, but also for CH4 emission reduction.


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