Imazethapyr and imazapic runoff under continuous and intermittent irrigation of paddy rice

Martini, Luiz Fernando Dias; Mezzomo, Rafael; Avila, Luis Antônio de; Massey, J.H.; Marchesan, Enio; Zanella, Renato; Peixoto, Sandra Cadore; Refatti, João Paulo; Cassol, G.V.; Marques, M. E. R.

doi:10.1016/j.agwat.2013.04.005

Cited by 36 publications

(18 citation statements)

References 21 publications

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“…This is consistent with the results observed by Massey et al, who reported that intermittent flooding could reduce water use by 32% compared with traditional irrigation during a nearly 80 day wetting and drying cycle [35]. The use of intermittent flooding also reduces water runoff by 47% due to increased storage of rainwater compared with continuous flooding irrigation [36].…”

Section: Discussionsupporting

confidence: 82%

“…Appropriate management of water and fertilizers in rice paddies cannot only conserve irrigation water and increase rice yield; it can also effectively reduce discharges of nitrogen and phosphorus from the paddies, and improve the efficiency of water and fertilizer use [32][33][34]. This study of rice paddy waterfertilizer comprehensive regulation is part of a series of related studies on intermittent irrigation and nitrogenous fertilizer application [35,36]. The water-fertilizer management technique is based on the …”

Section: Discussionmentioning

confidence: 99%

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Integrating Ecological Restoration of Agricultural Non-Point Source Pollution in Poyang Lake Basin in China

Cai

Shi²,

Pan

et al. 2017

Water

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This study addresses the excessive consumption of river basin water from the Poyang Lake area in China. Consumption of water for irrigation, together with the discharge of agricultural non-point source pollution, is seriously affecting the water quality of Poyang Lake. This study assesses the application of integrated ecological restoration technology for agricultural non-point source pollution in the Ganfu Plain Area, which is an important agricultural production base in the Poyang Lake basin. The results indicated that the water-fertilizer comprehensive regulation mode for double-cropping rice provided water savings of 10.4% and increased rice yield by 6.5% per hectare. Furthermore, it reduced drainage water pollution by 20.4%, and emissions of ammonium nitrogen (NH 4 + -N), nitrate nitrogen (NO 3 − -N), total phosphorus (TP), and total nitrogen (TN) from rice paddy surfaces by 18.6%, 11.1%, 15.4%, and 16.0%, respectively. The eco-channel-pond wetland system effectively reduced TN and TP pollutant levels in rice paddy drainage water; the eco-channel reduced TN and TP by 9.3% and 14.0%, respectively; and the pond wetland system showed reductions of 8.6% and 22.9%, respectively. The "three lines of defense" purification technology, including rice field source control, eco-channel interception, and pond wetland purification, removed 29.9% of TN and 44.3% of TP.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 99%

Integrating Ecological Restoration of Agricultural Non-Point Source Pollution in Poyang Lake Basin in China

Cai

Shi²,

Pan

et al. 2017

Water

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“…In this configuration, the levee gate serves as an emergency "spillway" to remove excessive rainfall so that little, if any, water and associated solutes move between the intermittently-flooded paddies. By helping to keep agrochemicals within the paddies where they are applied, increased rainfall capture has agronomic and environmental benefits beyond water savings (Martini et al, 2013).…”

Section: Resultsmentioning

confidence: 99%

Farmer adaptation of intermittent flooding using multiple-inlet rice irrigation in Mississippi

Massey

Walker

Anders³

et al. 2014

Agricultural Water Management

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“…Additional opportunities exist to improve rice irrigation efficiency and reduce runoff by combining MIRI with intermittent flooding methods (Massey et al ) that were first developed in Asia (Bouman and Tuong ; Dong et al ). Intermittent rice flooding, also known as alternate wetting and drying (AWD) has been shown to reduce field runoff by nearly 50% (Martini et al ).…”

Section: Improving Irrigation Efficiency To Address Groundwater Declinementioning

confidence: 99%

Aquifer Depletion in the Lower Mississippi River Basin: Challenges and Solutions

Reba

Massey

Adviento-Borbe

et al. 2017

Contemporary Water Research

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The Lower Mississippi River Basin (LMRB) is an internationally‐important region of intensive agricultural crop production that relies heavily on the underlying Mississippi River Valley Alluvial Aquifer (MRVAA) for irrigation. Extensive irrigation coupled with the region’s geology have led to significant aquifer decline. The response to the decline has been multi‐faceted. Research related to three responses are highlighted: innovation in rice irrigation, on‐farm reservoirs, and managed aquifer recharge. Irrigated rice grown in Arkansas, which is nearly 50% of annual U.S. rice production, accounts for a significant portion of aquifer withdrawal. As a result, strategies for using less water while maintaining rice yields are being developed. The Rice Stewardship Partnership (RSP) began in 2015 and aims to improve irrigation management in rice lands of the LMRB. Early results from the RSP are presented. Secondly, on‐farm reservoir‐tailwater recovery systems (R‐TWRS) are increasingly used to store abundant surface water in the LMRB. Over 700 R‐TWRS are currently used in rice producing areas of Arkansas. The confining clay layer that overlies the MRVAA in many locations limits rates of aquifer recharge. Locations where the confining layer is thin or non‐existent may provide opportunities for artificial (i.e., managed) recharge. A 10‐m deep excavation pit from a highway project provided an opportunity to measure infiltration rates of the uppermost section of the alluvial aquifer. Findings from this and other studies are used to demonstrate how conservation, off‐season rainfall capture and storage, and managed recharge are being investigated as means to reduce the on‐going decline of the alluvial aquifer that is both economically and ecologically important to the LMRB.

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Imazethapyr and imazapic runoff under continuous and intermittent irrigation of paddy rice

Cited by 36 publications

References 21 publications

Integrating Ecological Restoration of Agricultural Non-Point Source Pollution in Poyang Lake Basin in China

Integrating Ecological Restoration of Agricultural Non-Point Source Pollution in Poyang Lake Basin in China

Farmer adaptation of intermittent flooding using multiple-inlet rice irrigation in Mississippi

Aquifer Depletion in the Lower Mississippi River Basin: Challenges and Solutions

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