Effect of tillage systems and herbicides on weed emergence, weed growth, and grain yield in dry-seeded rice systems

Chauhan, Bhagirath Singh; Opeña, Jhoana L.

doi:10.1016/j.fcr.2012.08.016

Cited by 125 publications

(99 citation statements)

References 26 publications

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“…The weed species encountered in this study were similar in CT and CONV, therefore, tillage did not influence weed species composition. Chauhan and Opena (2012) also made similar conclusions that herbicidal requirements within tillage systems are similar.…”

Section: Discussionsupporting

confidence: 64%

The impact of tillage system and herbicides on weed density, diversity and yield of cotton (Gossipium hirsutum L.) and maize (Zea mays L.) under the smallholder sector

Mavunganidze¹,

Madakadze²,

Nyamangara³

et al. 2014

Crop Protection

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Section: Discussionsupporting

confidence: 64%

The impact of tillage system and herbicides on weed density, diversity and yield of cotton (Gossipium hirsutum L.) and maize (Zea mays L.) under the smallholder sector

Mavunganidze¹,

Madakadze²,

Nyamangara³

et al. 2014

Crop Protection

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show abstract

“…Therefore, there is a need to apply pre-emergence herbicides to achieve effective weed control. At present, a pre-emergence followed by one or two post-emergence herbicides are applied in dry-seeded rice systems [7,16]. Our study also found that oxadiazon as pre-emergence and bispyribac as post-emergence can control volunteer corn seedlings.…”

Section: Field Experimentssupporting

confidence: 51%

“…These results suggest that the tested herbicides can be used on rice. In fact, these herbicides are being used in dry-seeded rice to manage broad-spectrum of weed flora [7,8]. Tallest rice plants were observed in the nontreated control ( Table 1).…”

Section: Screenhouse Experimentsmentioning

confidence: 99%

Management of Volunteer Corn Seedlings in Dry-Seeded Rice

Chauhan¹,

Opeña²

2013

AJPS

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The demand for corn is increasing in Asia for feed and biofuel. It is grown in the rice-corn cropping system. During harvest of corn, however, seeds drop on the soil surface and become problems as volunteer corn seedlings in the subsequent dry-seeded rice crop, in which the suppressive effect of standing water is absent. A study was conducted in screenhouse and field conditions to evaluate the effect of rice herbicides on the management of volunteer corn seedlings. In the screenhouse experiment, bispyribac-sodium at 0.030 and 0.045 kg·ai·ha −1 provided complete control of corn seedlings. Fenoxaprop + ethoxysulfuron and penoxsulam + cyhalofop did not provide effective control of corn seedlings. In the field, the sole application of bispyribac and sequential application of oxadiazon and bispyribac suppressed corn biomass by 60% -82% and 89% -91%, respectively, as compared with the nontreated control. The results of this study demonstrate that, in the absence of other management strategies, volunteer corn seedlings in dry-seeded rice systems can be managed by using bispyribac-sodium.

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“…In a recent study in the Philippines, this combination of herbicides provided excellent weed control in dry-seeded rice sown after tillage or under zero-till conditions [6]. Oxadiazon is used as a preemergence herbicide in dry-seeded rice to control annual grasses and broadleaf weeds [6,17,18].…”

Section: Resultsmentioning

confidence: 99%

“…It was predicted that South and Southeast Asia may experience physical and economic water scarcities in the near future [4,5]. Therefore, to solve the problems of labor and water scarcities, farmers in many Asian countries are shifting toward seeded rice systems, especially mechanized sowing of dry-seeded rice [1,6].…”

Section: Introductionmentioning

confidence: 99%

Integrated Use of Herbicide and Crop Mulch in Suppressing Weed Growth in a Dry-Seeded Rice System

Chauhan¹,

Abugho²

2013

AJPS

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Dry-seeded rice production systems are increasing in many Asian countries because of labor and water scarcities. However, weeds are the main biological constraints in these systems. Herbicides are widely used to manage weeds but they do not provide effective weed control. The use of crop residue as mulch can suppress weed emergence and weed biomass but mulch alone does not provide effective weed control. The integrated use of herbicide and mulch, however, could provide more effective and sustainable weed control in dry-seeded rice systems. A study was conducted in two consecutive rice growing seasons to evaluate the combined effect of herbicide (treated and nontreated) and rice straw mulch (0, 2, and 4 t·ha −1 ) on weed growth and rice yield in a dry-seeded rice system. In the nontreated plots, weed biomass decreased with increases in mulch amounts, whereas weed biomass in the herbicide-treated plots was similar at different mulch amounts. Overall, herbicide treatments provided better weed control than the mulch treatments. In the nontreated plots, grain yield was similar at different mulch amounts, whereas grain yield in the herbicide-treated plots was greater when the field was mulched with 4 t·ha −1 of rice straw than with no mulch or mulched with only 2 t·ha −1 of rice straw. The results suggest that integrated use of mulch and herbicides can help weed control and increase crop yield in dry-seeded rice.

show abstract

Effect of tillage systems and herbicides on weed emergence, weed growth, and grain yield in dry-seeded rice systems

Cited by 125 publications

References 26 publications

The impact of tillage system and herbicides on weed density, diversity and yield of cotton (Gossipium hirsutum L.) and maize (Zea mays L.) under the smallholder sector

The impact of tillage system and herbicides on weed density, diversity and yield of cotton (Gossipium hirsutum L.) and maize (Zea mays L.) under the smallholder sector

Management of Volunteer Corn Seedlings in Dry-Seeded Rice

Integrated Use of Herbicide and Crop Mulch in Suppressing Weed Growth in a Dry-Seeded Rice System

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