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O feijão é um vegetal pertencente à família das fabáceas e de relevante importância alimentar. Objetivou-se com o trabalho avaliar a influência do fertilizante mineral, biofertilizante e pó de rocha e a interação entre os fertilizantes na produtividade e qualidade das sementes de feijão. Os tratamentos utilizados foram T1 (testemunha - controle); T2 (150 kg/ha de fertilizante mineral); T3 (4 ton/ha de fertilizante pó de rocha); T4 (120 litros/ha de biofertilizante); T5 (150 kg/ha de fertilizante mineral + 120 litros/ha de biofertilizante); T6 (4 ton/ha de fertilizante pó de rocha + 120 litros/ha de biofertilizante); T7 (150 kg/ha de fertilizante mineral + 4 ton/ha de fertilizante pó de rocha + 120 litros/ha de biofertilizante). Realizaram-se análises dos componentes de produção, produtividade e qualidade das sementes. Os dados foram submetidos à análise de variância e as médias comparadas pelo teste de Tukey. Concluiu-se que a aplicação de diferentes fontes de fertilizantes não altera significativamente os componentes de produção altura, diâmetro do caule, inserção da primeira folha, número de vagens por planta, grãos por planta, produtividade e as variáveis da qualidade de sementes: germinação, massa seca de plântulas e condutividade elétrica na cultura do feijoeiro (Phaseolus vulgaris L.).

Na soja a fertilidade do solo é considerado um dos principais fatores responsáveis pela queda de produtividade dos grãos. Devido a isso o presente trabalho teve como objetivo avaliar o uso de diferentes fertilizantes nos componentes de produção e produtividade de grãos de soja cultivados no cerrado. O experimento foi conduzido na safra 2016-2017. O delineamento utilizado foi de blocos casualizados no esquema em faixas com cinco repetições. O experimento teve como tratamento oito tipos de fontes como adubação e um tratamento testemunha que não teve adubação alguma sendo o tratamento (1) pó de rocha mica xisto, tratamento (2) pó de rocha mica xisto + adubação com MAP e KCl, tratamento (3) pó de rocha mica xisto com metade da adubação de MAP e KCL tratamento (4) adubação com MAP e KCl, tratamento (5) testemunha sem adubação, tratamento (6) adubação com MAP e KCl + inoculação turfoso, tratamento (7) adubação com MAP e KCl + inoculação no sulco de plantio, tratamento (8) biofertilizante pó de rocha + esterco bovino sem inoculação, tratamento (9) biofertilizante pó de rocha + esterco bovino + inoculação no sulco de plantio. A aplicação de pó de rocha na cultura da soja se mostrou muito promissor, seja como fonte de fertilizante, ou em substituição ou complementação ao uso de adubos altamente solúveis.

Current soil management strategies are mainly dependent on inorganic chemical-based fertilizers, which caused a serious threat to human health and environment. The exploitation of beneficial microbes as a biofertilizer has become paramount importance in agriculture sector for their potential role in food safety and sustainable crop production. The eco-friendly approaches inspire a wide range of application of plant growth promoting rhizobacteria (PGPRs), endo- and ectomycorrhizal fungi, cyanobacteria and many other useful microscopic organisms led to improved nutrient uptake, plant growth and plant tolerance to abiotic and biotic stress. The present review highlighted biofertilizers mediated crops functional traits such as plant growth and productivity, nutrient profile, plant defense and protection with special emphasis to its function to trigger various growth- and defense-related genes in signaling network of cellular pathways to cause cellular response and thereby crop improvement. The knowledge gained from the literature appraised herein will help us to understand the physiological bases of biofertlizers towards sustainable agriculture in reducing problems associated with the use of chemicals fertilizers.

The worldwide increase in human population raises a big threat to the food security of each people as the land for agriculture is limited and even getting reduced with time. Therefore, it is essential that agricultural productivity should be enhanced significantly within the next few decades to meet the large demand of food by emerging population. Not to mention, too much dependence on chemical fertilizers for more crop productions inevitably damages both environmental ecology and human health with great severity. Exploitation of microbes as biofertilizers is considered to some extent an alternative to chemical fertilizers in agricultural sector due to their extensive potentiality in enhancing crop production and food safety. It has been observed that some microorganisms including plant growth promoting bacteria, fungi, Cyanobacteria , etc. have showed biofertilizer-like activities in the agricultural sector. Extensive works on biofertilizers have revealed their capability of providing required nutrients to the crop in sufficient amounts that resulted in the enhancement of crop yield. The present review elucidates various mechanisms that have been exerted by biofertilizers in order to promote plant growth and also provides protection against different plant pathogens. The aim of this review is to discuss the important roles and applications of biofertilizers in different sectors including agriculture, bioremediation, and ecology.

