scholarly journals Nutrient Budgeting of Primary Nutrients and Their Use Efficiency in India

2020 ◽  
pp. 92-114 ◽  
Author(s):  
Gayatri Sahu ◽  
Shreya Das ◽  
Samanyita Mohanty
Keyword(s):  
Nutrient Use Efficiency ◽  
Nutrient Budget ◽  
Chemical Fertilizers ◽  
Nutrient Use ◽  
Nutrient Surplus ◽  
Use Efficiency ◽  
Phosphorus And Potassium ◽  
Fertiliser Use ◽  
The Right ◽  
Early Indication

The imbalanced use of fertilizers in India is evident from the fact that the current ratio of nitrogen, phosphorus and potassium in agricultural soil in several states is skewed towards nitrogen. This imbalance causes problems, right from stagnating or declining productivity to soil sickness, widespread deficiency of macro nutrients and micronutrients, and soil alkalinity and salinity. Eventually, it results in reduced efficiency of fertilisers, low yields and low profitability for farmers. Also, nitrogen pollution of surface and groundwater due to excessive fertiliser use has reached alarming levels in several states. Chemical fertilizers are currently the major emitters of nitrous oxide gas, a potent greenhouse gas and ozone depleting substance. Nutrient budget is an important tool to provide an early indication of potential problems arising from nutrient surplus and nutrient deficit. Balanced use of all types of fertilizers, including traditional organic manures and biofertilizers are needed to bring about a change in the prevailing regime that encourages excessive use of chemical fertilizers. However, meeting future food security targets in an over-populated developing country like India, needs to increase the nutrient use efficiency. This ultimately leads to site-specific need-based nutrient application and minimizing nutrient losses from fields. This leads to the 4R Nutrient Stewardship concept, applying the Right Source of nutrients, at the Right Rate, at the Right Time and in the Right Place. This paper provides a historical overview of the nutrient budgeting efforts and systematically reviews major challenges, opportunities, in defining, quantifying, and applying nutrient budgets and improving nutrient use efficiency.

Recent advancements of molecular breeding and functional genomics for improving nitrogen-, phosphorus- and potassium-use efficiencies in wheat.

2021 ◽  
pp. 170-196
Author(s):  
T. Maharajan ◽  
G. Victor Roch ◽  
S. Antony Ceasar
Keyword(s):  
Climate Change ◽  
Functional Genomics ◽  
Molecular Breeding ◽  
Nutrient Use Efficiency ◽  
Essential Nutrients ◽  
Impact Of Climate Change ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

Abstract This chapter discusses the importance and implications of nitrogen, phosphorus and potassium as essential nutrients and the application of molecular breeding and functional genomics for improving nutrient-use efficiency in wheat are presented. Improvement of nutrient-use efficiency through genetic modification and impact of climate change on nitrogen, phosphorus and potassium management were also discussed.

scholarly journals Variations in biomass, nutrient contents and nutrient use efficiency among Chinese fir provenances

2011 ◽  
Vol 60 (1-6) ◽  
pp. 95-105 ◽  
Author(s):  
Pengfei Wu ◽  
Mulualem Tigabu ◽  
Xiangqing Ma ◽  
Per Christer Odén ◽  
Youlan He ◽  
...  
Keyword(s):  
Southern China ◽  
Nutrient Use Efficiency ◽  
Nutrient Content ◽  
Chinese Fir ◽  
Total Biomass ◽  
Improvement Program ◽  
Nutrient Contents ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Phosphorus And Potassium

Abstract A provenance trial involving 16 Chinese fir provenances was established in southern China in 1979, and biomass, nutrient content and nutrient use efficiency were assessed at the age of 23. One-way analysis of variance revealed significant inter-provenance variation (p<0.0001) in measured variables. The mean total biomass ranged from 98.8±5.3 to 163.3±4.2 t ha−1, and the stemwood accounted for 47–65% of the total biomass, followed by roots (11–24%), stembark (7.4–13.7%), and needles and branches (< 10 %). Much of the nitrogen, phosphorus and potassium were stored in the needles, although the concentration varies among provenances. Whole-tree nutrient use efficiency varied from 115.4±2.1 to 180.2±1.02 g g−1, while efficiency in stemwood production ranged from 53.9±3.1 to 106.3±1.1 g g−1. Provenances did not display consistent variation in all measured variables, suggesting the need for multiple criteria for selection in future tree improvement program. In conclusion, the study reveals the existence of considerable variation in biomass production and nutrient use efficiency among Chinese fir provenances that can be exploited for selecting desirable genotypes for enhancing productivity of Chinese fir plantations.

