Weed control in a pigeon pea–wheat cropping system

Bidlack, James E.; Middick, Andy; Shantz, Delmar; MacKown, Charles T.; Williams, R. D.; Rao, Srinivas C.

doi:10.1016/j.fcr.2005.05.005

Cited by 9 publications

(6 citation statements)

References 25 publications

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“…Soltani et al (2008) reported that application of bentazon once or twice at 840 g • ha -1 had no marked effect on the shoot weight of pinto bean. An increase in the above ground dry matter of winter wheat due to the good weed control from the sethoxydim application, was noted by Bidlack et al (2006) as compared with the untreated control. Qasem and Foy (2006) reported that application of oxadiazon and oxyfluorfen increased shoot dry weight of Syrian marjoram L. Reduction in the chlorophyll content of sunflower, maize, and other plants by oxadiagryl application has been reported (Sandmann and Boger 1983;Nethra and Jagannath 2011).…”

Section: Chlorophyll Content and Morpho-physiological Traitsmentioning

confidence: 90%

Valerian (Valeriana officinalis L.) tolerance to some post-emergence herbicides

Monjezi¹,

Razmjo²,

Karimmojeni³

2015

Journal of Plant Protection Research

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Valerian (Valeriana officinalis L.) is a medicinal plant, but its cultivation is restricted by weed competition. Therefore, three rates (0.75X, 1X, and 1.25X, where X is equal to the recommended dose of haloxyfop-R (methyl ester), sethoxydim, oxadiargyl, bentazon, oxadiazon, and oxyfluorfen) were applied at the 3-4 leaf stages to valerian plants. This application was done to select the herbicide type and rate for post-controlling broadleaf and grasses weeds in this species. Herbicide injury, Soil-Plant Analyses Development (SPAD) reading, number of leaves per plant, stem diameter, and fresh and dry weights were determined 10, 20, and 30 days after herbicide application. Oxyfluorfen application caused the most herbicide injury followed by bentazon. Injury increased as the rate and the days after application increased. Oxadiazon only caused significant damage 30 days after application under all three rates. Other treatments showed no marked injuries under any rate or date after application, as compared with the control. Effects on other measured traits depended on the trait, herbicide, and herbicide rate. The highest SPAD, leaf number, shoot diameter, fresh weight and dry weight, was recorded under application of 30 mg a.i. ∙ kg-1soil oxadiargyl and 90 mg a.i. ∙ kg-1soil oxadiazon, 81 mg a.i. ∙ kg-1soil haloxyfop-R, 37.5 mg a.i. ∙ kg-1soil oxadiargyl, 22.5 mg a.i. ∙ kg-1soil oxadiargyl, 81 mg a.i. ∙ kg-1soil haloxyfop-R, and 81 mg a.i. ∙ kg-1soil haloxyfop-R, respectively. To sum up, the results showed that sethoxydim, oxadiargyl, and haloxyfop-R produced no significant symptoms of phytotoxicity or reduction of measured traits. This means that oxadiargyl, haloxyfop-R, and sethoxydim may be used safely for weed control of valerian at the rates used in this experiment under similar conditions.

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Section: Chlorophyll Content and Morpho-physiological Traitsmentioning

confidence: 90%

Valerian (Valeriana officinalis L.) tolerance to some post-emergence herbicides

Monjezi¹,

Razmjo²,

Karimmojeni³

2015

Journal of Plant Protection Research

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“…Charles (2006) also observed pigeonpea injury with acifluorfen in Australia, totaling 3 on a scale of 5 in a phytotoxicityevaluation rating system. Bidlack et al (2006) found that imazapic at 0.25 kg ai ha −1 applied POST provided effective grass and broadleaf weed control in pigeonpea, although temporary chlorosis and stunting was observed in the crop. We did not observe any injury to pigeonpea crop after the POST application of imazapic 0.10 kg ai ha −1 (Table 3).…”

Section: Resultsmentioning

confidence: 97%

“…Recently, due to the high demand in the international market, pulse growers and processors have shown increased interest in promoting pigeonpea production in Australia. Weeds are one of the major factors that could affect the productivity of pigeonpea (Bidlack et al 2006;Goyal et al 1991;Mahajan et al 2019). Yield loss in pigeonpea may vary from 32% to 90% if weeds are not controlled (Saxena and Yadav 1975;Talnikar et al 2008;Vaishya and Khan 1989).…”

Section: Introductionmentioning

confidence: 99%

“…There is a need to find herbicide options to address seasonlong weed control. Herbicides such as imazapic, bentazon, and acifluorfen have been tested for weed control in pulses, including pigeonpea (Bidlack et al 2006;Grichar 2008;Singh and Sekhon 2013;Vaishya and Khan 1989); however, they have not been tested for pigeonpea in Australian environment. To provide season-long weed control and enhanced yield in pigeonpea, there is a need to evaluate PRE and POST herbicides in this relatively new crop.…”

