Azolla biofertilizer for improving low nitrogen use efficiency in an intensive rice cropping system

Yao, Yonghui; Zhang, Min; Tian, Yuhua; Zhao, Miao; Zeng, Ke; Zhang, Bowen; Zhao, Meng; Yin, Bing

doi:10.1016/j.fcr.2017.11.020

Cited by 86 publications

(56 citation statements)

References 36 publications

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“…Azolla is very important for the agricultural activities of developed and developing countries [5]. Azolla has great potential for biological N fixation (30-100 kg N ha −1 ) and thus Azolla species can be used effectively as a biofertilizer for paddy fields [6]. Furthermore, the use of Azolla species as a biofertilizer in rice fields improves soil fertility by increasing the organic matter in the soil, thus improving soil structure and environmental safety [7,8].…”

Section: Introductionmentioning

confidence: 99%

Growth performance and biochemical profile of Azolla pinnata and Azolla caroliniana grown under greenhouse conditions

Kösesakal

Yıldız

2019

Arch biol sci (Beogr)

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This study aimed to evaluate the growth performance, pigment content changes, essential amino acids (EAAs), fatty acids (FAs), and proximate composition of Azolla pinnata and Azolla caroliniana grown in a greenhouse. Plants were grown in nitrogen-free Hoagland's solution at 28±2°C/21±2°C, day/night temperature and 60-70% humidity and examined on the 3 rd , 5 th , 10 th and 15 th days. The mean percentage of plant growth and relative growth rate for A. pinnata were 119% and 0.148 gg-1 day-1 , respectively, while for A. caroliniana these values were 94% and 0.120 gg-1 day-1 , respectively. Compared to day 3, the amount of total chlorophyll obtained on day 15 decreased significantly (p<0.05) for A. pinnata while the total phenolic and flavonoid contents increased significantly (p<0.05) from the 3 rd to the 15 th day. However, the total phenolic and flavonoid contents did not differ (p>0.0.5) in A. caroliniana. The crude protein, lipid, cellulose, ash values and the amounts of EAAs were higher in A. pinnata than A. caroliniana. Palmitic acid, oleic acid, and lignoceric acid were found to be predominant in A. pinnata and A. caroliniana. From the plant growth and pigment contents, we concluded that A. pinnata grew faster than A. caroliniana and its photosynthetic efficiency was more effective.

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Section: Introductionmentioning

confidence: 99%

Growth performance and biochemical profile of Azolla pinnata and Azolla caroliniana grown under greenhouse conditions

Kösesakal

Yıldız

2019

Arch biol sci (Beogr)

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“…In this study, the increase in grain yield with Azolla could be attributed to the higher availability of Azolla nitrogen, efficient absorption of N, and possibly other nutrients. Azolla biofertilizer treatments improved rice N utilization efficiency, due to reduced N loss, and increased rice plant uptake of N (Yao et al, 2018).…”

Section: Discussionmentioning

confidence: 97%

Effect of Azolla Application on Rice Production at Mid-Hills Condition of Nepal

Kandel¹,

Malla²,

Adhikary³

et al. 2020

Trop.cal.Agr

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Azolla pinnata, a floating water fern, is used as green manure (bio-fertilizer) for increasing rice yields. It can fix di-nitrogen (N2) in association with Anabaena Azolla therefore helps to reduce the recommended dose of chemical-nitrogen when Azolla is applied to the paddy field. The species of Azolla has been collected from different parts of the country and maintained in the Soil Science Division, NARI, Khumaltar, Lalitpur. A field experiment was conducted at the Agronomy farm, Khumaltar to study and evaluate the effects of Azolla pinnata compared to other nutrient sources to the rice during 2015/16 and 2016/2017. The experimental design was a randomized complete block design (RCBD) comprising of 6 treatments and 3 replications. The rice variety used was Khumal-4. The results of the experiment revealed that incorporation of Azolla to rice field in combination with the recommended dose of Phosphorous and Potassium gave comparable yields to that of the recommended dose of Nitrogen, Phosphorous, and Potassium. Also, yields were comparable to that of the use of compost (10 ton/ha). The study indicates that Azolla could be a very good alternative supplementary source of fertilizer-N for rice production.

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“…discovered that the liquid bio‐fertilizer provided amino acids and essential minerals to Capsicum annum , improving the root length, total dry weight, leaf area, and the number of branches and pods 11 . The positive effects of algal bio‐fertilizers on the growth of other plants or crops, such as Vigna radiata , Cucumis sativus , and Oryza sativa , were also reported 10,46 . Therefore, the algal bio‐fertilizer industry is of vital importance to agricultural development.…”

Section: Technologies For the Production And Application Of Algal Biomentioning

confidence: 99%

Emerging technologies of algae‐based wastewater remediation for bio‐fertilizer production: a promising pathway to sustainable agriculture

Zou¹,

Zeng

et al. 2020

J of Chemical Tech & Biotech

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Soil degradation, overuse of chemical fertilizer, and biodiversity loss are serious problems challenging the sustainable development of modern agriculture. In recent years, owing to the advantages of algae biotechnology in nutrients recovery and soil improvement, the integration of algae‐based wastewater remediation and algal bio‐fertilizer production is emerging into the limelight. In this work, we emphasize on the progresses achieved in the fields of biomass production by algae cultivation in wastewater and application of algal bio‐fertilizers. Particularly, three types of algal bio‐fertilizers, including slow‐release bio‐fertilizer, nitrogen‐fixing cyanobacteria, and liquid bio‐fertilizer, widely evaluated and utilized in agriculture are introduced. To prevent the overly optimistic prediction of algal bio‐fertilizer in a real‐world application, we point out the challenges and technical defects, such as presence of new pollution factors in wastewater, high cost of algal biomass, contamination of algal biomass in wastewater, low productivity of algae and valuable components, high water consumption, and potential threats of cyanobacteria to the environment, that prevent the concept of integrating algae‐based wastewater remediation and algal bio‐fertilizer production from becoming a reality. Based on our knowledge and experience, potential solutions to the aforementioned problems are discussed in depth. It is expected that the emerging technologies of algae‐based wastewater remediation for bio‐fertilizer production will bring human beings into a new era of environmentally‐friendly, high‐yield, and resource‐recycling agriculture. © 2020 Society of Chemical Industry (SCI)

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Azolla biofertilizer for improving low nitrogen use efficiency in an intensive rice cropping system

Cited by 86 publications

References 36 publications

Growth performance and biochemical profile of Azolla pinnata and Azolla caroliniana grown under greenhouse conditions

Growth performance and biochemical profile of Azolla pinnata and Azolla caroliniana grown under greenhouse conditions

Effect of Azolla Application on Rice Production at Mid-Hills Condition of Nepal

Emerging technologies of algae‐based wastewater remediation for bio‐fertilizer production: a promising pathway to sustainable agriculture

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