Smart Fertilizer Strategy for Better Crop Production

2020 ◽  
Author(s):  
A. Karthik ◽  
M. Uma Maheswari
Keyword(s):  
Controlled Release ◽  
Plant Growth ◽  
Crop Yield ◽  
New Technologies ◽  
Nutrient Use Efficiency ◽  
Crop Productivity ◽  
Nano Particles ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Controlled Release Fertilizers

Food security is one of the major concerns for all developing countries of the world. Even though we had attained the highest food production with the use of new technologies, we may not able to feed the burgeoning population adequately in coming years due to stagnant crop productivity. Natural source of nutrients like organic manures and external source of nutrients, viz. fertilizers, are considered as the two eyes in plant nutrient management. Nutrient use efficiency of fertilizer is very low due to numerous pathways of losses such as leaching, denitrification, microbial immobilization, fixation and runoff. It has been estimated that around 40-70% of nitrogen, 80-90% of phosphorus, 50-70% of potassium and more than 95% of micronutrient content of applied fertilizers are lost in to the environment and results in pollution (Kanjana, 2017). Smart fertilizers like slow and controlled release fertilizers, nanofertilizers and bioformulation fertilizers are the new technologies to enhance the nutrient use efficiency their by improving crop yield in sustainable manner. The use of slow and controlled release fertilizers increase nutrient use efficiency, minimize the risks like leaf burning, water contamination and eutrophication. Nano-fertilizers are the nano-particles-based fertilizers, where supply of the nutrients is made precisely for maximum plant growth, have higher use efficiency, exploiting plant unavailable nutrients in the rhizosphere and can be delivered on real time basis into the rhizosphere or by foliar spray (Priyanka Solangi et al., 2015). The small size, high specific surface area and reactivity of nano fertilizers increase the solubility, diffusion and availability of nutrients to plants and enhance crop productivity. Bioformulation is microbial preparations containing specific beneficial microorganisms which are capable of fixing or solubilizing or mobilizing plant nutrients for promoting plant growth and crop yield. Smart fertilizers are the better option for the farmers to increase their crop yield with low input cost in sustainable way without degrading natural environment.

scholarly journals Meticulous Overview on the Controlled Release Fertilizers

2014 ◽  
Vol 2014 ◽  
pp. 1-16 ◽  
Author(s):  
Siafu Ibahati Sempeho ◽  
Hee Taik Kim ◽  
Egid Mubofu ◽  
Askwar Hilonga
Keyword(s):  
Controlled Release ◽  
Adverse Effects ◽  
Nutrient Use Efficiency ◽  
Nutrient Release ◽  
Fertilizer Application ◽  
Natural Polymers ◽  
Materials Engineering ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Controlled Release Fertilizers

Owing to the high demand for fertilizer formulations that will exhaust the possibilities of nutrient use efficiency (NUE), regulate fertilizer consumption, and lessen agrophysicochemical properties and environmental adverse effects instigated by conventional nutrient supply to crops, this review recapitulates controlled release fertilizers (CRFs) as a cutting-edge and safe way to supply crops’ nutrients over the conventional ways. Essentially, CRFs entail fertilizer particles intercalated within excipients aiming at reducing the frequency of fertilizer application thereby abating potential adverse effects linked with conventional fertilizer use. Application of nanotechnology and materials engineering in agriculture particularly in the design of CRFs, the distinctions and classification of CRFs, and the economical, agronomical, and environmental aspects of CRFs has been revised putting into account the development and synthesis of CRFs, laboratory CRFs syntheses and testing, and both linear and sigmoid release features of CRF formulations. Methodical account on the mechanism of nutrient release centring on the empirical and mechanistic approaches of predicting nutrient release is given in view of selected mathematical models. Compositions and laboratory preparations of CRFs basing on in situ and graft polymerization are provided alongside the physical methods used in CRFs encapsulation, with an emphasis on the natural polymers, modified clays, and superabsorbent nanocomposite excipients.

Connecting Crop Nutrient Use Efficiency to Future Soil Productivity

2018 ◽  
Vol 102 (4) ◽  
pp. 8-10
Author(s):  
Fernando García ◽  
Andrés Grasso ◽  
María González Sanjuan ◽  
Adrián Correndo ◽  
Fernando Salvagiotti
Keyword(s):  
Nutrient Management ◽  
Nutrient Use Efficiency ◽  
Management Strategies ◽  
Crop Productivity ◽  
Soil Productivity ◽  
Nutrient Use ◽  
Grain Crop ◽  
Wide Scale ◽  
Use Efficiency

Trends over the past 25 years indicate that Argentina’s growth in its grain crop productivity has largely been supported by the depletion of the extensive fertility of its Pampean soils. Long-term research provides insight into sustainable nutrient management strategies ready for wide-scale adoption.

