Application of Nanosilicon and Nanochitosan to Diminish the Use of Pesticides and Synthetic Fertilizers in Crop Production

Author(s):  
Armando Robledo-Olivo ◽  
Marcelino Cabrera-De la Fuente ◽  
Adalberto Benavides-Mendoza
2019 ◽  
Vol 26 (2) ◽  
pp. 888-900 ◽  
Author(s):  
Xiaoying Zhang ◽  
Qunchao Fang ◽  
Tao Zhang ◽  
Wenqi Ma ◽  
Gerard L. Velthof ◽  
...  

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
B. N. Aloo ◽  
E. R. Mbega ◽  
J. B. Tumuhairwe ◽  
B. A. Makumba

AbstractAgricultural intensification continues in Africa in attempts to meet the rising food demands of the equally rising population. However, most arable lands in the region are characterized by nutrient deficiency and over-reliance on synthetic fertilizers which consequently contributes to increased production costs, environmental pollution, and global warming. Decades of research on plant–rhizobacterial interactions have led to the formulation and commercialization of rhizobacterial biofertilizers globally for sustainable soil and crop health. Nevertheless, this promising technology has not received much attention in Africa and remains largely unexplored due to several constraints. This article discusses the practical applications of rhizobacterial biofertilizers for sustainable crop production in sub-Saharan Africa. The challenges of soil infertility and the use of conventional synthetic fertilizers in crop production in Africa are critically evaluated. An overview of the potential of rhizobacteria as biofertilizers and alternatives to synthetic fertilizers for soil fertility and crop productivity in the continent is also provided. The advantages that these biofertilizers present over their synthetic counterparts and the status of their commercialization in the African region are also assessed. Finally, the constraints facing their formulation, commercialization, and utilization and the prospects of this promising technology in the region are deliberated upon. Such knowledge is valuable towards the full exploitation and adoption of this technology for sustainable agriculture for Africa’s food security.


2021 ◽  
Vol 17 (2) ◽  
pp. 751-758
Author(s):  
Tarasankar Pattanaik ◽  
Priyanka Priyadarsani Pati ◽  
B. Praveen ◽  
Saurav Barman

Microorganisms make a deal in the field of agro-ecosystem and environment (7). Continuous in global human population may hamper in the field related to soil fertility, (39) energy crisis, food security for further generation (40). These conditions could be regulated by using synthetic fertilizers (8). Although synthetic fertilizers are effective but have deleterious effect on the field. This article focuses on the role of Cyanobacteria with context to the field of crop production (13). Cyanobacteria aka blue green algae belongs to aprimordialdescent of photo-oxygenic bacteria. They also form symbiotic association capable to fix atmospheric Nitrogen into utilise form and make it available to the plants. Its extra ordinary development rate shows its use in the field of biotechnology, medicine, agriculture, bio energy. The exo-polysaccharide of Cyanobacteria balances soil ecology and they have the ability to compete with flora and fauna. Several Cyanobacteria have high biomass yield, generation of useful by-products, bio fuel and enhancing sustainable development in the field of science. In this review article describes the latent use of the bacteria in the crop field, different area of science field and mass production of cyanobacteria bio fertilizer in agriculture to overcome the use of chemical fertilizers.


2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Rasmus Einarsson ◽  
Alberto Sanz-Cobena ◽  
Eduardo Aguilera ◽  
Gilles Billen ◽  
Josette Garnier ◽  
...  

AbstractThis paper presents EuropeAgriDB v1.0, a dataset of crop production and nitrogen (N) flows in European cropland 1961–2019. The dataset covers 26 present-day countries, detailing the cropland N harvests in 17 crop categories as well as cropland N inputs in synthetic fertilizers, manure, symbiotic fixation, and atmospheric deposition. The study builds on established methods but goes beyond previous research by combining data from FAOSTAT, Eurostat, and a range of national data sources. The result is a detailed, complete, and consistent dataset, intended as a basis for further analyses of past and present agricultural production patterns, as well as construction of scenarios for the future.


Author(s):  
Jeffrey P. Villaver

There is a growing popularity of organic farming in the modern era because of its potential contributions in sustaining crop production without impairing the natural condition of the environment. In this study, the physiological parameters of sweet corn applied with rates of indigenous microorganisms (IMO) 7 such as: (120 kg N - 90 kg P2O5 - 60 kg K2O, IMO 7 at 7.5 t ha-1, 15 t ha-1, and 22.5 t ha-1) and biofertilizers - fish amino acid (FAA), fermented plant juice (FPJ), and fermented seaweed (FS) were evaluated at different crop stages at 45, 55, 65, and 75 days after planting. The study was conducted in a 4 x 4 factorial in Randomized Complete Block Design (RCBD) with three replicates. Rates of IMO 7 significantly influenced on the crop growth rate (CGR) at 55-65 days after planting (DAP), and carbon productivity (CP) while biofertilizers influenced on weight per ear, the number of kernels per ear, ear yield, and leaf area ratio (LAR) at 65 DAP. Synthetic fertilizers (120 kg N, 90 kg P2O5, 60 kg K2O) and IMO 7 at 22.5 t ha-1 gave the highest carbon productivity at harvest of 10.58 t ha-1 and 10.38 t ha-1, respectively. Fermented seaweed gave the highest ear yield, weight per ear, and the number of kernels per ear. IMO 7 at the rate of 22.5 t ha-1 gave the highest CGR at 19.5 mg g-1 day-1 or 25.64% higher than those plants treated with the minimum rate of 7.5 t ha-1. The results of the study provide information on the potentials of using IMO 7 in combination with fermented seaweed as organic fertilizers for sustainable sweet corn production.


Author(s):  
Rajinder Kaur ◽  
Sukhminderjit Kaur

The nutrient availability to plants is major limiting factor determining the crop production. Chemical fertilizers are, no doubt, a milestone to fulfill the nutrient deficiency but presently mankind is facing a huge threat of environment damage as well as resource depletion. At the same time population explosion is also a major concern. To feed such a large population (8.5 × 109 in 2025) unexploited resources should be used to enhance the crop production and to improve quality of soil. The various plant specific nitrogen fixing, phosphate solubilizing, potassium solubilizing and zinc mobilizing microorganisms can be used to enhance the bioavailability of nutrients to plants. This biological method is not only sustainable for long run but also economical and thus can be used as biofertilizers. These microorganisms can be commercially made available to farmers in the form of carrier based, liquid or encapsulated formulations containing latent or active forms. Apart from nutrient mobilization, they can also act as bioenhancers and biopesticides. However, efficiency and acceptance of biofertilizer among farmers is still a big concern. This review article focuses on efficiency of biofertilizers to replace or supplement the synthetic fertilizers for soil fertilization.


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