scholarly journals Influence of Different Organic Waste Materials on the Transformation of Nitrogen in Soils

2001 ◽  
Vol 1 ◽  
pp. 658-663 ◽  
Author(s):  
D.K. Das ◽  
A.M. Puste
Keyword(s):  
Organic Matter ◽  
Wheat Straw ◽  
Organic Waste ◽  
Crop Residues ◽  
Crop Productivity ◽  
Climatic Conditions ◽  
Waste Materials ◽  
Cow Dung ◽  
Rural And Urban ◽  
Potato Skin

Organic waste materials like crop residues, well-decomposed cow dung, composts, and other rural and urban wastes are considered highly useful resources in enhancing soil fertility and also in build-up of soil organic matter. Organic matter decomposition provides plant nutrients in soil, which in turn increases crop productivity. Availability of nutrients and nitrogen (N) and phosphorus from organic waste materials is dependent upon the nature of organic residues, climatic conditions, and soil moisture activity. Keeping these factors in view, the present investigation was undertaken to study the transformation of N from different organic waste materials in two contrasting soils from an eastern India, subtropical region. The results showed that the amounts of ammoniacal-N (NH4-N), nitrate-N (NO3-N), hydrolysable N (HL-N), and nonhydrolysable (NHL-N) were increased for up to 60 days of soil submergence and increased further with the increase (1% by weight of soil) of organic residue application. Considering the effect of various organic waste materials, it was found that the amounts of NH4-N, NO3-N, HL-N, and NHL-N were higher with the application of groundnut hull as compared to wheat straw and potato skin, which may be due to relatively narrow carbon:N ratio of groundnut (22:43) than that of wheat straw (62:84) and potato skin (71:32); however, the results showed that the release of NH4-N, NO3-N, HL-N, and NHL-N was in the order of groundnut hull > wheat straw > potato skin.

Studies of the preceding crop effect of ley in ecological agriculture

2000 ◽  
Vol 15 (2) ◽  
pp. 68-78 ◽  
Author(s):  
Artur Granstedt ◽  
Gärd L-Baeckström
Keyword(s):  
Organic Matter ◽  
Soil Fertility ◽  
Field Experiments ◽  
Crop Residues ◽  
Climatic Conditions ◽  
Clay Soils ◽  
N Leaching ◽  
Botanical Composition ◽  
Preceding Crop ◽  
Potentially Mineralizable N

AbstractTwo field experiments were conducted from 1991 to 1996 on clay soils in central Sweden to provide information for improving soil fertility, minimizing N leaching, and increasing the benefits of ley to subsequent crops in organic farming. The results show that it is possible to calculate the amount of N mineralized during the 2-year period following incorporation of ley-crop residues, based on the proportion of incorporated organic matter stabilized in the more resistant humus fractions (i.e., the humification coefficient, calculated to be 35–40%), C:N ratios of the ley biomass, and ley age (humification appears to be higher in older crop residues). The fractions of potentially mineralizable N that are actually mineralized in the first and second years after ley incorporation vary depending on ley age and botanical composition and climatic conditions.

scholarly journals Earthworm: A Natural Ecofriendly Organism for Recycling of Organic Residues and Improvement of Soil Health by Vermicompost

2013 ◽  
Vol 1 (4) ◽  
pp. 171-175
Author(s):  
Sanjeev Kumar Ambasta ◽  
Seema Kumari
Keyword(s):  
Organic Matter ◽  
Crop Residues ◽  
Nutrient Management ◽  
Soil Health ◽  
Crop Productivity ◽  
Agricultural Field ◽  
Soil Microbial ◽  
Ground Water Recharge ◽  
Water Recharge ◽  
Soil Microbial Population

