Decomposition of paddy straw in soil and the effect of straw incorporation in the field on the yield of wheat

Singh, Samunder; Batra, Renu; Mishra, M.M.; Kapoor, K. K.; Goyal, Sneh

doi:10.1002/jpln.19921550411

Cited by 18 publications

(12 citation statements)

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“…Though some of the organic wastes are being composted for organic manures, others have the potentials for direct application to soils or in combination with mineral fertilizers [74] viz. crop residues/straw [101], green manures/green leaf manures, mulching [71,95]. Applications of these materials to soils not only improve soil quality and productivity but also reduce the land requirement for disposal of these wastes.…”

Section: Introductionmentioning

confidence: 99%

How Important is the Quality of Organic Amendments in Relation to Mineral N Availability in Soils?

et al. 2013

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Summary Wastes generated from municipal and agricultural activities have the tremendous potential for application in agriculture as a source of nutrients and as amendments to improve soil organic matter (SOM). A decline in SOM can represent a serious threat to soil fertility and quality. Nitrogen (N) mineralization from organic amendments is important for understanding the N dynamics in terrestrial ecosystems. In this review, quality of the amendments such as C/N ration, N content, and biochemical compositions, etc. are discussed. Since, C/N ratio cannot explain all differences in N mineralization; emphasis has been laid on characterizing different compounds in organic amendments that govern the mineralization process. The importance of simulation models has also been described in modeling N mineralization from some complex materials like compost, animal manures and farmyard manures. These complex simulation models once modified according to the quality of the organic amendments can simulate N mineralization and thus, they can be used for simulating N dynamics in terrestrial eco-systems.

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Section: Introductionmentioning

confidence: 99%

How Important is the Quality of Organic Amendments in Relation to Mineral N Availability in Soils?

et al. 2013

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“…3.9 e,h and i). (Singh et al, 1992) From the experimental data, addition of rice straw immobilised N by 10 th day of straw decomposition and the immobilisation of N continued till the end of the incubation period (90 days) (Fig. 3.10).…”

Section: Comparing Simulations Of N Mineralised From High C/n Ratio Mmentioning

confidence: 90%

“…mg N kg -1 soil). The symbol denotes observed data (Singh et al 1992). The continuous line is the output from the model.…”

Section: List Ofmentioning

confidence: 99%

“…Few examples were found. We used the data from Blackmer and Green (1995), Singh et al (1992) and Sammi Reddy et al (2008) to evaluate the performance of the model. Some characteristics of the soil and residues used in these studies, together with experimental details (rate of application, incubation temperature etc.)…”

Section: Published Datasetsmentioning

confidence: 99%

“…The ability of the model to simulate N mineralised from other high C/N ratio materials was tested against datasets on maize straw , rice straw (Singh et al, 1992) and wheat straw (Sammi Reddy et al, 2008). The simulations of N mineralised from these organic materials are presented in Figs.…”

Section: Comparing Simulations Of N Mineralised From High C/n Ratio Mmentioning

confidence: 99%

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Simulation of nitrogen release from organic materials in the soybean/wheat cropping systems on Vertisols in central India

Mohanty¹

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The soybean (Glycine max L.)-wheat (Triticum aestivum, L.) cropping system is the dominant cropping system on Vertisols of Madhya Pradesh in central India, but the yield of soybean has been decreased significantly over recent years due to biotic and abiotic factors. The yield of wheat following soybean in this region is also governed by the availability of irrigation water. So managing this cropping system in terms of nutrient and water in Vertisols is important for soybean and wheat production. The proposed research work was undertaken to analyze N release from different organic materials like rice (Oryza sativa, L.) and wheat straw, green manure (like Gliricidia) and farmyard manure (FYM), modeling N release using APSIM (Agricultural Production System Simulator). The APSIM model has been calibrated for first time for Indian FYM, and also tested for the soybeanwheat cropping system permitting prediction of N release from organic amendments varying in C/N ratios and biochemical properties.A laboratory incubation experiment was carried out for 98 days at 30º C under aerobic conditions to study the effects of rice and wheat straw applied at 5 and 10 g kg -1 to a Vertisol soil in the presence or absence of additional N (as urea). The study showed an interactive effect between the rate of application of the residues and additional mineral N.Without additional N, the mineral N in soil was completely immobilised within two weeks, irrespective of the rate of application; initial net immobilisation was limited by the availability of N and was independent of residue rate. When additional N was supplied, initial net immobilisation was dependent on the rate of application of the residue.We used the APSIM SoilN module to simulate N mineralisation from high C/N ratio crop residues, and compared the predictions with the observed data from our incubation study and other published data sets. Model performance was generally satisfactory with a modelling efficiency of 0.82. The major discrepancy between the modelled and the observed data was a tendency for the model to underestimate the initial rate of immobilisation. iii the model based on the FYM composition. Water soluble C and N components were used to specify the conceptual pool FPOOL1 and the measured lignin content to specify the C content of FPOOL3. Using these values and an iterative approach to identifying an Application of

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Alternative Uses of Crop Stubble

Kumar

Joshi

2014

SpringerBriefs in Environmental Science

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Keeping in view the increasing problems associated with crop stubble burning in the state of Punjab, several initiatives for its proper management have been taken up. Various departments and institutions of the Punjab government are promoting alternative uses of straw instead of burning. This chapter outlines some of these alternative uses such as: use of rice residue as fodder; use of rice residue in bio-thermal power plants; its use for mushroom cultivation, for bedding material for cattle; its use for production of bio-oil; paper production; bio-gas and in situ. Other uses include incorporation of paddy straw in soil, energy technologies and thermal combustion. Keywords Alternate uses of rice residue • End use of paddy straw • Residue use as fodder • Residue use in bio-thermal • In-situ incorporation Chapter 4

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Decomposition of paddy straw in soil and the effect of straw incorporation in the field on the yield of wheat

Cited by 18 publications

References 11 publications

How Important is the Quality of Organic Amendments in Relation to Mineral N Availability in Soils?

How Important is the Quality of Organic Amendments in Relation to Mineral N Availability in Soils?

Simulation of nitrogen release from organic materials in the soybean/wheat cropping systems on Vertisols in central India

Alternative Uses of Crop Stubble

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