Nitrogen and potassium nutrition affect yield, dry weight partitioning, and nutrient-use efficiency of sweet potato

2002 ◽  
Vol 33 (1-2) ◽  
pp. 287-301 ◽  
Author(s):  
H. R. Martí ◽  
H. A. Mills
Keyword(s):  
Sweet Potato ◽  
Nutrient Use Efficiency ◽  
Dry Weight ◽  
Potassium Nutrition ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Dry Weight Partitioning

scholarly journals PENGARUH KONSORSIUM PBRM (PLANT BENEFICIAL RHIZOSPHERIC MICROORGANISM) DALAM NUE (NUTRIENT USE EFFICIENCY) PADA PERTUMBUHAN JAGUNG (Zea mays L.)

2019 ◽  
Vol 3 (1) ◽  
pp. 46-51
Author(s):  
Tyas Nyonita Punjungsari ◽  
Agung Setya Wibowo ◽  
Intan Fuji Arriani ◽  
Palupi Puspitorini
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Negative Impact ◽  
Nutrient Use Efficiency ◽  
Dry Weight ◽  
Environment And Health ◽  
Nutrient Use ◽  
Wet Weight ◽  
Use Efficiency ◽  
Corn Plants

Corn farm processing in Blitar Regency is very dependent on fertilization using chemicals. The use of chemicals themselves has a negative impact on the environment and health if used continuously. Therefore we need a solution to increase the absorption of nutrients from the soil by plants (nutrient use efficiency), namely the use of beneficial microorganisms, namely PBRM (Plant Beneficial Rhizospheric Microorganism). The purpose of this study was to determine the effect of a consortium of soil from peanut plants in increasing the growth of corn plants. This research was conducted in May 2019 until September 2019. This study used RAK and was carried out in several stages, the first being planting corn seeds with a combination of NPK and PBRM Consortium, with each of 4 dose levels, K0, K1, K2, K3 Observation indicators consisted of plant height, leaf area, wet weight of cob, dry weight of cob. DMRT test results on the variable Plant Height that the treatment of K2 (1.5 kg Consortium per plant) showed the best results with an average of 7 DAP (9.40) 14 dd (40.96) 28 DAP (102.36) 35 DAP (141, 31) and 42 DAP (172.21) while the age of 21 DAP in the K3 treatment (3 kg consortium) with the average (74.80) which showed the best results on corn plant height. Based on analysis of variance of leaf area observations, it was shown that the administration of PBRM consortium in NUE had a significant effect on the age of 21 DAP, 28 DAP, 35 DAP, and 42 DAP but did not significantly affect the age of 14 HST. In the variable wet weights of K2 treatment cob showed the highest average of 527.33 grams while in the variable dry weight of K2 treatment cob showed the highest average of 493.63 gr.

EFFECT OF TOXIC METAL ON THE STRUCTURAL DRY WEIGHT OF A PLANT: A MODEL

2013 ◽  
Vol 06 (05) ◽  
pp. 1350028 ◽  
Author(s):  
O. P. MISRA ◽  
PREETY KALRA
Keyword(s):  
Plant Growth ◽  
Toxic Effect ◽  
Nutrient Use Efficiency ◽  
Toxic Metal ◽  
Dry Weight ◽  
Individual Plant ◽  
Root Structure ◽  
Nutrient Use ◽  
Use Efficiency ◽  
The Individual

A two compartment mathematical model for the individual plant growth under the stress of toxic metal is studied. In the model it is assumed that the uptake of toxic metal by the plant is through root compartment. The toxic metal present in the soil interfere with the uptake and distribution of essential nutrients in plant causing decrease in the nutrient uptake eventually damaging the root structure. In the model it is further assumed that the resistance to nutrient transport from root to shoot compartment increases and nutrient use efficiency decreases due to the presence of toxic metal. In order to visualize the effect of toxic metal on plant growth, we have studied two models, that is, model for plant growth with no toxic effect and model for plant growth with toxic effect. From the analysis of the models the criteria for plant growth with and without toxic effects are derived. The numerical simulation is done using Matlab to support the analytical results.

scholarly journals Influence of Different Rates of Nitrogen (N) and Phosphorus (P) Fertilizers on Growth and nutrient use efficiency of Hevea brasiliensis

