Evaluating the effect of irrigation water management techniques on (taro) madumbe (Colocasia esculenta (L.) Schott) grown with anaerobic filter (AF) effluent at Newlands, South Africa

The need for the optimal use of land, without a yield penalty, in urban and peri-urban (UP) settlements is vital. This study investigated the effect of intercropping madumbe and rice with respect to yield and land productivity when irrigated with anaerobic baffled reactor (ABR) effluent under different irrigation water management techniques. It was hypothesized that intercropping under different irrigation water management techniques has no effect on the yield and land productivity. Field trials were conducted in the 2017 and 2018 cropping seasons with ABR effluent (without fertilizer) at the Newlands Mashu Experimental Site, Newlands East, Durban, South Africa. A randomized complete block design with 3 replications; cropping treatments of sole madumbe, sole rice and madumbe + rice (intercrop) and irrigation treatments of alternate wetting and drying (AWD), continuous flood irrigation (CFI) and wetting without flooding (WWF) was used. Growth and yield parameters at harvest were determined. Thereafter, land equivalent ratio (LER) was calculated to evaluate the productivity of the intercrop. The effect of intercropping was significant (P < 0.05) on the total number of irrigation events and total water use. There was a significant reduction (P < 0.05) in plant heights of both madumbe and rice at intercrop. However, the effect on plant height for treatment CFI was positive but not significant (P > 0.05) for both seasons. A significant (P < 0.05) reduction also occurred in the number of madumbe leaves/plant, and panicles/plant and tillers/plant for rice. Intercropping significantly reduced (P < 0.05) madumbe corm and rice grain yield over the two seasons relative to sole cropping. LER showed that intercropping madumbe with rice was not more productive (LER < 1) than sole cropping of madumbe. It was concluded that over the two-season period, intercropping madumbe and rice do not yield appreciably under any of the three irrigation management techniques applied and the study hypothesis is thus rejected.

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Effect of intercropping madumbe (Colocasia esculenta) and rice (Oryza sativa L.) on yield and land productivity under different irrigation water management techniques with effluent water

Water SA ◽

10.17159/wsa/2020.v46.i2.8235 ◽

2020 ◽

Vol 46 (2 April) ◽

Author(s):

TI Busari ◽

A Senzanje ◽

AO Odindo ◽

CA Buckley

Keyword(s):

Water Management ◽

Irrigation Water ◽

Block Design ◽

Irrigation Management ◽

Growth And Yield ◽

Rice Grain ◽

Land Productivity ◽

Irrigation Water Management ◽

Sole Cropping ◽

Management Techniques

The need for the optimal use of land, without a yield penalty, in urban and peri-urban (UP) settlements is vital. This study investigated the effect of intercropping madumbe and rice with respect to yield and land productivity when irrigated with anaerobic baffled reactor (ABR) effluent under different irrigation water management techniques. It was hypothesized that intercropping under different irrigation water management techniques has no effect on the yield and land productivity. Field trials were conducted in the 2017 and 2018 cropping seasons with ABR effluent (without fertilizer) at the Newlands Mashu Experimental Site, Newlands East, Durban, South Africa. A randomized complete block design with 3 replications; cropping treatments of sole madumbe, sole rice and madumbe + rice (intercrop) and irrigation treatments of alternate wetting and drying (AWD), continuous flood irrigation (CFI) and wetting without flooding (WWF) was used. Growth and yield parameters at harvest were determined. Thereafter, land equivalent ratio (LER) was calculated to evaluate the productivity of the intercrop. The effect of intercropping was significant (P < 0.05) on the total number of irrigation events and total water use. There was a significant reduction (P < 0.05) in plant heights of both madumbe and rice at intercrop. However, the effect on plant height for treatment CFI was positive but not significant (P > 0.05) for both seasons. A significant (P < 0.05) reduction also occurred in the number of madumbe leaves/plant, and panicles/plant and tillers/plant for rice. Intercropping significantly reduced (P < 0.05) madumbe corm and rice grain yield over the two seasons relative to sole cropping. LER showed that intercropping madumbe with rice was not more productive (LER < 1) than sole cropping of madumbe. It was concluded that over the two-season period, intercropping madumbe and rice do not yield appreciably under any of the three irrigation management techniques applied and the study hypothesis is thus rejected.

