scholarly journals Nutrient Management Technologies and the Role of Organic Matrix-Based Slow-Release Biofertilizers for Agricultural Sustainability: A Review

2020 ◽  
Vol 41 (01) ◽  
Author(s):  
Indra Jeet Chaudhary ◽  
Ajay Neeraj ◽  
Mohd Arshad Siddiqui ◽  
Vivek Singh

Natural soil containing nutrients (like nitrogen, phosphorus, calcium and potassium) allows plants to grow. The deficiency of nutrients in soil reduced the growth and development of plants. When the nutrient level is too low, the plant cannot function properly and then fertilizers provide sufficient nutrients to plants. Nowadays the farmer applied various kinds of synthetic and organic and some special class of microbial fertilizers for more production of agricultural crops. Excess use of chemical fertilizers caused nutrient leaching problems and also pollutes soil, water and air environment. However, chemical fertilizers are expensive, non-eco-friendly, cause eutrophication, reduce organic matter and microbial activity in the soil and are hazardous to health. Therefore, Slow-release biofertilizers are also produced by the technical intermediations that breakdown the nutrients and make them available to the plants for a longer duration. These fertilizers play an important role in improving the growth and development of plants, thereby mitigating environmental pollution and helping in sustainable agriculture. The efficacy of slow-release biofertilizers can be enhanced plant growth and productivity and manage the nutrient leaching from soil and also control water pollution.

2016 ◽  
Vol 3 (2) ◽  
pp. 56-62
Author(s):  
R. Iskra ◽  
V. Vlizlo ◽  
R. Fedoruk

The results of our studies and the data of modern literature regarding the biological role of Cr(III) compounds in conditions of their application in the nutrition for pigs and cattle are discussed. The metabolic impact of Cr(III), coming from different sources – mineral and organic compounds, obtained by chemical synthesis or a nanotechnological method (chromium citrate), as well as in the form of biocomplexes from the cultural medium of Saccharomyces cerevisiae yeasts was analyzed. The metabolic connection between the impact of Cr(III) and the biosynthesis of some hormones – insulin, cortisol – as well as the sensitivity of some tissues and organs to the effect of chromium compounds was studied. A considerable part of the review material was dedicated to the metabolic effect of Cr(III) compounds on the reproductive function of pigs and cattle and their impact on the viability of the offspring and gametes of animals. The data about the stimulating effect of Cr(III) on the growth and development of the organism of piglets and calves, meat and milk performance of these species of animals are discussed. The relevance of dosing Cr(III) in the nutrition of pigs and cattle is highlighted.


2020 ◽  
Vol 9 (2) ◽  
pp. 78-88
Author(s):  
Mulugeta Mulat ◽  
Raksha Anand ◽  
Fazlurrahman Khan

The diversity of indole concerning its production and functional role has increased in both prokaryotic and eukaryotic systems. The bacterial species produce indole and use it as a signaling molecule at interspecies, intraspecies, and even at an interkingdom level for controlling the capability of drug resistance, level of virulence, and biofilm formation. Numerous indole derivatives have been found to play an important role in the different systems and are reported to occur in various bacteria, plants, human, and plant pathogens. Indole and its derivatives have been recognized for a defensive role against pests and insects in the plant kingdom. These indole derivatives are produced as a result of the breakdown of glucosinolate products at the time of insect attack or physical damages. Apart from the defensive role of these products, in plants, they also exhibit several other secondary responses that may contribute directly or indirectly to the growth and development. The present review summarized recent signs of progress on the functional properties of indole and its derivatives in different plant systems. The molecular mechanism involved in the defensive role played by indole as well as its’ derivative in the plants has also been explained. Furthermore, the perspectives of indole and its derivatives (natural or synthetic) in understanding the involvement of these compounds in diverse plants have also been discussed.


2016 ◽  
Vol 43 (2) ◽  
pp. 105 ◽  
Author(s):  
Lu Wang ◽  
Yong-Ling Ruan

Roots and shoots are distantly located but functionally interdependent. The growth and development of these two organ systems compete for energy and nutrient resource, and yet, they keep a dynamic balance with each other for growth and development. The success of such a relationship depends on efficient root-shoot communication. Aside from the well-known signalling processes mediated by hormones such as auxin and cytokinin, sugars have recently been shown to act as a rapid signal to co-ordinate root and shoot development in response to endogenous and exogenous clues, in parallel to their function as carbon and energy resources for biomass production. New findings from studies on vascular fluids have provided molecular insights into the role of sugars in long-distance communications between shoot and root. In this review, we discussed phloem- and xylem- translocation of sugars and the impacts of sugar allocation and signalling on balancing root–shoot development. Also, we have taken the shoot–root carbon–nitrogen allocation as an example to illustrate the communication between the two organs through multi-layer root–shoot–root signalling circuits, comprising sugar, nitrogen, cytokinin, auxin and vascular small peptide signals.


Planta ◽  
2015 ◽  
Vol 241 (6) ◽  
pp. 1313-1324 ◽  
Author(s):  
Adeyemi O. Aremu ◽  
Nqobile A. Masondo ◽  
Kannan R. R. Rengasamy ◽  
Stephen O. Amoo ◽  
Jiří Gruz ◽  
...  

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