Organic substitution in fertilizer schedule: Impacts on soil health, photosynthetic efficiency, yield and assimilation in wheat grown in alluvial soil

Saikia, Prasanta Kumar; Bhattacharya, Suvendu; Baruah, K. K.

doi:10.1016/j.agee.2015.02.003

Cited by 63 publications

(42 citation statements)

References 38 publications

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“…Mozumder and Barrens (2007) opined that excessive use of chemical fertilizers should impose adverse effects on the soil biodiversity which can invariably harm its functioning. Consequently, optimization of chemical fertilization with organic substitution is a better and safer proposition to sustain soil health (Saikia et al, 2015). Lima et al, (2009) advocated that long-term application of farmyard manure enriches SOM with carbohydrates as well as lignin and lignin-like products.…”

Section: Carbon Dynamicsmentioning

confidence: 99%

Effect of Organic Inputs on Strength and Stability of Soil Aggregates Associated Organic Carbon Concentration under Rice-Wheat Rotation in Indo-Gangetic Plain Zone of India

Naresh¹,

Panwar²,

Dhaliwal³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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Section: Carbon Dynamicsmentioning

confidence: 99%

Effect of Organic Inputs on Strength and Stability of Soil Aggregates Associated Organic Carbon Concentration under Rice-Wheat Rotation in Indo-Gangetic Plain Zone of India

Naresh¹,

Panwar²,

Dhaliwal³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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“…Esto mismo ocurre en otras plantas, donde la fertilización orgánica aumentó el número de flores (SAIKIA et al, 2015). Sin embargo, no ocurrió lo mismo con el número de flores por panícula, donde todos los tratamientos presentaron valores similares (Figura 2).…”

Section: Discussionunclassified

Mejoramiento Del Rendimiento Y Calidad De Fruto Y Pseudofruto De Marañon Con Un Ciclo De Fertilización Orgánica

et al. 2017

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RESUMEN El objetivo del presente estudio fue evaluar la influencia de la aplicación de fertilizantes orgánicos a árboles adultos de marañón por un ciclo productivo sobre la producción y calidad de frutos y pseudofrutos. Para lo anterior, se establecieron tres tratamientos: fertilización orgánica (BIO), fertilización sintética (FS) y sin fertilización (SF). Se cuantificó el número de panículas m-3, número de flores por panícula y el número de frutos m-3 en los árboles. Después del corte, a frutos y pseudofrutos se analizaron propiedades físicoquímicas de interés. Aunque el tratamiento FS promovió mayor número de panículas por unidad de área foliar (P < 0.05) sobre los otros tratamientos, el rendimiento fue igual (P > 0.05), medido como la cantidad de fruto-pseudofruto m-3 con el tratamiento BIO. Sin embargo, la cantidad de fruto (principal producto comercializado) fue mayor en BIO (1.80 kg árbol-1) comparado con los otros dos tratamientos (FS = 1.35; SF = 1.09). El tratamiento BIO aumentó en 81% el contenido de polifenoles respecto al tratamiento no fertilizado. Igualmente, los contenidos de grasa y acidez titulable fueron superiores en BIO, respecto a los tratamientos sin fertilización y con fertilización sintética (P < 0.05). Se demostró que la aplicación de biofertilizantes por un ciclo de producción aumenta la producción de frutos y modifica la composición química de las semillas.

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“…Flag leaf photosynthesis revealed a good correlation with root biomass of the varieties. Increased uptake of atmospheric carbon by the cultivar Swarnamahsuri accompanied by higher root biomass may be the reason for higher soil organic carbon in Swarnamahsuri planted field by following a mechanism of carbon release from the roots to the soil reported by Kuzyakov and Gavrichkova, 2010;Saikia et al, 2015. The enhanced photosynthetic rate has resulted in profuse vegetative growth and is the cause of higher dry matter partitioning to the root and the shoot of the cultivars.…”

Section: Discussionmentioning

confidence: 99%

“…As plant biomass is largely derived from photosynthetically captured carbon, variation in the efficiency or capacity of photosynthesis can lead to variation in growth rate and productivity. Plant roots play a dominant role in the soil C cycle and greatly influence the SOC stock than the above ground biomass (Puget and Drinkwater, 2001) through root exudates, mucilages, sloughed off root cap cells and senescence of older roots contributing to rhizodeposition in the soil (Saikia et al, 2015). Productivity of crop plants depends on the efficiency of photosynthesis, translocation of assimilates and formation of active sinks, where leaf canopy plays a determining role influencing source-sink relations (Iqbal et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Changes in organic carbon pool in a tropical soil planted to rice in relation to photosynthetic carbon fixation

Bharali¹,

Baruah²,

Gogoi³

2016

Aust J Crop Sci

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Information on the fate of photosynthesized carbon (C) in plant soil system is essential for understanding the soil organic carbon pool and carbon dynamics in agricultural ecosystem. Our objectives in the present study were to quantify the photosynthetic carbon fixation by high yielding rice genotypes and contribution of rice ecosystem to soil organic carbon pool in a tropical rice soil. A field experiment was conducted during 3 consecutive monsoon rice season (July -December) of 2012, 2013 and 2014 in a randomized block design (RBD). A portable photosynthesis system was used for measurement of flag leaf photosynthesis. Stomatal frequency of the flag leaves were studied by scanning electron microscopy (SEM). Soil organic carbon storage was estimated by a total organic carbon (TOC) analyzer. Differences in flag leaf photosynthetic carbon fixation amongst the varieties were significant. Differential ability for carbon partitioning in terms of biomass accumulation were also noteworthy (p = 0.000). Flag leaf photosynthetic rate observed in the study showed a good correlation (r = 0.486, p ≤ 0.05) with the stomatal frequency of the flag leaves. The leaf stomatal frequency ranged from 605 to 783 mm -2 of leaf area with a high in the rice variety, Swarnamahsuri and low in Gitesh. There were significant differences in cumulative methane (CH 4 ) emission amongst the four rice varieties. The grain productivity in retaliation to genetic differences of the rice varieties highly favored their correlations with flag leaf photosynthesis (r = 0.999, p ≤ 0.01) and leaf area index (r = 0.961, p ≤ 0.01). Above ground and below ground dry matter of the plants were found to influence the quantity of soil organic carbon and soil C storage. Our results also clearly bespoke that a rice ecosystem can effectively sequester carbon (0.338 Mg C ha -1 yr -1 ) at 0 -15cm depth of soil. The results led us to conclude that lowland rice ecosystem is a good sink of carbon dioxide (CO 2 ).

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Organic substitution in fertilizer schedule: Impacts on soil health, photosynthetic efficiency, yield and assimilation in wheat grown in alluvial soil

Cited by 63 publications

References 38 publications

Effect of Organic Inputs on Strength and Stability of Soil Aggregates Associated Organic Carbon Concentration under Rice-Wheat Rotation in Indo-Gangetic Plain Zone of India

Effect of Organic Inputs on Strength and Stability of Soil Aggregates Associated Organic Carbon Concentration under Rice-Wheat Rotation in Indo-Gangetic Plain Zone of India

Mejoramiento Del Rendimiento Y Calidad De Fruto Y Pseudofruto De Marañon Con Un Ciclo De Fertilización Orgánica

Changes in organic carbon pool in a tropical soil planted to rice in relation to photosynthetic carbon fixation

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