2018 ◽  
Vol 3 (3) ◽  
pp. 53
Author(s):  
Nur Aqilah Saufe ◽  
Zulkefly Sulaiman ◽  
Salisu Monsuru Adekunle ◽  
Mohd Yusoff A. Samad ◽  
Martini Mohammad Yusoff
Keyword(s):  
Nutrient Use Efficiency ◽  
Dry Weight ◽  
Nutrient Concentrations ◽  
Fixed Rate ◽  
Shoot Dry Weight ◽  
Christmas Island ◽  
Nutrient Use ◽  
Vegetative Traits ◽  
Use Efficiency ◽  
Total Dry Weight

The effect of N and P on nutrient concentrations, growth and vegetative traits of rubber (RRIM 2025) clone was evaluated. The treatments consisted 9 combinations of nitrogen (Urea) and phosphorus (Christmas Island Rock Phosphate – CIRP) with fixed rate of potassium (1.5 g per plant). The treatments were applied at different rates T1 (39.49 g), T2 (42.10 g), T3 (38.18 g), T4 (27.28 g) and T5 (26.10 g).  The seedlings were planted in 15 cm x 30 cm filled with an Oxisol soil. Soil containing treatment (T2) significantly increased the seedlings growth like height and girth size than the remaining treatments. The results found that seedlings grown with T2 recorded higher chlorophyll content than the seedlings that were grown with T1, T4 and T5. Noticeably seedlings that was grown with T1 (39.49 g), T2 (42.10 g), and T3 (38.18 g) significantly had a higher shoot dry weight (SDW) than seedlings that were grown with T4 (27.28 g) and T5 (26.10 g). The same scenario was noticed in total dry weight (TDW) of the seedlings where T1 (68.64 g), T2 (73.30 g) and T3 (67.08) significantly recorded higher total dry weight than seedlings that were grown with T4 (50.29 g) and T5 (48.86 g).  The result shows reflected a correlation between the SDW and TDW with respect to similar influence of the treatments on both the vegetative traits. Higher nitrogen content was recorded in seedlings rubber that were grown with T2 (3.57%) and significantly different from the seedlings that were grown with other treatments. The results of this study showed that higher dosage of fertilizer may not be necessary for the rubber seedlings. Application of fertilizers at the rate T2 which contains 2.0 g urea/plant and 7.5 g CIRP/plant could be considered as the optimum amount of fertilizer required for the rubber seedlings.  

Tomato Production in Florida Using Fertigation Technology

EDIS ◽  
2020 ◽  
Vol 2020 (5) ◽  
Author(s):  
Mary Dixon ◽  
Guodong Liu
Keyword(s):  
Nutrient Use Efficiency ◽  
Health Benefits ◽  
Vegetable Crop ◽  
High Demand ◽  
Tomato Production ◽  
Nutrient Use ◽  
Use Efficiency

Tomato is in high demand because of its taste and health benefits. In Florida, tomato is the number one vegetable crop in terms of both acreage and value. Because of its high value and wide acreage, it is important for tomato production to be efficient in its water and nutrient use, which may be improved through fertigation practices. Therefore, the objective of this new 7-page article is to disseminate research-based methods of tomato production utilizing fertigation to enhance yield and nutrient use efficiency. Written by Mary Dixon and Guodong Liu, and published by the UF/IFAS Horticultural Sciences Department.https://edis.ifas.ufl.edu/hs1392

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.

Improved nutrient management in cereals using Nutrient Expert and machine learning tools: Productivity, profitability and nutrient use efficiency

2021 ◽  
Vol 192 ◽  
pp. 103181
Author(s):  
Jagadish Timsina ◽  
Sudarshan Dutta ◽  
Krishna Prasad Devkota ◽  
Somsubhra Chakraborty ◽  
Ram Krishna Neupane ◽  
...  
Keyword(s):  
Machine Learning ◽  
Nutrient Management ◽  
Nutrient Use Efficiency ◽  
Learning Tools ◽  
Nutrient Use ◽  
Use Efficiency

scholarly journals Common Bean Yield and Zinc Use Efficiency in Association with Diazotrophic Bacteria Co-Inoculations