scholarly journals Subsurface-Applied Coated Nitrogen Fertilizer Enhanced Wheat Production by Improving Nutrient-Use Efficiency with Less Ammonia Volatilization

Agronomy ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 2396
Author(s):  
Muhammad Yaseen ◽  
Adeel Ahmad ◽  
Muhammad Naveed ◽  
Muhammad Asif Ali ◽  
Syed Shahid Hussain Shah ◽  
...  
Keyword(s):  
Ammonia Volatilization ◽  
Nutrient Use Efficiency ◽  
Ammonium Phosphate ◽  
Crop Productivity ◽  
N Fertilization ◽  
N Fertilizer ◽  
Ammonia Emissions ◽  
Nitrogen And Phosphorus ◽  
Nutrient Use ◽  
Use Efficiency

Nitrogen (N) is an essential plant nutrient, therefore, N-deficient soils affect plant growth and development. The excessive and unwise application of N fertilizers result in nutrient losses and lower nutrient use efficiency that leads to the low crop productivity. Ammonia volatilization causes a major loss after N fertilization that causes environmental pollution. This experiment was conducted to evaluate the effectiveness of coating and uncoating N fertilizer in enhancing yield and nutrient-use efficiency with reduced ammonia emissions. The recommended rate of nitrogen and phosphorus, urea and di-ammonium phosphate (DAP) fertilizers were coated manually with 1% polymer solution. DAP (coated/uncoated) and potassium were applied at the time of sowing as subsurface application. While urea (coated/uncoated) was applied as surface and subsurface application. Results showed that nutrient use efficiencies of wheat were found to be maximum with the subsurface application of coated N fertilizer which increased nutrient-use efficiency by 44.57 (N), 44.56 (P) and 44.53% (K) higher than the surface application of uncoated N fertilizer. Ammonia emissions were found the lowest with subsurface-applied coated N fertilizer. Thus, coated fertilizer applied via subsurface was found the best technique to overcome the ammonia volatilization with an improvement in the yield and nutrient-use efficiency of wheat.

scholarly journals Maximizing root/rhizosphere efficiency to improve crop productivity and nutrient use efficiency in intensive agriculture of China

2012 ◽  
Vol 64 (5) ◽  
pp. 1181-1192 ◽  
Author(s):  
Jianbo Shen ◽  
Chunjian Li ◽  
Guohua Mi ◽  
Long Li ◽  
Lixing Yuan ◽  
...  
Keyword(s):  
Nutrient Use Efficiency ◽  
Crop Productivity ◽  
Intensive Agriculture ◽  
Nutrient Use ◽  
Use Efficiency

STUDIES ON NANOPARTICLE INDUCED NUTRIENT USE EFICIENCY OF FERTILIZER AND CROP PRODUCTIVITY

2016 ◽  
Vol 2 (2) ◽  
pp. 88 ◽  
Author(s):  
Archana P. Kale ◽  
Satyavikas N. Gawade
Keyword(s):  
Synergistic Effect ◽  
Block Design ◽  
Nutrient Use Efficiency ◽  
Solanum Melongena ◽  
Crop Productivity ◽  
Field Trials ◽  
The Third ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Growth Attributes

A field experiment was conducted at M/s.Rashtriya Chemicals and Fertilizers, Ltd., Mumbai, India, (RCF) experimental farm to evaluate the effect of ZnO Nanoparticles (ZnO NP) in combination with N: P: K (15: 15:15) complex fertilizer “Suphala” of RCF Ltd. on growth attributes of brinjal (Solanum melongena L) as well as nutrient use efficiency. The experiment was carried out in randomised block design with three replications. The first treatment (T-1), comprised of recommended dose of fertilizer (RDF), N: P: K (50:50:50), applied at the time of transplantation. The second treatment (T-2) was conducted with RDF in combination @ 2kg ZnSO4 (bulk)/ha. The third treatment (T-3) was added, N: P: K (12.5; 12.5; 12.5) in combination to ZnO NP @ 4500mg/ha. The forth treatment (T-C) was without any fertilizer. All treatments were given appropriate quantity of nitrogen per hectare as urea at the 30th day of transplantation. The combination N: P: K (12.5; 12.5; 12.5) and ZnO NP @ 4500mg/ha yielded 91% and 45.3% higher brinjal yield and biomass respectively than the treatment with only RDF. It was also observed that 38% and 21% higher yield and biomass respectively were recorded in the treatment where combination of RDF with ZnSO4 (bulk) over RDF was used alone. The results of field trials reveal that, there was synergistic effect of ZnO NP @ 4500mg per hectare with N: P: K complex fertilizer on growth attributes of brinjal as well as nutrient use efficiency.

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