Treated domestic sewage irrigation significantly decreased the CH4, N2O and NH3 emissions from paddy fields with straw incorporation

Short-term effects of wheat straw incorporation into paddy field include stimulation of CH4 emissions, immobilisation of available N, suppression of rice growth, and accumulation of toxic materials. To study these short-term effects as affected by timing of rice transplantation, a field experiment was conducted at Dapu, China, in 2005. Two levels of wheat straw (0 and 3.75 t/ha) and 2 rice-transplanting times (normal and delayed) were adopted in this experiment. Methane emissions, concentrations of soil mineral N, dry matter accumulations, and grain yields were measured. Delayed rice transplantation had no effect on total CH4 emission from paddy fields incorporated with wheat straw (P > 0.05), but a significant effect on mineralisation of N (P < 0.05), in contrast to the net N immobilisation in the fields where seedlings were transplanted on the normal date. In paddy fields incorporated with wheat straw, delayed transplantation tended to promote rice growth and increase grain yield compared with transplantation on the normal date.

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Treated domestic sewage irrigation effects on soil hydraulic properties in arid and semiarid zones: A review

Soil and Tillage Research ◽

10.1016/j.still.2009.04.011 ◽

2009 ◽

Vol 106 (1) ◽

pp. 152-163 ◽

Cited By ~ 49

Author(s):

Marcos Lado ◽

Meni Ben-Hur

Keyword(s):

Hydraulic Properties ◽

Domestic Sewage ◽

Sewage Irrigation ◽

Soil Hydraulic Properties ◽

Soil Hydraulic ◽

Irrigation Effects ◽

Arid And Semiarid

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Impact of Treated Domestic Sewage Irrigation on Crop Yield, Plant Uptake and Soil Properties in Central India

IRA-International Journal of Technology & Engineering (ISSN 2455-4480) ◽

10.21013/jte.icsesd201708 ◽

2017 ◽

Vol 7 (2 (S)) ◽

pp. 79

Author(s):

A.R. Mhaske ◽

P. J. Nikam

Keyword(s):

Water Demand ◽

Plant Uptake ◽

Central India ◽

Domestic Wastewater ◽

Nutrient Status ◽

Sewage Water ◽

Domestic Sewage ◽

Well Water ◽

Sewage Irrigation ◽

Treated Sewage

The rising population has not only increased the fresh water demand but also increased the volume of wastewater generated. Increasing need for water has resulted in the emergence of domestic wastewater application for agriculture and its relative use. In the present study a field experiment was conducted during 2012-13 and 2013-14 in which spinach (Spinacia oleracia) were irrigated with well water (WW) and domestic treated sewage water (DTSW). The use of the DTSW has shown improvement in the physicochemical properties of the soil, yield along with the nutrient status as compared to the application of WW. Post harvest pH of the soil in DTSW was in the range 7.85 whereas it was 7.93 in WW. EC and OC were found 0.43dS m-1 and 5.41 g kg-1 respectively in DTSW whereas it was 0.31 dS m-1 and 5.27 g kg-1 respectively in WW. NPK were found 279.6, 17.22 and 435.70 kg ha-1 respectively in DTSW whereas it was found, 266.8, 16.44 to 428.1 kg ha-1 respectively in WW. The physical properties of the soil like BD and HC observed 1.32 Mg m-3and 1.50 cm hr-1 respectively in DTSW and it was found 1.42 Mg m-3 and 1.54 cm hr-1 respectively in WW. The content of micronutrients and heavy metals in soil and plant due to irrigation of DTSW were well below the phytotoxicity limits in both soil and plant. The findings give applicable advice to commercial farmers and agricultural researchers for proper management and use of treated domestic wastewater for agricultural purpose.

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