Spatial variability in pH and key soil nutrients: is this an opportunity to increase fertiliser and lime-use efficiency in grazing systems?

2014 ◽  
Vol 65 (8) ◽  
pp. 817 ◽  
Author(s):  
Mark Trotter ◽  
Chris Guppy ◽  
Rebecca Haling ◽  
Tieneke Trotter ◽  
Clare Edwards ◽  
...  
Keyword(s):  
Spatial Variability ◽  
Nutrient Use Efficiency ◽  
Management Strategies ◽  
Critical Values ◽  
Limiting Factors ◽  
South Wales ◽  
Nutrient Use ◽  
Grazing Systems ◽  
Use Efficiency ◽  
Fertiliser Use

Nutrient-use efficiency is a key issue for grazing systems in Australia. Spatial variability in soil pH and nutrients at the sub-paddock scale may affect the efficiency of utilisation of, and provide an opportunity for, site-specific management (SSM) of fertiliser and soil ameliorants. However, there has been little research exploring the potential for SSM in grazing systems. This study examines the spatial variability of soil test pH, phosphorus (P), potassium (K) and sulfur (S) in two typical pasture fields (a native and an improved) on the Northern Tablelands of New South Wales and evaluates the potential for SSM based on a comparison with critical values. In both fields, the overall paddock mean from a grid survey containing >80 samples for pH, P, K and S (0–10 cm) exceeded the critical values, suggesting that the addition of fertiliser or lime was not required. However, considerable sub-paddock-scale variability was observed, with CV ranging from 35% to 66% for the key nutrients (P, K and S). The Sprengel–Liebig Law of the Minimum was applied to evaluate the proportion of each field constrained by one or more soil characteristics. Up to 55% of the improved paddock and 78% of the native pasture was potentially responsive to amendments. The results of this study suggest that SSM of fertilisers and ameliorants could provide substantial improvements in productivity and possibly reductions in fertiliser use. The development and application of appropriate systems and tools to effectively quantify this spatial variability remain a challenge, coupled with management strategies that optimise the placement of amendments and account for the variability in other production limiting factors.

scholarly journals Mineralization of Farm Manures and Slurries for Successive Release of Carbon and Nitrogen in Incubated Soils Varying in Moisture Status under Controlled Laboratory Conditions

Agriculture ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 846
Author(s):  
Mohammad Rafiqul Islam ◽  
Sultana Bilkis ◽  
Tahsina Sharmin Hoque ◽  
Shihab Uddin ◽  
Mohammad Jahiruddin ◽  
...  
Keyword(s):  
N Mineralization ◽  
Nutrient Use Efficiency ◽  
Poultry Manure ◽  
Mineralization Potential ◽  
Nutrient Use ◽  
C And N Mineralization ◽  
Use Efficiency ◽  
C And N ◽  
The Right ◽  
Moisture Conditions

Having up-to-date knowledge on the mineralization of organic materials and release of nutrients is of paramount significance to ensure crops’ nutrient demands, increase nutrient use efficiency and ensure the right fertilizer application at the right time. This study seeks to evaluate the mineralization patterns of various manures viz. cowdung (CD), cowdung slurry (CDSL), trichocompost (TC), vermicompost (VC), poultry manure (PM), poultry manure slurry (PMSL), and mungbean residues (MR). The objective being to establish their efficiency in releasing nutrients under aerobic (field capacity) and anaerobic (waterlogging) conditions. The incubation experiment was designed using a Completely Randomized Design (CRD) that took into account three variables: Manures, soil moisture, and incubation period. The mineralization of carbon (C) and nitrogen (N) ranged from 11.2 to 100.1% higher under aerobic conditions rather than anaerobic ones. The first-order kinetic model was used to mineralize both elements. C mineralization was 45.8 to 498.1% higher in an amount from MR under both moisture conditions. For N release, MR and PM exerted maximum amounts in anaerobic and aerobic scenarios, respectively. However, the rate of C and N mineralization was faster in TC compared to other manures in both moisture conditions. Although TC was 1.4 to 37.7% more efficient in terms of rapidity of mineralization, MR and PM performed better concerning the quantity of nutrient release and soil fertility improvement. PM had 22–24% higher N mineralization potential than PMSL while CDSL had 46–56% higher N mineralization potential than CD. C and N mineralization in soil was greater under aerobic conditions compared to what occurred in the anaerobic context. Depending on mineralization potential, the proper type and amount of manure should be added to soil to increase crops’ nutrient use efficiency, which in turn should lead to better crop production.

Maximization of Nutrient use Efficiency and Yield through Application of Biofertilizers in Field Pea (Pisum sativum L.)

