Rice husk ash and imidazole application enhances silicon availability to rice plants and reduces yellow stem borer damage

Jeer, Mallikarjuna; Suman, K.; Maheswari, T. Uma; Voleti, S. R.; Padmakumari, A. P.

doi:10.1016/j.fcr.2018.05.002

Cited by 35 publications

(17 citation statements)

References 36 publications

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“…Thus, these results corroborate the hypothesis that Si may increase the content of chlorophyll in the leaves of rice plants may favor the photosynthetic process (Epstein & Bloom, 2006;Jeer et al, 2018). However, when 30 kg ha -1 of Si was applied, it was not possible to reach the maximum point of chlorophyll content, even with the application of 200 kg ha -1 of N ( Figure 3A) suggesting that the application of too much Si can attenuate the increase of the chlorophyll content in the rice leaves, and this phenomenon can also explain, among other factors, the reason for the lower incidence of sucking insects in the rice leaf when applied Si, because according to Gomes et al (2011), N fertilization in high doses, besides physiological disorders in the plant, increases the incidence of insect pests with sucking food habit due to the high activity of the sap flow.…”

Section: Discussionsupporting

confidence: 87%

Can the Nitrogen and Silicon Increase the Productivity and Yield in Rice Crops in the Rainfed Environment?

Jardim¹,

Biesdorf²,

Barros³

et al. 2019

JAS

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There is much doubt as to whether, in fact, the combination of nitrogen and silicate fertilization can increase yield and post-harvest yield in rainfed rice. The objective of this study was to investigate the effect of silicate and nitrogen fertilization on the development, quality, yield and post-harvest yield of rice cultivated in the rainfed environment. A field experiment was carried out in the 2014/2015 harvest in a 4 × 4 randomized block design with four replications. The first factor corresponded to the nitrogen doses (0; 50; 100 and 200 kg ha-1 of N), in the form of urea, and the second factor at silicon doses (0; 7.5; 15 and 30 kg ha-1 Si), in the form of calcium silicate. Si affected the chlorophyll content at 45 days after sowing (DAS) suggesting being important in floral differentiation. The increase in N doses caused higher levels of chlorophyll in rice leaves at 55, 65 and 85 DAS, regardless of whether they supplied Si. Plant height, number of tillers, weight of one thousand seeds, total grain yield and of whole grains were not influenced by the Si supply. However, Si doses reduced the yield of broken grains, thus reducing postharvest losses and, consequently, improving grain quality in the beneficiation process.

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Section: Discussionsupporting

confidence: 87%

Can the Nitrogen and Silicon Increase the Productivity and Yield in Rice Crops in the Rainfed Environment?

Jardim¹,

Biesdorf²,

Barros³

et al. 2019

JAS

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“…Although it may not be essential [3,10], a shortage of silica has a tremendous negative effect on rice plants, and its presence benefits the plants. Silica provides rice plants with disease control [2,10,11], resistance to drought [2,12] and salt [2,13], and metal toxicity control [2,10,14].…”

Section: Rice Plants and Silicamentioning

confidence: 99%

Study of the feasibility of a rice husk recycling scheme in Japan to produce silica fertilizer for rice plants

Sekifuji

Tateda

2019

Sustain Environ Res

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Rice husks are resources that should be recycled in a sustainable way, thus creating a win-win relationship between stakeholders, consumers, and society. Silica is a very valuable material and used for many industrial purposes. A Rice husk contains 20% of silica by weight, and can therefore be considered a biological silica ore. To recycle rice husks in a sustainable way, the ash produced from burning rice husks must also be used as a resource. In this study, based on the concept that rice husk ash should be recycled as silica fertilizer, we compared the economic feasibility of two recycling systems: Heat recovery from hot water and generation of electricity from hot water. Questionnaires were also conducted regarding farmers' expectations of silica fertilizer made from rice husk ash. We found that the system involving heat recovery from hot water was sustainable; however, generating electricity from hot water was cost-prohibitive. It must be noted that the validity of this result might be limited to Japan, where electricity generation is highly regulated. On the other hand, areas that already struggle to dispose of their rice husks should consider using rice husks to produce energy.

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“…In slugs, increased silicon content was suggested to cause reduced consumption [42,43]. This may be due to decreased leaf digestibility or wear on the feeding apparatus, with similar effects observed in other invertebrates [41][42][43]. However, the Golden Apple Snail, Pomacea canaliculata, showed no feeding aversion to plants with higher silicon content, indicating that an increased silicon content may not affect feeding in all mollusc species and that reduced feeding may be due to other factors [44].…”

Section: Discussionmentioning

confidence: 82%

“…The main materials used to produce the novel coating were silica-based products (S. Newman, personal communication). Increased silica or silicon content has been observed to cause general health problems in animals, including molluscs [37][38][39][40][41]. In slugs, increased silicon content was suggested to cause reduced consumption [42,43].…”

Section: Discussionmentioning

confidence: 99%

Listening to Slugs: Acceptability and Consumption of Molluscicide Pellets by the Grey Field Slug, Deroceras reticulatum

Silva

Chesmore

Smith

et al. 2021

Insects

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Gastropod damage to crop plants has a significant economic impact on agricultural and horticultural industries worldwide, with the Grey Field Slug (Deroceras reticulatum (Müller)) considered the main mollusc pest in the United Kingdom and in many other temperate areas. The prevailing form of crop protection is pellets containing the active ingredient, metaldehyde. Metaldehyde can cause paralysis and death in the mollusc, depending on the amount ingested. The paralysing effects may result in reduced pellet consumption. A greater understanding of metaldehyde consumption may reveal an area that can be manipulated using novel molluscicide formulations. Novel pellet types included commercial metaldehyde pellets coated so that metaldehyde is released more slowly. In both laboratory and arena trials, an audio sensor was used to record individual slugs feeding on a variety of pellet types, including commercially available toxic pellets (metaldehyde and ferric phosphate) and novel metaldehyde formulations. The sensor was used to record the length of each bite and the total number of bites. There was no significant difference in the length of bites between pellet types in laboratory trials. Novel pellets were not consumed more than commercial pellet types. Commercial pellet types did not differ in consumption.

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Rice husk ash and imidazole application enhances silicon availability to rice plants and reduces yellow stem borer damage

Cited by 35 publications

References 36 publications

Can the Nitrogen and Silicon Increase the Productivity and Yield in Rice Crops in the Rainfed Environment?

Can the Nitrogen and Silicon Increase the Productivity and Yield in Rice Crops in the Rainfed Environment?

Study of the feasibility of a rice husk recycling scheme in Japan to produce silica fertilizer for rice plants

Listening to Slugs: Acceptability and Consumption of Molluscicide Pellets by the Grey Field Slug, Deroceras reticulatum

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