Vermicompost of agriculture waste is an important method in which organic waste such as leaves or stalks of agricultural field is converted into useful compost by means of worms is useful to the environment. Earthworm and microbes acts together and breaks down the complex organic matter of agricultural field and resulting material is rich in nutrients and oxygen. Composting is becoming an effective way to increase organic matter of soil. In addition to increasing organic matter of soil compost also increases soil microbial population (Pera et al., 1983; Perucci, 1990), which leads to the improvement of soil quality. The entire residues after crop is harvested must go back to the soil to replenish the lost nutrient, so vermicompost is considered as excellent way to recycling nutrient in the ecosystem. Soil organic carbon enhancement through crop residues recycling by means of vermicomposting along with fertilizers and integrated nutrient management (INM) are major option to improves soil health and crop productivity. The major objective to vermicomposting is that more ground water recharge and lesser depletion of water table as well as reduces soil salinity and less pollution by agrochemicals.DOI: http://dx.doi.org/10.3126/ijasbt.v1i4.9130 Int J Appl Sci Biotechnol, Vol. 1(4): 171-175

scholarly journals Nutrients Recovery during Vermicomposting of Cow Dung, Pig Manure, and Biochar for Agricultural Sustainability with Gases Emissions

2020 ◽  
Vol 10 (24) ◽  
pp. 8956
Author(s):  
Syed Turab Raza ◽  
Bo Zhu ◽  
Jia Liang Tang ◽  
Zulfiqar Ali ◽  
Raheel Anjum ◽  
...  
Keyword(s):  
Organic Waste ◽  
Crop Residues ◽  
Animal Manure ◽  
Plant Nutrients ◽  
Pig Manure ◽  
Purple Soil ◽  
Cow Dung ◽  
Maximum Increase ◽  
Nitrogen Concentrations ◽  
Post Hoc

An experimental vermicomposting system was established in purple soil present in Sichuan Basin, China. The purpose of vermicomposting (VC) was to recycle and manage organic waste materials; for instance, animal manure and crop residues are present in great quantity. A particular use of earthworms for VC is a valuable method for retrieving essential plant nutrients. Experimental vermicomposting followed by monitoring was conducted for two months in summer with an interval of fifteen days. Four treatments, COM (compost without earthworms), VCM (using cow manure), VPM (through pig manure), and VBC (using biochar), were applied with agricultural wastes such as rapeseed and wheat straw in combination with cow dung, pig manure, and biochar, respectively. One-way analysis of variance (ANOVA) was used to statistically analyze and interpret the nutrient change among different treatments. Post hoc analysis was done using Tukey’s test. The experimental vermicomposting results revealed that VCM gives increased plant nutrients with a minimum C: N ratio (from 22.13 to 14.38) and a maximum increase in nitrogen concentrations (1.77 to 29.15 g kg−1). A significant decrease in ammonia volatilization was observed in the order VCM > VBC > VPM when compared to COM. It was experimentally established that vermicomposting is the most suitable method for converting organic waste into nutrient-rich fertilizer with the least environmental pollution load.

Crop residues amendments quality and effect on greenhouse gas emissions and aggregate stability

2020 ◽  
Author(s):  
Gheorghe Stegarescu ◽  
Jordi Escuer ◽  
Karin Kauer ◽  
Endla Reintam
Keyword(s):  
Organic Matter ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Wheat Straw ◽  
Oilseed Rape ◽  
Biochemical Composition ◽  
Crop Residues ◽  
Aggregate Stability ◽  
Total Carbon ◽  
Gas Emissions