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The impact of irrigation water management techniques on the performance of rice using treated wastewater reuse in Durban, South Africa

Water Science & Technology Water Supply ◽

10.2166/ws.2019.031 ◽

2019 ◽

Vol 19 (6) ◽

pp. 1604-1611 ◽

Cited By ~ 1

Author(s):

Isiaka Toyin Busari ◽

Aidan Senzanje ◽

Alfred O. Odindo ◽

Chris A. Buckley

Keyword(s):

Water Management ◽

Irrigation Water ◽

Water Reuse ◽

Water Productivity ◽

Wastewater Reuse ◽

Treated Wastewater ◽

Irrigation Water Management ◽

Treated Wastewater Reuse ◽

Management Techniques ◽

The Impact

Abstract The need to cultivate effluent-irrigated rice is paramount and synonymous with treated wastewater reuse, recycling and water resources management. A trial in a peri-urban set-up with a low-cost decentralized wastewater treatment system (DEWATS) was carried out in the 2017 and 2018 cropping seasons to assess the effect of irrigation water reuse management techniques on the yield and water productivity of rice. It was hypothesized that anaerobic baffled reactor (ABR) irrigation water management does not have an effect on the yield of peri-urban grown rice. The impacts of irrigation water management techniques were very significant (P < 0.001) on the number of irrigation events, amount of irrigation and daily water balance. The impact was not significant (P > 0.05) on the tiller numbers per plant; it was however significant (P < 0.05) on the panicle numbers per plant. The effects were not significant (P > 0.05) on the plant height but significant (P < 0.05) on the yield rice for both trials. The effect was also significant (P < 0.05) on water productivity. The result proved that the hypothesis be rejected. It could be concluded that significant potential exists for applying wastewater reuse for non-drinking applications such as irrigation.

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OPTIMIZING IRRIGATION WATER MANAGEMENT PRACTICES TO IMPROVE WATER PRODUCTIVITY.

Journal of Soil Sciences and Agricultural Engineering ◽

10.21608/jssae.2007.201270 ◽

2007 ◽

Vol 32 (5) ◽

pp. 3997-4015

Author(s):

M. E. Shawky ◽

G. A. Bakeer ◽

F. Gomaa ◽

A. A. Salah

Keyword(s):

Water Management ◽

Irrigation Water ◽

Management Practices ◽

Water Productivity ◽

Irrigation Water Management

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Yield response, water productivity, and seasonal water production functions for maize under deficit irrigation water management in southern Taiwan

Plant Production Science ◽

10.1080/1343943x.2017.1365613 ◽

2017 ◽

Vol 20 (4) ◽

pp. 353-365 ◽

Cited By ~ 6

Author(s):

Geneille E. Greaves ◽

Yu-Min Wang

Keyword(s):

Water Management ◽

Irrigation Water ◽

Deficit Irrigation ◽

Water Productivity ◽

Production Functions ◽

Yield Response ◽

Water Production ◽

Irrigation Water Management ◽

Southern Taiwan

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Irrigation management techniques with anaerobic baffled reactor effluent: effect on rice growth, yield and water productivity

Water Practice & Technology ◽

10.2166/wpt.2019.002 ◽

2019 ◽

Vol 14 (1) ◽

pp. 88-100 ◽

Cited By ~ 1

Author(s):

T. I. Busari ◽

A. Senzanje ◽

A. O. Odindo ◽

C. A. Buckley

Keyword(s):

