Influence of Treated Sewage Sludge Applications on Corn and Second Crop Wheat Yield and Some Properties of Sandy Clay Soil (original) (raw)
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Study of sewage sludge use in agriculture and its effect on plant and soil
Agriculture and Biology Journal of North America, 2010
The plant macro and micro nutrients as well as organic matter make sludge disposal in soil an attractive option. Nitrogen has received most attention and it is normally the most abundant sludge nutrient. One of the best alternatives to waste disposal is through the soil-plant system as a fertilizer. Based on properties different wastes can be co-recycled in order to take simultaneously the best profit and minimize environmental pollution .An experiment was carried out with a calcareous soil. Using six different doses of a sewage sludge were treated. A crop barley (Hordium Vulgare, Giza 123) was grown in the amended soils. The application of sewage sludge to the calcareous soil lowered the pH of the soil, although the value always around 7.75-7.9 at the end of the experiment. In the barley plants it was observed that the higher the yield, the higher the nitrogen contents. Electrical conductivity rose with organic amendment. Also it improved the nutrient level of the soil, particularly nitrogen and available phosphorus.
Effect of Soil Amendment with Sewage Sludge on Wheat Growth and Productivity
Sinai Journal of Applied Sciences (Print), 2013
Wheat as a cereal crop might display the top among all strategic crops, in Egypt the annual production is always behind the need and the gap between production and consumption remain great. The main target of the present investigation has been to study the effect of sewage sludge as organic fertilizer on wheat as a major cereal crop in Egypt. Composted and air-dried sewage sludge was obtained from the Municipal Wastewater Treatment Station at Al-Sheikh-Zowaied and applied at three rates for comparison, these rates were: 10%, 20% and 30%. For experimentation, the recommended cultivar Sakha-93 of Triticum aestivum L. was obtained and field experiments were conducted within the University Agriculture Farm at Al-Arish where the soil is typically sandy loam with little silt and clay. From each treatment, three plant samples were collected during the vegetative and reproductive phases and finally at the grain stage for comparing growth, productivity and yield-quality. The results indicated that fresh & dry weight of plant parts increased greatly by increasing the amount of sewage sludge. The effect was more prominent at the flowering stage. All concentrations of sludge amendment showed prominent increase in fresh & dry weight. Sludge amendment increased greatly total lipids, total protein and heavy metals absorption; however, the amount of increase was much higher compared to control natural soil. Growth and yield of wheat were greatly increased by sewage sludge amendment. The best yield (1.69 Ton/ Feddan) was reported at the sludge concentration of 20%.
Bioscience Journal, 2017
In recent decades, organic and/or inorganic nonconventional waste such as sewage sludge, agroindustrial or industrial waste, inorganic waste, steel slag, etc., have become some of the most promising alternatives to commercial fertilizer shortages or rising prices. Hence, the aim was to evaluate morphological changes in corn plants and variations in chemical properties of cohesive Yellow Latosol (Oxisol), after the incorporation of sewage sludge doses from domestic waste and the dairy industry. The experimental units were randomised blocks designed with four repetitions. The treatments consisted of five doses of each sewage sludge incorporated into the soil, that is: Domestic Sewage Sludge (DSS) in doses of 0.0; 3.1; 4.6; 6.1 and 9.2 Mg ha-1 (on a dry basis), and Industrial Sewage Sludge (ISS) in doses of 0.0; 5.2; 7.8; 10.4 e 15.6 Mg ha-1 (on a dry basis), all equivalent to 0; 100; 150; 200 and 300 kg of total N ha-1. Doses equivalent to 150-300 kg total N ha-1 led to greater gains in stem diameter, number of leaves, fresh and dry mass of leaves. Increasing doses of both sewage sludges enable gains in the morphological variables studied, except for root length. Positive linear increments occur in the pH and phosphorus content of soils when the doses of sewage sludge are increased. The exchangeable aluminium and potential acidity are reduced, from the first dose of industrial sewage sludge, with no significant difference for domestic sewage sludge.
The effect of municipal sewage sludge on the quality of soil and crops
Purpose To examine the effects of the application of composted sewage sludge fertilizer (commercially sold as Kala compost) and inorganic (NPK) fertilizers on soil quality and on two crops (radish and beans) irrigated using groundwater and sewage treated wastewater (TWW) for irrigation by measuring heavy metals in the soil and plants and other parameters such as crops yield, TOC in soil, chlorophyll index and total nitrogen. Methods The field experiments were conducted in an open area in Agricultural Experimental Study at Sultan Qaboos University campus, Oman. In this research, ''green beans and white radish'' were examined under the application of Kala and NPK fertilizers. The experimental design was a randomized complete block with four replicates. Results The results showed that the yield, TOC and chlorophyll contents of green beans and white radish increased when soil was amended with Kala compost compared to NPK. Chemical analysis of soil and the two crops did not show any risk of heavy metal accumulation. Conclusions Considering that the experiment was a short duration one, there is a need for more continuous long-term experiments (at least 5 years) that will improve the understanding on the effects of composted sewage sludge on soil fertility and crop yield to contribute to the development of sustainable agricultural practices in an arid environment of Oman.