<p>The organic residues amendments have been widely studied for their essential role of enriching the soil with organic matter. Although the pathways of the fresh organic matter additions are very complex, so is the effect. Thus, the quality of the crop residues incorporated into the soil is a valuable attribute when deciding to switch to conservation agriculture. The different C/N ratio and biochemical composition of the crop residues will affect in various ways soil CO2, N2O and CH4 emissions and soil structural stability. The study explores the effect of different crop residues incorporated in the soil on greenhouse gas emissions and aggregate stability. The incubation experiment consisted of five treatments: control (just soil), sand (as reference), soil mixed with wheat straw, soil mixed with green fresh rye residues and soil mixed with green fresh oilseed rape residues. The residues were applied into the soil at a rate of 6 g C kg-1 of soil. The pots of all the treatments were placed for incubation for 105 days at approximately 23 oC and covered with dark plastic bags. The wetting procedure was done five times at 0-11-26-46-75 days to bring the soil to field capacity for water. The sampling for the gas emissions and aggregate stability was done before wetting and after wetting. The gas emissions were sampled using the chamber method and analysed in a Gas Chromatographer. The water-stable aggregates were analysed using the wet sieving method. The plant material was chemically analysed for total carbon and nitrogen and the biochemical composition on Fourier Transform Infrared Spectroscopy. The results revealed that the cumulative CO2 emissions in oilseed rape were 8% higher than in rye treatment. Also, it was 76% higher than in wheat straw treatment and 95 % higher than in control treatment. The highest cumulative N2O emissions were registered in rye treatment 18.79 (±0.48) mg m-2 h-1. Oilseed rape treatment had 19% lower cumulative emissions compared to rye and 98 % higher compared to control and wheat straw treatments. Both rye and oilseed rape had a low C/N ratio 12 and 10, respectively whereas wheat straw had 98 C/N ratio. From a biochemical point of view, the wheat straw was richer in stable compounds such as lignin, cellulose and hemicellulose followed by rye and oilseed rape which had a higher content of labile compounds such as sugars and easily decomposable proteins. In general mean aggregate stability increased significantly only in the wheat straw treatment being 34.69% ±1.35. </p><p>In conclusion, this study showed that crop residues with low C/N ratio have a negative effect on greenhouse emissions. But do not have a long term effect on the increase of aggregate stability. On the contrary, the wheat straw has a positive impact on greenhouse gases, and it increased aggregate stability. </p>

scholarly journals Review on Termite Mound Soil Characteristics and Agricultural Importance

2020 ◽  
pp. 1-12
Author(s):  
S. Subi ◽  
A. Merline Sheela
Keyword(s):  
Organic Matter ◽  
Soil Amendment ◽  
Crop Residues ◽  
Microbial Population ◽  
Nutrient Content ◽  
Crop Productivity ◽  
Growth And Yield ◽  
Termite Mound ◽  
Degrading Enzymes ◽  
Water Holding

Addition of soil with various amendments to boost up the nutrient content and moisture holding capacity is necessary for improving the crop productivity. Among the various amendments, compost prepared from the crop residues attracted much attention in recent years. The crop residues used as feedstock are added with different bulking materials such as rice husk and sewage sludge.  In addition to these, termite mound soil which is available in plenty in tropical countries is found to be a suitable bulking material and is added with crop residues to obtain nutrient rich compost. In this paper we reviewed researches carried out on the characteristics, microbial diversity and organic matter degrading enzymes in termite mound soil. Further, the research carried out on the characteristics of compost amended with termite mound soil and its effect on crop productivity is also reviewed with the available literature. Majority of the investigations concluded that termite mound soil possessed more microbial population with a huge array of organic matter degrading enzymes. Few studies monitored the nutrient content of the soil and water holding capacity of the soil and crop yield when termite mound soil was used as a soil amendment. Limited studies were conducted using termite mound soil as a bulking material to compost crop residues. Based on the outcome of various studies, it is understood that the termite mound soil might be used as a soil amendment to increase growth and yield of crops.

scholarly journals Effect of crop residues on soil aggregate stability

2008 ◽  
pp. 23-32
Author(s):  
Andrea Huisz ◽  
Tibor Tóth ◽  
Tamás Németh
Keyword(s):  
Organic Matter ◽  
Wheat Straw ◽  
Soil Structure ◽  
Crop Residues ◽  
Aggregate Stability ◽  
Soil Aggregate ◽  
Organic Matters ◽  
Soil Aggregate Stability

Soil structure may be improved by adding readily decomposable organic matter. The extent of amelioration depends on the chemical build-up and decomposability of the crop residues. Three different kinds of organic matters were investigated: (1) maize stem, (2) wheat straw, and (3) maize stem& wheat straw. Comparing the aggregate stabilizing effects of the differently decomposable organic matters to each other, the expected maize stem & wheat straw (mw) > maize stem (m) > wheat straw (w) order was proved.