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 959
Author(s):  
Arshad Jalal ◽  
Fernando Shintate Galindo ◽  
Eduardo Henrique Marcandalli Boleta ◽  
Carlos Eduardo da Silva Oliveira ◽  
André Rodrigues dos Reis ◽  
...  
Keyword(s):  
Common Bean ◽  
Nutrient Use Efficiency ◽  
Growth Yield ◽  
Staple Food ◽  
Human Beings ◽  
Rhizobium Tropici ◽  
Nutrient Use ◽  
Zn Nutrition ◽  
Use Efficiency ◽  
Soil Zn

Enrichment of staple food with zinc (Zn) along with solubilizing bacteria is a sustainable and practical approach to overcome Zn malnutrition in human beings by improving plant nutrition, nutrient use efficiency, and productivity. Common bean (Phaseolus vulgaris L.) is one of a staple food of global population and has a prospective role in agronomic Zn biofortification. In this context, we evaluated the effect of diazotrophic bacterial co-inoculations (No inoculation, Rhizobium tropici, R. tropici + Azospirillum brasilense, R. tropici + Bacillus subtilis, R. tropici + Pseudomonas fluorescens, R. tropici + A. brasilense + B. subtilis, and R. tropici + A. brasilense + P. fluorescens) in association with soil Zn application (without and with 8 kg Zn ha−1) on Zn nutrition, growth, yield, and Zn use efficiencies in common bean in the 2019 and 2020 crop seasons. Soil Zn application in combination with R. tropici + B. subtilis improved Zn accumulation in shoot and grains with greater shoot dry matter, grain yield, and estimated Zn intake. Zinc use efficiency, recovery, and utilization were also increased with co-inoculation of R. tropici + B. subtilis, whereas agro-physiological efficiency was increased with triple co-inoculation of R. tropici + A. brasilense + P. fluorescens. Therefore, co-inoculation of R. tropici + B. subtilis in association with Zn application is recommended for biofortification and higher Zn use efficiencies in common bean in the tropical savannah of Brazil.

scholarly journals Plant Biostimulants from Cyanobacteria: An Emerging Strategy to Improve Yields and Sustainability in Agriculture

Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 643
Author(s):  
Gaia Santini ◽  
Natascia Biondi ◽  
Liliana Rodolfi ◽  
Mario R. Tredici
Keyword(s):  
Nutrient Use Efficiency ◽  
Biologically Active ◽  
Future Research ◽  
Plant Tolerance ◽  
Metabolic Plasticity ◽  
Nutrient Use ◽  
Cyanobacterial Species ◽  
Use Efficiency ◽  
Promising Source ◽  
Plant Treatment

Cyanobacteria can be considered a promising source for the development of new biostimulants as they are known to produce a variety of biologically active molecules that can positively affect plant growth, nutrient use efficiency, qualitative traits of the final product, and increase plant tolerance to abiotic stresses. Moreover, the cultivation of cyanobacteria in controlled and confined systems, along with their metabolic plasticity, provides the possibility to improve and standardize composition and effects on plants of derived biostimulant extracts or hydrolysates, which is one of the most critical aspects in the production of commercial biostimulants. Faced with these opportunities, research on biostimulant properties of cyanobacteria has undergone a significant growth in recent years. However, research in this field is still scarce, especially as regards the number of investigated cyanobacterial species. Future research should focus on reducing the costs of cyanobacterial biomass production and plant treatment and on identifying the molecules that mediate the biostimulant effects in order to optimize their content and stability in the final product. Furthermore, the extension of agronomic trials to a wider number of plant species, different application doses, and environmental conditions would allow the development of tailored microbial biostimulants, thus facilitating the diffusion of these products among farmers.

scholarly journals Developing green super rice varieties with high nutrient use efficiency by phenotypic selection under varied nutrient conditions

2019 ◽  
Vol 7 (3) ◽  
pp. 368-377 ◽  
Author(s):  
Zilhas Ahmed Jewel ◽  
Jauhar Ali ◽  
Yunlong Pang ◽  
Anumalla Mahender ◽  
Bart Acero ◽  
...  
Keyword(s):  
Nutrient Use Efficiency ◽  
Phenotypic Selection ◽  
Rice Varieties ◽  
Nutrient Use ◽  
High Nutrient ◽  
Use Efficiency ◽  
Nutrient Conditions
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