Section: Introductionmentioning

confidence: 99%

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Horse purslane (Trianthema portulacastrum) control in pigeonpea with PRE and POST herbicides

2020

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Pigeonpea has great potential as a profitable summer legume rotational crop in cereal farming systems of subtropical Australia. Pigeonpea requires season-long weed control, but options for controlling broadleaf weeds in pigeonpea with POST herbicides are limited. The objective of this study was to evaluate the performance of different herbicides (PRE: pendimethalin; POST: acifluorfen, bentazon, and imazapic) applied singly or in sequence for horse purslane control in pigeonpea and their impact on pigeonpea yield. Field experiments were conducted in 2017 and 2018 at Gatton, Australia. Pendimethalin applied PRE at 1.14 kg ai ha−1 reduced horse purslane biomass by 87% and 92% and produced 32% and 105% higher grain yield compared with the nontreated control in 2017 and 2018, respectively. Imazapic applied POST at 0.10 kg ai ha−1 reduced horse purslane biomass by 79% and 82% and increased grain yield by 60% and 88% compared with the nontreated control in 2017 and 2018, respectively. Acifluorfen applied POST (0.34 and 0.42 kg ai ha−1) caused 16% to 48% injury to pigeonpea at 45 d after treatment. Control of horse purslane ranged from 87% to 92% (biomass reduction) with pendimethalin applied PRE at 1.14 kg ai ha−1 and was comparable with pendimethalin applied PRE at 0.91 kg ai ha−1 in the sequential application, and imazapic at 0.08 kg ai ha−1 or bentazon at 0.96 kg ai ha−1. The study findings suggest if farmers miss the PRE application of pendimethalin or are unable to achieve season-long weed control, POST application of imazapic is an alternate. This research provided herbicide options for control of horse purslane in pigeonpea that could be used in rotations for reducing the selection pressure of weeds.

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“…Therefore, weeds must be controlled during this period for obtaining high seed yields (Singh and Sekhon, 2013). Bidlack et al (2006) also reported that post emergence application of herbicides may help in alleviating weed problem. The use of herbicide significantly increased the net return and benefit cost (B:C) ratio as compared to control.…”

Section: Resultsmentioning

confidence: 99%

Impact of biotic stress management technologies on yield, economics and energy indices of pigeon pea (Cajanus cajan) grown in Central India

Singh

Tomar

Singh

2018

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The major biotic stresses limiting productivity of pigeon pea includes weeds and various diseases like wilt, sterility mosaic virus, blight and pests as pod-borer, pod-fly in field and bruchids in field as well as in storage. Results of on farm trials revealed significant impact of adoption of management techniques of biotic stresses on seed yield, net profit and benefit cost ratio as compared to existing practices of pigeon pea cultivation. Scientific management of weed, pod borer and wilt was increased in seed yield by 26.2, 46.1 and 12.2%, while saving of seed by 23.6% from bruchids compared with existing practice, respectively. Among biotic management practices, higher additional cost was observed on weed management (Rs. 2,974 ha -1 ) and it was minimum on pod borer management (Rs. 798 ha -1 ) compared with existing practices. Accordingly, additional maximum net returns were obtained with pod borer (Rs. 24,805 ha -1 ) and minimum with wilt (Rs. 9,401 ha -1 ). Interventions of biotic stresses management were significantly influenced the output, use-efficiency, productivity and net gains of energy compared to existing practices. Maximum additional net energy gain was in management of weed (25,649 MJ ha -1 ) followed by pod borer (13,349 MJ ha -1 ), bruchid (8,390 MJ ha -1 ) and wilt (5,325 MJ ha -1 ). After harvest of second crop of pigeon pea, organic carbon, bulk density, infiltration rate and available N, P, K, S and Zn were significantly increased with weed and wilt management over existing practice. Management of biotic stresses by proper technologies increased the productivity of pigeon pea of three folds (2.12 to 2.33 t ha -1 ) compared to its average productivity of India and also increased economic benefits and energy outcomes.

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Weed control in a pigeon pea–wheat cropping system

Cited by 9 publications

References 25 publications

Valerian (Valeriana officinalis L.) tolerance to some post-emergence herbicides

Valerian (Valeriana officinalis L.) tolerance to some post-emergence herbicides

Horse purslane (Trianthema portulacastrum) control in pigeonpea with PRE and POST herbicides

Impact of biotic stress management technologies on yield, economics and energy indices of pigeon pea (Cajanus cajan) grown in Central India

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