Relating particulate organic matter-nitrogen (POM-N) and non-POM-N with pulse crop residues, residue management and cereal N uptake

Agronomie ◽  
2002 ◽  
Vol 22 (7-8) ◽  
pp. 777-787 ◽  
Author(s):  
Graeme D. Schwenke ◽  
Warwick L. Felton ◽  
David F. Herridge ◽  
Dil F. Khan ◽  
Mark B. Peoples
Keyword(s):  
Organic Matter ◽  
Particulate Organic Matter ◽  
Crop Residues ◽  
N Uptake ◽  
Residue Management ◽  
Pulse Crop

Characterisation of production of organic rich topsoil from sludge

2000 ◽  
Vol 42 (9) ◽  
pp. 195-201 ◽  
Author(s):  
P. Andreasen ◽  
P. B. Mortensen ◽  
A. Stubsgaard ◽  
B. Langdahl
Keyword(s):  
Organic Matter ◽  
Oxygen Consumption ◽  
Oxygen Transport ◽  
Mineral Soil ◽  
Climatic Conditions ◽  
Growth Media ◽  
Soil Mixture ◽  
Water Suspension ◽  
Aerobic Process ◽  
Stable Product

The stabilisation of a sludge-mineral soil mixture and a method to evaluate the state of stabilisation were investigated. The organic matter and nitrogen content are reduced up to 50% during a stabilisation process of three months under Danish climatic conditions. The stabilisation was shown to be an aerobic process limited by oxygen transport within the mixture. The degree of stabilisation was evaluated by oxygen consumption in a water suspension and the results showed that a stable product was achieved when oxygen consumption was stable and in the level of natural occurring aerobic soils (0.1 mgO2/(g DS*hr). The study thereby demonstrates that a stability of a growth media can be controlled by the oxygen consumption method tested.

scholarly journals EVALUATION OF HAZARDS OF WASTE MATERIALS IN CLINICS AND HOSPITALS: A RESEARCH

2014 ◽  
Vol 04 (03) ◽  
pp. 011-014
Author(s):  
Ram Kumar Srivastava ◽  
Iqbal Ali ◽  
Puneet Wadhawani ◽  
Anand Kumar ◽  
Praveen Awasthi
Keyword(s):  
Health Care ◽  
Health Risk ◽  
Human Activities ◽  
Development Project ◽  
Waste Materials ◽  
Residential Areas ◽  
Domestic Waste ◽  
Urban Waste ◽  
Rural And Urban ◽  
Health Care Waste

AbstractWastes from the cities and villages cannot be avoided from man's existence. It is essential to safely put these unwanted or discarded material away, in the interest of the community. During human activities a lot of waste matter is produced due to various development project, industrialization and modernization of the community. In this study waste materials were collected from various hospitals and rural and urban residential areas. These wastes were divided into two main categories- Health care waste and domestic waste. The survey indicated 80% solid waste deals with the domestic and urban waste while only 20% deals with the health care waste. The health care waste is regarded hazardous and may cause a variety of health risk.

Intake and digestion of lucerne hay and wheat straw by cattle 14 to 56 weeks of age

1991 ◽  
Vol 42 (4) ◽  
pp. 621 ◽  
Author(s):  
J Leibholz
Keyword(s):  
Organic Matter ◽  
Wheat Straw ◽  
Dry Matter ◽  
Total Organic Matter ◽  
Wet Sieving

Eight Friesian calves, 8 weeks of age, were prepared with rumen and abomasal cannulae. Four calves were given lucerne and four calves were given wheat straw sprayed with urea and minerals. The diets were changed over between the calves every 6 weeks until the calves were 56 weeks of age. The particles in the rumen that passed through a 1 mm screen during wet sieving were 66 to 73% of the total particles in the rumen of calves given lucerne and 77 to 84% of the particles in the rumen of the calves given wheat straw. The digestion of organic matter in the stomach was 71 to 79% of the total organic matter digested in the calves given lucerne. In the calves given wheat straw, between 82 and 95% of the total organic matter digestion occurred in the stomach. The apparent digestion of dry matter in the calves given lucerne was 61-6856 and did not change with age of the calves. The apparent digestion of dry matter when the calves were given wheat straw was 42% at 14 weeks of age, and it increased to 53% at 56 weeks of age. The digestion of nitrogen in the intestine in the heifers given wheat straw increased to 26 weeks of age while that of heifers given lucerne hay decreased.

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