Monitoring the variation of soil quality with sewage sludge application rates in absence of rhizosphere effect

This study describes the long-term effects of different sewage sludge application rates on vegetative parameters, morphological characteristics, yield, and chemical properties of fruit and leaves of sour cherry (Prunus cerasusL.) cv. “Kütahya.” A three-year field experiment was set up in a completely randomized block design with six sewage sludge application rates (0.0, 2.5, 5.0, 7.5, 10.0 and 12.5 kg of dry matter per tree) and three replications. One-year-old Kütahya sour cherry trees grafted onPrunus mahalebrootstock were evaluated. In all application rates, sewage sludge altered vegetative growth parameters, morphological characteristics, and yield. The most effective application rate was 7.5 kg per tree, it increased cumulative yield more than twofold. The results obtained in this study demonstrate that application of sewage sludge to light-textured soil is an effective means for improvement of vegetative growth and yield, and that a single application of sewage sludge sustains its effects for at least 7 years.

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Sewage sludge as nitrogen and phosphorus source for cane-plant and first ratoon crops

Revista Brasileira de Ciência do Solo ◽

10.1590/s0100-06832010000200029 ◽

2010 ◽

Vol 34 (2) ◽

pp. 553-561 ◽

Cited By ~ 17

Author(s):

Ademir Franco ◽

Cassio Hamilton Abreu Junior ◽

Dilermando Perecin ◽

Fernando Carvalho Oliveira ◽

Ana Carolina Ribeiro Granja ◽

...

Keyword(s):

Sewage Sludge ◽

Block Design ◽

Residual Effect ◽

Nitrogen And Phosphorus ◽

Mineral N ◽

Application Rates ◽

Randomized Block Design ◽

P Fertilizer ◽

Stalk Yield ◽

Sludge Application

The use of sewage sludge in Brazilian agriculture was regulated by the resolution no. 375 Conama, in 2006. However, there is a lack of research to adequate the mineral N and P fertilizer doses to be applied in agricultural fields treated with this residue. In a field experiment, the effects of application rates of sewage sludge and mineral N and P fertilizers on the productivity and technical characteristics of the cane-plant and first ratoon (residual effect) crops were evaluated. Four doses of sewage sludge (0, 3.6, 7.2 and 10.8 t ha-1, dry base), of N (0, 30, 60 and 90 kg ha-1) and of P2O5 (0, 60, 120 and 180 kg ha-1) were combined in a factorial and laid out on randomized block design, a with two replications. To evaluate the residual effect of the sludge, 120 kg ha-1 N and 140 kg ha-1 of K2O were applied in all plots. Sludge application at cane planting, with or without N and/or P fertilizer increased the stalk yield from 84 up to 118 t ha-1, with no alteration in the sugarcane quality, compared with the application of NPK fertilizer alone, resulting in a stalk yield of 91 t ha-1. The study of the response surface for stalk yield on lowfertility soil was the basis for a recommendation of mineral N and P fertilizer doses for sugarcane implantation as related to sewage sludge application rates. It was also concluded that a sludge application of 10.8 t ha-1, which is the sludge dose established based on the N criterion according to the resolution Conama nº 375, could a) reduce the use of mineral N by 100 % and of P2O5 by 30 %, with increments of 22 % in stalk yield, as a direct effect of sludge application to cane plant crop, and b) increase the stalk yield in the second harvest (first ratoon) by up to 12 % and sugar yield by up to 11 %, by the residual effect of sludge application to sugar cane.

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NITRATE NITROGEN DISTRIBUTION IN CORN LAND FOLLOWING APPLICATIONS OF DIGESTED SEWAGE SLUDGE

Canadian Journal of Soil Science ◽

10.4141/cjss75-037 ◽

1975 ◽

Vol 55 (3) ◽

pp. 287-294 ◽

Cited By ~ 10

Author(s):

N. E. STEWART ◽

E. G. BEAUCHAMP ◽

L. R. WEBBER ◽

C. T. CORKE

Keyword(s):

Sewage Sludge ◽

Soil Profile ◽

Nitrate Nitrogen ◽

Soil Surface ◽

Nitrogen Distribution ◽

Application Rates ◽

Loam Soil ◽

Crop Harvest ◽

Digested Sewage Sludge ◽

Sludge Application

Anaerobically digested sewage sludge was applied to a loam soil at rates of 1.25, 2.5 and 5.0 cm ha−1. Treatments were replicated four times, and all plots were cropped to corn. The soil in the 0- to 90-cm profile under each plot was sampled every month from May to October in 1972 and analyzed for NO3−-N and NH4+. The two highest sludge application rates resulted in significant increases in soil NO3−-N in the 0- to 90-cm soil profile, which persisted until October following crop harvest. Of the N supplied by the sludge, only about 3–12% was recovered by the corn crop. At the conclusion of the experiment, in October, 6–10% of the N supplied by the sludge remained in the soil and on the soil surface in the residual solids. Sludge applications in excess of 1.25 cm ha−1 did not produce significant increases in the yields of grain or stover.

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Monitored Sewage Sludge Application Improves Soil Quality, Enhances Plant Growth, and Provides Evidence for Metal Remediation by Sorghum bicolor L

Journal of soil science and plant nutrition ◽

10.1007/s42729-021-00524-x ◽

2021 ◽

Author(s):

Ebrahem M. Eid ◽

Kamal H. Shaltout ◽

Saad A. M. Alamri ◽

Sulaiman A. Alrumman ◽

Ahmed A. Hussain ◽

...

Keyword(s):

Sewage Sludge ◽

Plant Growth ◽

Sorghum Bicolor ◽

Soil Quality ◽

Sorghum Bicolor L ◽

Sludge Application

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Effect of long-term organic amendments on chemical and microbial properties of a luvisol

Plant Soil and Environment ◽

10.17221/3283-pse ◽

2011 ◽

Vol 57 (No. 11) ◽

pp. 513-518 ◽

Cited By ~ 16

Author(s):

H.W. Scherer ◽

D.J. Metker ◽

G. Welp

Keyword(s):

Sewage Sludge ◽

Soil Respiration ◽

Dehydrogenase Activity ◽

Farmyard Manure ◽

Application Rate ◽

N Content ◽

Application Rates ◽

Compost Application ◽

Sludge Application

We studied the long-term effect (about 45 years) of farmyard manure, sewage sludge and compost application in two increments on organic carbon (Corg), the amount (Cmic) and activity of the microbial biomass (soil respiration, dehydrogenase activity), total N content and N delivery of soils as compared to manuring with mineral fertilizers. The application of both increments of compost and the high sewage sludge application rate resulted in an increase in Corg while soils treated with both compost application rates and the high farmyard manure application rate showed a significant increase in Cmic. Cmic/Corg ranged between 1.7 and 3.3. Dehydrogenase activity and soil respiration were the greatest in the soil with the highest compost and farmyard manure application rates. Total soil N content was significantly higher in both compost treatments and in the treatment with the high sewage sludge application rate. This was accompanied by the highest N uptake of ryegrass.

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