Biodegradable Nano-Hydrogels in Agricultural Farming - Alternative Source For Water Resources

Vundavalli, Ramesh; Vundavalli, Suresh; Nakka, Mamatha; Rao, D. Srinivasa

doi:10.1016/j.mspro.2015.06.005

Cited by 91 publications

(46 citation statements)

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“…Rainfed agriculture supports four out of every ten Indians, and comprises 60% to 70% of total cropped area (85 million hectare), 48% of the area under food crops, and 68% of the area under non-food crops [2]. More than 75% of pulses, 66% of oilseeds, and 45% of cereals are grown under rainfed conditions [1].…”

Section: Introductionmentioning

confidence: 99%

Standardizing the Hydrogel Application Rates and Foliar Nutrition for Enhancing Yield of Lentil (Lens culinaris)

et al. 2020

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Lentil (Lens culinaris) is an important winter season annual legume crop known for its highly valued seed in human and animal nutrition owing to its high lysine and tryptophan content. Shortage of water during the crop growth period has become the major impediment for cultivation of pulses in rice fallow in particular. Under such conditions, the application of hydrogel can be a potential alternative to improve photosynthetic efficiency, assimilate partitioning, and increase growth and yield. A field experiment was conducted from November to February during 2015–16 to 2017–18 on clay loam soil that was medium in fertility and acidic in reaction (pH 5.4) at Central Agricultural University, Imphal, Manipur. The experiment was laid out in split plot design with three replications. There were three hydrogel levels in total in the main plot and foliar nutrition with five different nutrient sprays in sub-plots, together comprising 15 treatment combinations. The data pooled over three years, 2015–2018, revealed that application of hydrogel at 5 kg/ha before sowing recorded a significantly greater number of pods per plant (38.0) and seed yield (1032.1 kg/ha) over the control. Foliar application of nutrients over flower initiation and pod development had a positive effect on increasing the number of pods per plant eventually enhanced the seed yield of lentil. Foliar application of either 0.5% NPK or salicylic acid 75 ppm spray at flower initiation and pod development stages recorded significantly more pods per plant over other nutrient treatments. Further, the yield attributed improved because of elevated growth in plant. Significantly maximum seed yield (956 kg/ha) recorded in the NPK spray of 0.5% remained on par with salicylic acid 75 ppm (939 kg/ha) over the rest of the treatments.

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Section: Introductionmentioning

confidence: 99%

Standardizing the Hydrogel Application Rates and Foliar Nutrition for Enhancing Yield of Lentil (Lens culinaris)

et al. 2020

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“…For rainfed crops in semi-arid areas, VUNDAVALLI et al (2015) found the use of biodegradable nano-hydrogels coated with silver nitrate to have an excellent water retention capacity. Likewise, Montesano et al (2015) reported good results for the water retention capacity and high biodegradable power of a cellulose-based hydrogel, while Hassan and El-Rehim (2006), testing the functionality of a sodium alginate hydrogel prepared with ionizing radiation, found good water-retentive and biodegradability characteristics.…”

Section: Studies In the Advancement And Improvement Of Hydrogelsmentioning

confidence: 99%

“…Em cultivos de sequeiro, Vundavalli et al (2015) indicaram o uso de nano-hidrogéis biodegradáveis revestidos por nitrato de prata com excelente capacidade de retenção de água. Da mesma forma, Montesano et al (2015) encontraram bons resultados quanto à capacidade de retenção de água e alto poder biodegradável de um hidrogel confeccionado à base de celulose.…”

