EFFECT OF IRRIGATION BY WASTEWATER ON SOIL PROPERTIES, PLANT GROWTH AND DRAINAGE WATER QUALITY

Nitrate-nitrogen (N) losses in surface drainage and runoff water from ornamental plant production areas can be considerable. In N-limited watersheds, discharge of N from production areas can have negative impacts on nontarget aquatic systems. This study monitored nitrate-N concentrations in production area drainage water originating from a foliage plant production area. Concentrations in drainage water were monitored during the transition from 100% reliance on fertigation using urea and nitrate-based soluble formulations (SF) to a nitrate-based controlled-release formulation (CRF). During the SF use period, nitrate-N concentrations ranged from 0.5 to 322.0 mg·L−1 with a median concentration of 31.2 mg·L−1. Conversely, nitrate-N concentrations during the controlled-release fertilization program ranged from 0 to 147.9 mg·L−1 with a median concentration of 0.9 mg·L−1. This project demonstrates that nitrate-N concentrations in drainage water during the CRF program were reduced by 94% to 97% at the 10th through 95th percentiles relative to the SF fertilization program. Nitrate-N concentrations in drainage water from foliage plant production areas can be reduced by using CRF fertilizer formulations relative to SF formulations/fertigation. Similar results should be expected for other similar containerized crops. Managers located within N-limited watersheds facing N water quality regulations should consider the use of CRF fertilizer formulations as a potential tool (in addition to appropriate application rates and irrigation management) for reducing production impacts on water quality.

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Impact of Controlled Drainage and Subirrigation on Water Quality in the Red River Valley

Water ◽

10.3390/w13030308 ◽

2021 ◽

Vol 13 (3) ◽

pp. 308

Author(s):

Kristen Almen ◽

Xinhua Jia ◽

Thomas DeSutter ◽

Thomas Scherer ◽

Minglian Lin

Keyword(s):

Water Quality ◽

Surface Water ◽

Surface Water Quality ◽

Drainage Water ◽

River Valley ◽

Red River ◽

Nutrient Loss ◽

Controlled Drainage ◽

Red River Valley ◽

The Impact

The potential impact of controlled drainage (CD), which limits drainage outflow, and subirrigation (SI), which provides supplemental water through drain tile, on surface water quality are not well known in the Red River Valley (RRV). In this study, water samples were collected and analyzed for chemical concentrations from a tile-drained field that also has controlled drainage and subirrigation modes in the RRV of southeastern North Dakota from 2012–2018. A decreasing trend in overall nutrient load loss was observed because of reduced drainage outflow, though some chemical concentrations were found to be above the recommended surface water quality standards in this region. For example, sulfate was recommended to be below 750 mg/L but was reported at a mean value of 1971 mg/L during spring free drainage. The chemical composition of the subirrigation water was shown to have an impact on drainage water and the soil, specifically on salinity-related parameters, and the impact varied between years. This variation largely depended on the amount of subirrigation applied, soil moisture, and soil properties. Overall, the results of this study show the benefits of controlled drainage on nutrient loss reduction from agricultural fields.

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Sewage sludge application enhances soil properties and rice growth in a salt-affected mudflat soil

Scientific Reports ◽

10.1038/s41598-020-80358-2 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Yuhua Shan ◽

Min Lv ◽

Wengang Zuo ◽

Zehui Tang ◽

Cheng Ding ◽

...

Keyword(s):

Sewage Sludge ◽

Organic Carbon ◽

Plant Growth ◽

Root Growth ◽

Soil Fertility ◽

Soil Properties ◽

Soluble Sugar ◽

Soil Reclamation ◽

Rice Growth ◽

Promote Plant Growth

AbstractThe most important measures for salt-affected mudflat soil reclamation are to reduce salinity and to increase soil organic carbon (OC) content and thus soil fertility. Salinity reduction is often accomplished through costly freshwater irrigation by special engineering measures. Whether fertility enhancement only through one-off application of a great amount of OC can improve soil properties and promote plant growth in salt-affected mudflat soil remains unclear. Therefore, the objective of our indoor pot experiment was to study the effects of OC amendment at 0, 0.5%, 1.0%, 1.5%, and 2.5%, calculated from carbon content, by one-off application of sewage sludge on soil properties, rice yield, and root growth in salt-affected mudflat soil under waterlogged conditions. The results showed that the application of sewage sludge promoted soil fertility by reducing soil pH and increasing content of OC, nitrogen and phosphorus in salt-affected mudflat soil, while soil electric conductivity (EC) increased with increasing sewage sludge (SS) application rates under waterlogged conditions. In this study, the rice growth was not inhibited by the highest EC of 4.43 dS m−1 even at high doses of SS application. The SS application increased yield of rice, promoted root growth, enhanced root activity and root flux activity, and increased the soluble sugar and amino acid content in the bleeding sap of rice plants at the tillering, jointing, and maturity stages. In conclusion, fertility enhancement through organic carbon amendment can “offset” the adverse effects of increased salinity and promote plant growth in salt-affected mudflat soil under waterlogged conditions.

