Changes in Soil Physical Properties Due to Organic Waste Applications: A Review

Khaleel, R.; Reddy, K. R.; Overcash, Michael

doi:10.2134/jeq1981.00472425001000020002x

Cited by 425 publications

(248 citation statements)

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“…The increase in soil moisture (%) can be attributed to the improvement in soil structure and water holding capacity of the soil due to addition of organic manures. These results are in line with the findings of Gupta et al, (1977), Khaleel et al, (1981), Metzger and Yaron (1987). Bijalwan (2010) reported that soil moisture was higher in agri-horticulture compared to sole agriculture (tree less or control).…”

Section: Available Potassiumsupporting

confidence: 88%

Characteristics of Soil under Greengram-Plum based Agroforestry System in Kashmir Valley, India

Shah¹,

Dutt²,

Bhat³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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Section: Available Potassiumsupporting

confidence: 88%

Characteristics of Soil under Greengram-Plum based Agroforestry System in Kashmir Valley, India

Shah¹,

Dutt²,

Bhat³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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“…However, the relatively rapid rates of in®ltration could represent a potential for leaching losses to groundwater. Effects of sludge application on ®eld water-holding capacity were insigni®cant (Table 5) and expected to be minimal in ®ne-textured soils (Khaleel et al, 1981). The higher bulk density of the sludge row and inter-row areas is attributed to soil compaction as a result of increased traf®c of the sludge injection operation.…”

Section: Resultsmentioning

confidence: 99%

Field and laboratory evaluation of soil quality changes resulting from injection of liquid sewage sludge

Stamatiadis

Doran

Kettler

1999

Applied Soil Ecology

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Soil quality changes resulting from repeated or single injection of liquid municipal sewage sludge were evaluated in terraced cropland in eastern Nebraska, USA. Differences in soil properties among sampling locations were explained primarily by two factors, landscape position and sludge injection. Selected chemical properties (pH, EC, NO 3 ±N) did not generally differ between landscape positions, but soil organic matter (organic C and N) and microbial activity indices (soil respiration, biomass N, available N, mineralization and nitri®cation rates) were more sensitive indicators of change. Values of these indicators generally increased down-slope from the upper terrace to the grassed waterway on a west facing slope. A probable similar pattern on the east slope was obscured by repeated application of sludge. Single or repeated (long-term) sludge injection increased the readily decomposable organic matter, ammonium-and available-N in soil (0±30.5 cm depth). These changes stimulated soil microbial activity as evidenced by increased basal respiration, net mineralization and nitri®cation rates. Consequently, nitri®cation of ammonium-N was re¯ected in soil chemical properties as increased soil nitrate-N (to levels that were more than two times higher than suf®ciency levels for corn) and EC and by decreased pH. In-®eld measurements detected changes in physical properties such as a decrease of in®ltration rate caused by sludge injection and soil compaction as a result of traf®c operations. Differences between the sites of single and repeated sludge injection were found in soil pH, ammonium-N, organic matter and microbial activity. Recent sludge injection resulted in higher ammonium-N concentration and higher microbial activity in soil, and repeated sludge injection resulted in lower pH and in greater organic matter content. Regardless of these differences in soil properties between the sites of single and repeated sludge application, the overall changes that were caused by sludge injection had both positive and negative effects on soil quality and the sustainability of this management practice. Increase of organic matter content and biological activity improved soil fertility, but excessive amounts of ammonium salts contained in liquid sludge resulted in soil nitri®cation, excessive nitrate formation and acidi®cation. These processes reduce soil productivity, increase the risk of ground-and surface-water contamination and pose a threat to plant and animal health. #

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“…OM improves the physical, chemical and biological properties of soil, as well as giving a better soil aggregation, available water content and enhanced cation exchange capacity, leading to improved soil fertility (Khaleel et al, 1981;Metzger and Yaron, 1987;Matsumoto et al, 1999;Farooq and Nawaz, 2014). The addition of FCW also increased the soil N, P and K content, which showed a high correlation with the measured plant yield components.…”

Section: Discussionmentioning

confidence: 87%

Improving the Rice Performance by Fermented Chitin Waste

Kananont¹,

Pichyangkura²,

Kositsup³

et al. 2015

IJAB

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Fermented chitin waste (FCW), a by-product obtained from chitinase production using chitin fermentation, was evaluated for its properties for use as soil supplement based plant growth stimulator. Rice growth, yield and photosynthesis parameters were investigated following the growth of rice plants in organic fertilizer supplemented soil with the addition of 0.25, 0.50 or 1.00% (w/w) FCW in comparison with chemical fertilizer application. The application of FCW resulted in an increased photosynthetic pigment concentration and enhanced photosynthesis rate, leading to a significantly higher tiller number, shoot biomass and grain yield. At 30 d after transplantation (DAT), the rice plants grown with 0.5% (w/w) FCW-supplemented soil showed the highest level of new leaf photosynthetic pigments and photosynthesis rate, but they were not significantly different from the plants grown in soil supplemented with 1.0% (w/w) FCW. However, at 60 DAT, the plants grown under 1.0% (w/w) FCW had a significantly higher photosynthesis rate than plants grown in 0.5% (w/w) FCW supplemented soil. The addition of 0.5 or 1.0% (w/w) FCW increased the grain yield 2.7 and 4.3 folds, respectively, compared to that with chemical fertilizer application. The addition of FCW significantly increased the soil pH and organic matter, nitrogen, phosphorus and potassium contents. Therefore, the FCW from a chitin fermenter can be used as a plant growth stimulator for sustainable rice production.

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Changes in Soil Physical Properties Due to Organic Waste Applications: A Review

Cited by 425 publications

References 0 publications

Characteristics of Soil under Greengram-Plum based Agroforestry System in Kashmir Valley, India

Characteristics of Soil under Greengram-Plum based Agroforestry System in Kashmir Valley, India

Field and laboratory evaluation of soil quality changes resulting from injection of liquid sewage sludge

Improving the Rice Performance by Fermented Chitin Waste

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