A characterisation of rice pests and quantification of yield losses in the rice-wheat system of India

Savary, Serge; Srivastava, R. K.; Singh, H. M.; Elazegui, F. A.

doi:10.1016/s0261-2194(96)00108-1

Cited by 43 publications

(23 citation statements)

References 6 publications

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“…Similarly, protein concentration in the 2009 harvest varied from 7.96% (hand weeded plots) to 6.54% (non-weeded plots). The amylose concentration of grain from the hand weeded plots was 22.31% in 2008 and 22.23% in 2009; from the hoed plots the proportions Days after sowing Weeds are a major constraint for DSR productivity, having a greater impact on yield than other pests (Savary et al, 1997;Chauhan et al, 2011). The various weed control measures had a positive effect on weed biomass accumulation, with four times of hand weeding proving to be the most effective method.…”

Section: Resultsmentioning

confidence: 99%

The Effect of Different Weed Management Strategies on the Growth and Yield of Direct-Seeded Dry Rice (Oryza sativa)

Muhammad

Sajid

et al. 2016

Planta daninha

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-Weed management is a primary concern in direct seeded rice (DSR) cropping because weed growth becomes a major constraint on crop yield. A two year field study was set up to evaluate the effect of various weed control measures on crop growth, grain yield and grain quality of DSR. The experiment involved five different weed control measures: hand weeding, hoeing, inter-row tine cultivation, inter-row spike hoeing and herbicide treatment (Nominee 100 SC). The extent of weed control (compared to a non-weeded control) ranged from 50-95%. The highest crop yield was obtained using hand weeding. Hand weeding, tine cultivation and herbicide treatment raised the number of fertile rice tillers formed per unit area and the thousand grain weight. Tine cultivation provided an effective and economical level of weed control in the DSR crop.Keywords: herbicides, direct seeded rice, grain yield, tine cultivator. Palavras-chave: herbicidas, arroz em plantio direto, rendimento de grãos, cultivo com forcado. RESUMO

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Section: Resultsmentioning

confidence: 99%

The Effect of Different Weed Management Strategies on the Growth and Yield of Direct-Seeded Dry Rice (Oryza sativa)

Muhammad

Sajid

et al. 2016

Planta daninha

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“…Weeds are notorious yield reducers that are, in many situations, economically more important than insects, fungi, or other pest organisms [1,2]. The yield loss due to weeds is almost always caused by an assemblage of different weed species, and these can differ substantially in competitive ability [3].…”

Section: Introductionmentioning

confidence: 99%

A Case ofCyperusspp. andImperata cylindricaOccurrences on Acrisol of the Dahomey Gap in South Benin as Affected by Soil Characteristics: A Strategy for Soil and Weed Management

Koné

Amadji

Touré

et al. 2013

Applied and Environmental Soil Science

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Because of the limiting efficacy of common weed control methods on Cyperus spp. and Imperata cylindrica their occurrences in tropical agroecologies and the effect of soil properties in suppressing these species were investigated in south Benin (Cotonou), a typical ecology of the Dahomey gap. Weeds and soil samples were collected twice early and later in the rainy season in 2009 at four topographic positions (summit, upper slope, middle slope, and foot slope). Sampling was done according to Braun-Blanquet abundance indices (3 and 5) and the absence (0) of Cyperus and Imperata in a quadrat, respectively. The relationship between their respective abundances and soil parameters (texture, C, N, P, K, Na, Ca, Mg, and Fe) was explored. Weed occurrence was less related to soil texture, and Imperata growth was more influenced by soil nutrients (K, Ca, and Fe) than Cyperus spp. Soil cation ratios of K : Mg and Ca : Mg were the main factors that could be changed by applying K and/or Mg fertilizers to reduce Cyperus and/or Imperata occurrence. Maintaining high Fe concentration in soil at hillside positions can also reduce Imperata abundance, especially in the Dahomey gap.

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“…5 Weeds are notorious yield reducers that are, in many situations, economically more important than insects, fungi or other pest organisms. 6,7 Weeds have inhibitory effect on crops. 8,9 The growth of most of the crops involves a constant battle with the weeds in addition to insect pests and diseases.…”

Section: Productivity Constraints and Weed Problemmentioning

confidence: 99%

Effects of herbicide applications in wheat fields

Varshney

Hayat

Alyemeni

et al. 2012

Plant Signaling & Behavior

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A characterisation of rice pests and quantification of yield losses in the rice-wheat system of India

Cited by 43 publications

References 6 publications

The Effect of Different Weed Management Strategies on the Growth and Yield of Direct-Seeded Dry Rice (Oryza sativa)

The Effect of Different Weed Management Strategies on the Growth and Yield of Direct-Seeded Dry Rice (Oryza sativa)

A Case ofCyperusspp. andImperata cylindricaOccurrences on Acrisol of the Dahomey Gap in South Benin as Affected by Soil Characteristics: A Strategy for Soil and Weed Management

Effects of herbicide applications in wheat fields

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