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A WETLAND TO IMPROVE AGRICULTURAL SUBSURFACE DRAINAGE WATER QUALITY

Transactions of the ASAE ◽

10.13031/2013.11068 ◽

2002 ◽

Vol 45 (5) ◽

Cited By ~ 7

Author(s):

P. S. Miller ◽

J. K. Mitchell ◽

R. A. Cooke ◽

B. A. Engel

Keyword(s):

Water Quality ◽

Subsurface Drainage ◽

Drainage Water

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Correlation of pH on Soil Physicochemical Properties using Linear Regression Model for Spectral Data Analysis

International Journal of Advanced Remote Sensing and GIS ◽

10.23953/cloud.ijarsg.504 ◽

2021 ◽

Vol 10 (1) ◽

pp. 3492-3500

Author(s):

Vipin Y. Borole ◽

◽

Sonali B. Kulkarni ◽

Keyword(s):

Linear Regression ◽

Plant Growth ◽

Physicochemical Properties ◽

Regression Model ◽

Soil Properties ◽

Spectral Data ◽

Linear Regression Model ◽

Soil Analysis ◽

Soil Physicochemical Properties ◽

Analytical Technique

Soil properties may be varied by spatially and temporally with different agricultural practices. An accurate and reliable soil properties assessment is challenging issue in soil analysis. The soil properties assessment is very important for understanding the soil properties, nutrient management, influence of fertilizers and relation between soil properties which are affecting the plant growth. Conventional laboratory methods used to analyses soil properties are generally impractical because they are time-consuming, expensive and sometimes imprecise. On other hand, Visible and infrared spectroscopy can effectively characterize soil. Spectroscopic measurements are rapid, precise and inexpensive. Soil spectroscopy has shown to be a fast, cost-effective, environmentally friendly, non-destructive, reproducible and repeatable analytical technique. In the present research, we use spectroscopy techniques for soil properties analysis. The spectra of agglomerated farming soils were acquired by the ASD Field spec 4 spectroradiometer. Different fertilizers treatment applied soil samples are collected in pre monsoon and post monsoon season for 2 year (4 season) for banana and cotton crops in the form of DS-I and DS-II respectively. The soil spectra of VNIR region were preprocessed to get pure spectra. Then process the acquired spectral data by statistical methods for quantitative analysis of soil properties. The detected soil properties were carbon, Nitrogen, soil organic matter, pH, phosphorus, potassium, moisture sand, silt and clay. Soil pH is most important chemical properties that describe the relative acidity or alkalinity of the soil. It directly effect on plant growth and other soil properties. The relationship between pH properties on soil physical and chemical parameters and their influence were analyses by using linear regression model and show the performance of regression model with R2 and RMSE. Keywords soil; physicochemical properties; spectroscopy; pH

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Comparison and evaluating reaction factor and drainage water quality with respect to direction of surface irrigation

International Journal of Hydrology Science and Technology ◽

10.1504/ijhst.2021.116684 ◽

2021 ◽

Vol 12 (2) ◽

pp. 214

Author(s):

Zeinab Mirzaie ◽

Rohallah Fatahi ◽

Saeid Eslamian ◽

Azarakhsh Azizi

Keyword(s):

Water Quality ◽

Drainage Water ◽

Surface Irrigation ◽

Reaction Factor

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EFFECTS OF LIME ON EXTRACTABLE ALUMINUM AND OTHER SOIL PROPERTIES AND ON BARLEY AND ALFALFA GROWN IN POT TESTS

Canadian Journal of Soil Science ◽

10.4141/cjss72-054 ◽

1972 ◽

Vol 52 (3) ◽

pp. 427-438 ◽

Cited By ~ 6

Author(s):

A. J. MacLEAN ◽

R. L. HALSTEAD ◽

B. J. FINN

Keyword(s):

Plant Growth ◽

Soil Properties ◽

Soil Ph ◽

Acid Soil ◽

Soil Samples ◽

Neutral Salt ◽

Incubation Experiment ◽

Pot Experiments ◽

P Content ◽

Mn Content

Liming of six acid soil samples in an incubation experiment with rates to raise the soil pH to 6.0 or above eliminated Al soluble in 0.01 M CaCl2, reduced soluble Mn and Zn, increased NO3-N markedly, and at the highest pH increased the amounts of NaHCO3-soluble P in some of the soils. In corresponding pot experiments, liming increased the yield of alfalfa and in three of the soils the yield of barley also. Liming reduced the concentrations of the metals in the plants and at the highest pH tended to increase the P content of the plants. Liming to a pH of about 5.3 eliminated or greatly reduced soluble Al and the soils were base saturated as measured by the replacement of Al, Ca, and Mg by a neutral salt. There was some evidence that liming to reduce soluble Al and possibly Mn was beneficial for plant growth. Gypsum increased the concentrations of Al, Mn, and Zn in 0.01 M CaCl2 extracts of the soils whereas phosphate reduced them. The changes in the Mn content of the plants following these treatments were in agreement with the amounts of Mn in the CaCl2 extracts.

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