Section: Avanços Nos Estudos E Aperfeiçoamento Dos Hidrogéisunclassified

Hydrogels in Brazilian Agriculture

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Chagas

et al. 2017

AGRO@MBIENTE ON-LINE

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Abstract:The rational use of water is essentual as it is a finite resource. Consequerntly, studies of methids that minimize water use water are essential. As a result, agricultural hydrogels have been extensively tested in as a means of promoting agriculture improvements because of their water-and nutriente-retention characteristics. However, even though hydrogels are used in several sectors of Brazilian agriculture, there are still very few studies on their applications, the best methods and the quantities to be used. Consequently, there is a need for research into the applicability of this technology in Brazil, so that future research needs can be identified and appropriate decisions made at the production level. Therefore, the aim of this study was to collate currently available information on the applicability of agricultural hydrogels in Brazilian agriculture. Over the last decade, forestry is the sector in Brazil that has most studied and used hydrogels, but others such as fruit-and coffeegrowing have also been involved. The method of applying the polymer in granules directly mixed-in with growth substrates is the most used in the production of seedlings. However, use of hydrated gel at planting sites has also been explored. While synthetic hydrogels are most commonly used, those made of natural materials have great potential due to the low preparation costs and their in-soil biodegradability. The quantities of hydrogel used vary according to the target species, application method and objective.Key words: Water sustainable use. Hydro absorvent polymer. Application. Agricultural cultures.Resumo: A utilização racional da água faz-se necessária uma vez que esse recurso é finito, assim, estudos sobre a produção e minimização do uso da água são essenciais. A partir disso, os hidrogéis agrícolas vêm sendo amplamente testados na agricultura por promoverem benfeitorias às plantas pelas suas características de retenção de água e nutrientes. No entanto, mesmo sendo utilizados em diversos ramos da agricultura brasileira, estudos quanto aos métodos de aplicação e às quantidades utilizadas ainda são escassos, justificando a necessidade de pesquisas que elucidem a aplicabilidade dessa tecnologia, para assim gerar informações que sustentem decisões precisas no nível produtivo e experimental. Portanto, objetivou-se com este trabalho compilar as principais informações atuais quanto à aplicabilidade dos hidrogéis agrícolas na agricultura brasileira. A silvicultura é o setor que mais vem estudando e utilizando o uso dos polímeros hidrorretentores nos últimos 10 anos no Brasil, porém, setores como a fruticultura e a cafeicultura também vêm se destacando. O método de aplicação do polímero em grânulos em mistura direta com substratos é o mais utilizado na produção de mudas, todavia, a utilização do gel hidratado no local de plantio apresenta-se como uma alternativa promissora à agricultura brasileira. Os hidrogéis sintéticos são os mais utilizados, no entanto, os constituídos por materiais naturais têm grande potencial em funçã...

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“…Various types of hydrogels and nanoclay-polymer composites have been applied to increase the soil moisture content and to improve the water-holding capacity of soil during the cultivation season. 27 Also, fertiliser loaded superabsorbent polymer composites, graphene quantum dots, and nanoclays, act as slow releasing agents and potential carriers to manage mineral nutrient release and plant growth regulators. 28 Engineered nanoparticles also have significant advantage in improving crop protection and pesticide residual detection.…”

Section: Introductionmentioning

confidence: 99%

Recent developments in nanotechnology transforming the agricultural sector: a transition replete with opportunities

et al. 2017

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The applications and benefits of nanotechnology in the agricultural sector have attracted considerable attention, particularly in the invention of unique nanopesticides and nanofertilisers. The contemporary developments in nanotechnology are acknowledged and the most significant opportunities awaiting the agriculture sector from the recent scientific and technical literature are addressed. This review discusses the significance of recent trends in nanomaterial-based sensors available for the sustainable management of agricultural soil, as well as the role of nanotechnology in detection and protection against plant pathogens, and for food quality and safety. Novel nanosensors have been reported for primary applications in improving crop practices, food quality, and packaging methods, thus will change the agricultural sector for potentially better and healthier food products. Nanotechnology is well-known to play a significant role in the effective management of phytopathogens, nutrient utilisation, controlled release of pesticides, and fertilisers. Research and scientific gaps to be overcome and fundamental questions have been addressed to fuel active development and application of nanotechnology. Together, nanoscience, nanoengineering, and nanotechnology offer a plethora of opportunities, proving a viable alternative in the agriculture and food processing sector, by providing a novel and advanced solutions. © 2017 Society of Chemical Industry.

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Biodegradable Nano-Hydrogels in Agricultural Farming - Alternative Source For Water Resources

Cited by 91 publications

References 7 publications

Standardizing the Hydrogel Application Rates and Foliar Nutrition for Enhancing Yield of Lentil (Lens culinaris)

Standardizing the Hydrogel Application Rates and Foliar Nutrition for Enhancing Yield of Lentil (Lens culinaris)

Hydrogels in Brazilian Agriculture

Recent developments in nanotechnology transforming the agricultural sector: a transition replete with opportunities

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