Environmental Nanotechnology, Monitoring & Management, 2015
Recycling of sewage sludge as an organic amendment and source of macro-and micro-nutrient in agricultural fields can be a potential option for proper disposal of organic wastes. A field experiment was conducted at the experimental farm of Indian Agricultural Research Institute, New Delhi, to examine the short-term effect of municipal sewage sludge application on soil physical, chemical and biological properties of a sandy loam soil (typic haplustept) under cowpea-wheat cropping system. Control and four treatments adopted in this study were, 100%NPK (nitrogen, phosphorus and potassium), and three sludge applications i.e. equivalent to 5, 10, 15 t ha −1. The results showed a positive effect of sewage sludge on different parameters. Bulk density was decreased by about 21% in surface layer, increased the mean weight diameter (MWD), porosity, dehydrogenase activity and microbial biomass carbon. A higher amount of aggregate associated organic carbon was associated with soil macro-aggregate (>0.25 mm) in comparison to micro-aggregate (<0.25 mm). Sewage sludge at 15 t ha −1 produced most prominent effect in the upper 15 cm soil layer. Considerable improvement in microbial biomass carbon, dehydrogenase activity and aggregate associated organic matter was observed particularly when higher amount of sludge was applied. Lower quantity of organic waste showed a beneficial trend but in a smaller extent.
Ecological Chemistry and Engineering S
Municipal sewage sludge from rural sewage treatment plants is characterized by a substantial content of organic matter and macronutrients, which can be used in cultivation of cereals. In a farm located in the commune of Iwanowice in the south of Poland (Malopolska province), municipal sewage sludge was applied under spring wheat cultivation. The experiment was set up on heavy soil with slightly acid reaction and medium content of available forms of P, K, Mg. Application of sewage sludge in a dose of 23 Mg fresh matter per hectare (4.21 Mg d.m.) led to no significant changes in chemical properties of the soil. Application of sewage sludge significantly increased yield of spring wheat. That increase led to a significant decrease in the content of N, P, K, Na, Mg and Ca in spring wheat. Utilization of N, Mg, K, P and Ca from sewage sludge by spring wheat was at a level of 82, 63, 44, 36, 9 %, respectively, of the amount introduced with the waste. Application of municipal sewage sludge ...
Cumulative Effects of Sewage Sludge on Soil Physical and Chemical Characteristics
WATER AND …, 2010
Wastewater sludge has relatively high amounts of organic matter and salts which favorably affect the physical and chemical characteristics of the receiving soil. Hence, it can be used as a cheap fertilizer if properly utilized. A number of studies have been reported in Iran on the effects of sludge on soil chemical properties but few studies have been conducted to investigate its effects on soil physical characteristics. In order to study the cumulative effects of sludge on hydraulic conductivity, bulk density, MWD, soil infiltration, EC, and soil pH, an experiment was conducted in a complete randomized design with 7 treatments (1 × 22.5, 2 × 22.5, 3 × 22.5, 1 × 45, 2 × 45 and 3 × 45 ton/ha wastewater sludge) in three replications over three years. The above mentioned traits were measured after the third year of the experiment period. Results showed that increasing amounts of sludge enhanced saturated hydraulic conductivity, soil infiltration, MWD, and EC but decreased bulk density. A significant correlation was observed between the amount of sludge and soil physical characteristics. Factor analysis showed that the amount of sludge and all soil physical characteristics were in first order (physical characteristic factor) which explained 71% of the total variance, indicating the high impact of sludge on soil physical characteristics. The second factor was pH (a chemical characteristic) that explained only 17% of the total variance. Finally, no relationship was found between pH and soil physical characteristics.
Municipal Sewage Sludge Effects on Maize Yield, Nitrogen Use Efficiency, and Soil Properties
Journal of Soil Science and Plant Nutrition
Biosolids are frequently used as organic soil additives. This 2-year field study investigated the effects of sewage sludge (SWS) application on maize (Zea mays L.) production, nitrogen accumulation, redistribution, and nitrogen use efficiency, as well as on grain element concentrations and soil properties. Treatments included three SWS rates (20, 40, and 80 Mg ha−1 year‒1), mineral fertilizer (300 kg N ha−1 year‒1 and 26 kg P ha−1 year‒1), and an unamended control. Plant samples were collected at silking and maturity in both years, while soil samples were taken following maize harvest in the second year. Maize grain yield increased by 143 kg ha−1 for every Mg increase in SWS rate. Sewage sludge application resulted in maize grain yield comparable to or even greater than that of mineral fertilizer. Nitrogen uptake and translocation to grains increased quadratically with increasing SWS rates. Nitrogen use efficiency increased with moderate SWS application (up to 40 Mg ha−1) but decrea...
Journal of environmental management, 2018
Due to increasing demand of P fertilizers and gradual decrease in P resources, recyclable P is the focus of researchers in recent years. Sewage sludge (SS) is a municipal waste that contains appreciable amounts of P and probably other nutrients. In present study, the effects of various SS and their biochars (450 °C for 2 h) were investigated on soil properties and P uptake in wheat (Triticum aestivum) with and without P fertilizer. The biomass of plants and grain yield were significantly increased with application of SS and their biochars as compared to the control treatment either without or with P application. Moreover, there was significant interaction between treatments and P application for the concentration of K, and P in shoots and roots of wheat. Shoot P concentration was not significantly affected with SS than biochars whereas root P concentration was higher in SS treatments than respective biochars. Higher increase in Olsen's P concentration was observed in populated a...