Agriculture has long been the cornerstone of human civilization, providing sustenance and livelihoods for millennia. However, as the global population continues to burgeon, agriculture faces mounting challenges. Soil degradation, nutrient depletion, environmental pollution, and the need for sustainable farming practices are among the pressing issues that require innovative solutions. In this context, nano-biofertilizers have emerged as a groundbreaking technological advancement with the potential to reshape modern agriculture. nano-biofertilizers are innovative agricultural products that leverage the combined principles of nanotechnology and biotechnology to enhance nutrient uptake by plants, improve soil health, and promote sustainable farming practices. These specialized fertilizers consist of nanoscale materials and beneficial microorganisms. These fertilizers are eco-friendly and cost-effective and have shown promising results in various crop plants. In this review, we discuss the recent advances in the development of eco-friendly nano-biofertilizers along with an overview of the various types of nano-biofertilizers, their formulation, synthesis, and mode of application for next-generation agriculture. The importance of the interaction between nanoparticles and bacterial species and its impact on the effectiveness of nano-biofertilizers has also been discussed along with the potential benefits, challenges, and future perspectives of using eco-friendly nano-biofertilizers for sustainable agriculture, ensuring a greener and healthier future for generations to come.

Nowadays, legal regulations and social environmental concerns are converging towards the promotion of more sustainable agriculture based on organic compounds and soil preservation. These trends are fuelling the growth of the biofertilizers, which are beneficial preparations containing microorganisms able to enhance a plant’s ability to uptake essential nutrients. Their production and commercialization encompass a multitude of critical steps deeply reviewed in this manuscript through an exhaustive overview of the key stages, such as microorganism selection, new environmental sources, upscaling to field trials, encapsulation, current application systems and regulatory considerations. However, although the economical expectations are promising, several methodological, environmental, and legal concerns are undermining their advancement. The redefinition of international legal frameworks, their enhancement based on trending technologies, and the fostering of multidisciplinary collaboration across sectors are key players to promote biofertilizers as eco-friendly and cost-effective alternatives to chemical fertilizers.

With the impending increase of the world population by 2050, more activities have been directed toward the improvement of crop yield and a safe environment. The need for chemical-free agricultural practices is becoming eminent due to the effects of these chemicals on the environment and human health. Actinomycetes constitute a significant percentage of the soil microbial community. The Streptomyces genus, which is the most abundant and arguably the most important actinomycetes, is a good source of bioactive compounds, antibiotics, and extracellular enzymes. These genera have shown over time great potential in improving the future of agriculture. This review highlights and buttresses the agricultural importance of Streptomyces through its biocontrol and plant growth-promoting activities. These activities are highlighted and discussed in this review. Some biocontrol products from this genus are already being marketed while work is still ongoing on this productive genus. Compared to more focus on its biocontrol ability, less work has been done on it as a biofertilizer until recently. This genus is as efficient as a biofertilizer as it is as a biocontrol.

The idea of eliminating the use of fertilizers which are sometimes environmentally unsafe is slowly becoming a reality because of the emergence of microorganisms that can serve the same purpose or even do better. Depletion of soil nutrients through leaching into the waterways and causing contamination are some of the negative effects of these chemical fertilizers that prompted the need for suitable alternatives. This brings us to the idea of using microbes that can be developed for use as biological fertilizers (biofertilizers). They are environmentally friendly as they are natural living organisms. They increase crop yield and production and, in addition, in developing countries, they are less expensive compared to chemical fertilizers. These biofertilizers are typically called plant growth-promoting bacteria (PGPB). In addition to PGPB, some fungi have also been demonstrated to promote plant growth. Apart from improving crop yields, some biofertilizers also control various plant pathogens. The objective of worldwide sustainable agriculture is much more likely to be achieved through the widespread use of biofertilizers rather than chemically synthesized fertilizers. However, to realize this objective it is essential that the many mechanisms employed by PGPB first be thoroughly understood thereby allowing workers to fully harness the potentials of these microbes. The present state of our knowledge regarding the fundamental mechanisms employed by PGPB is discussed herein.