Block Design ◽

Water Productivity ◽

Irrigation Management ◽

Growth Yield ◽

Growth And Yield ◽

Irrigation Amount ◽

Area Index ◽

Anaerobic Baffled Reactor ◽

Management Techniques ◽

Irrigation Treatments

Abstract The study evaluated the effect of irrigation management techniques using anaerobic baffled reactor (ABR) effluent on the growth and yield of rice. It was hypothesized that irrigation techniques with ABR effluent have a significant effect on the growth, yield of rice, water productivity (WP) and water balance (WB). The experimental setup was a randomized complete block design for 2017 and 2018 cropping seasons, three treatments each with three replications. The treatments were alternating wetting and drying (AWD), continuous flooding irrigation (CFI) and wetting without flooding (WWF). The effect of irrigation management techniques was significant (P < 0.05) for the 2017 season but insignificant (P > 0.05) in 2018 on the yield. The effect of irrigation treatments on WP was significant (P < 0.05). The effects were not significant (P > 0.05) on the plant height, leave area index (LAI) and number of tillers per plant. However, the effect was significant (P < 0.05) on the number of panicles per plant. The effects of irrigation treatments were significant (P < 0.05) on number of irrigation, amount of irrigation, total water use and daily field WB. In conclusion, the result proved the acceptability of the hypothesis. AWD irrigation with ABR effluent should be encouraged among rice farmers.

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Growth stage sensitivity of wheat to irrigation water salinity

Journal of the Bangladesh Agricultural University ◽

10.3329/jbau.v11i1.18226 ◽

2014 ◽

Vol 11 (1) ◽

pp. 147-152 ◽

Cited By ~ 2

Author(s):

MA Mojid ◽

MS Mia ◽

AK Saha ◽

SS Tabriz

Keyword(s):

Irrigation Water ◽

Water Productivity ◽

Grain Filling ◽

Growth And Yield ◽

Water Salinity ◽

Growth Stages ◽

Positive Contribution ◽

Area Index ◽

Booting Stage ◽

Irrigation Water Salinity

The effects of irrigation water salinity (12 dS m?1), imposed at maximum tillering (35?40 days after sowing, DAS) or booting (50?60 DAS) or grain filling (75?85 DAS) stage of wheat, on growth and yield of the crop was demonstrated. The experiment comprised four treatments I1: irrigation by fresh water (FW) at all three growth stages (control), I2: irrigation by saline water (SW) at maximum tillering stage and by FW at other stages, I3: irrigation by SW at booting stage and by FW at other stages, and I4: irrigation by SW at grain filling stage and by FW at other stages. The experiment was set in a randomized complete block with three replications. Wheat was grown under three irrigations (each of 3 cm) and recommended fertilizer doses (120 kg N, 32 kg P, 62 kg K, 20 kg S, 3 kg Zn and 1 kg B ha?1). Salinity of irrigation water imposed, separately, at the three growth stages did not impart significant (p = 0.05) negative influence on plant height, spike density, spike length, spikelets and grains per spike and 1000-grain weight. It, however, significantly hindered leaf area index (LAI), above ground dry matter (ADM), grain and straw yields, grain-straw ratio and water productivity of the crop. The least grain (3.622 t ha?1) and straw (5.772 t ha?1) yields, LAI (1.24 and 2.18 at 50 and 70 DAS, respectively), ADM (0.80, 4.78 and 7.66 t ha?1) and water productivity (186.5 and 297.3 kg ha?1 cm?1) obtained under I3 implied that salinity of irrigation water imposed at booting stage exerted the maximum retarding effects on the growth and yield of wheat. Grain yield decreased by 13.4% in I3 over the control, I1. An increase in grain and biomass yields by 14.3 and 11.9%, respectively under I2 over I1 demonstrated a positive contribution of irrigation water salinity imposed at maximum tillering stage of wheat. DOI: http://dx.doi.org/10.3329/jbau.v11i1.18226 J. Bangladesh Agril. Univ. 11(1): 147-152, 2013

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