2021 ◽  
Author(s):  
R.K. Singh ◽  
S.R.K. Singh ◽  
Narendra Kumar ◽  
A.K. Singh
Keyword(s):  
Block Design ◽  
Nutrient Use Efficiency ◽  
Growth Parameter ◽  
Soil Microbiology ◽  
Field Pea ◽  
Phosphate Solubilizing Bacteria ◽  
Chemical Fertilizers ◽  
Combined Application ◽  
Nutrient Use ◽  
Use Efficiency

Background: The negative effects of continuous use of chemical fertilizers on soil microbiology and agricultural sustainability are well established. The chemical fertilizers load in environment can be minimized by combined application of fertilizers and biofertilizers in crops like pulses which require less fertilizer-N and respond well to the use of biofertilizers. The objectives of the study were to see the effect of different biofertilizers in reduction of total fertilizer use and the response of field pea to combined application of chemical- and bio-fertilizers in terms of growth, yield and NUE.Methods: A field experiment was conducted during 2 consecutive rabi season of 2017-18 and 2018-19 at KVK, Chhatarpur, Jabalpur (Madhya Pradesh), India to evaluate the application of fertilizers and biofertilizers on growth parameter, nodulation, nutrient content and uptake, nutrient use efficiency, yield and economics of field pea. The experiment was laid out in randomized block design with five treatments in four replications. Treatments comprised of Control, Recommended dose (RD) of NPK (20: 60: 20 kg N, P2O5 and K2O/ha, respectively) (RDNPK), RDNPK + seed inoculation with Rhizobium @ 20 g/kg seed (RDNPK +R), RDNPK+R+phosphate solubilizing bacteria @ 20 g each/kg seed (RDNPK + R+PSB) and 75% of RDNPK + R+ PSB + potash solubilizing bacteria @ 5 kg/ha (75% RDNPK+ R+PSB+KSB). All other practices followed as per recommendation for the region and different observations and indices were recorded by following standard procedures.Conclusion: The application of 75% RDNPK+R+PSB+KSB was found best treatment among all others which resulted in highest grain yield (1682 kg/ha), protein content (23.1%), protein yield (388.5 kg/ha), net return (Rs. 46 623/ha) and B:C ratio (2.94). The nutrient use efficiency such as Partial Factor Productivity (PFP), Agronomic efficiency (AE), Physiological Efficiency (PE) and Economic Efficiency (EE) were also higher under combined application of fertilizers and biofertilizers. Thus, 75% RDNPK along with combined application of biofertilizers (R+PSB+KSB) may be applied for higher yield and return from field pea.

scholarly journals Effect of Different Approaches of Nutrient Application on Yield, Nutrient Uptake, Nutrient use Efficiency and Economics of Carrot

2021 ◽  
pp. 173-179
Author(s):  
N. Bhavya ◽  
P. K. Basavaraja ◽  
H. Mohamed Saqeebulla ◽  
G. V. Gangamrutha
Keyword(s):  
Nutrient Uptake ◽  
Block Design ◽  
Nutrient Use Efficiency ◽  
Integrated Approach ◽  
Cost Ratio ◽  
Daucus Carota L ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Phosphorus And Potassium ◽  
Absolute Control

A field experiment was conducted during Kharif 2017 at Devanahalli village, Bengaluru rural district of Karnataka to evaluate the effect of different approaches of nutrient application on yield,  nutrient uptake and use efficiency by carrot (Daucus carota L.). The experiment was laid out in randomized complete block design replicated thrice with eight treatments comprisingT1 (STCR target 20 tha-1  through inorganics), T2 (STCR target 20 tha-1  through integrated), T3 (STCR target 25 tha-1  through inorganics), T4 (STCR target 25 tha-1  through integrated), T5 (RDF (75: 63: 50) N, P2O5, K2O kg ha-1+ FYM), T6 (LMH /STL + FYM), T7 (Farmers practice (92.6:159:0) N, P2O5 kg ha-1 + FYM), T8 (Absolute control).Results revealed that significantly higher root (27.51 t ha-1)  and shoot (16.48 t ha-1) yield were recorded in STCR target of 25 t ha-1 through   integrated approach. Similarly, higher total uptake of nitrogen, phosphorus and potassium  (297.07 kg, 57.48 kg and 253.81 kg ha-1, respectively) by carrot and the higher apparent recovery   efficiency (0.35, 0.08 and 0.58 kg kg-1 of N, P2O5 and K2O, respectively) and agronomic nutrient use efficiency (26.10, 12.37 and 48.25 kg kg-1 of N, P2O5 and K2O, respectively) were recorded in the same STCR target of 25 t ha-1 through integrated approach. However, the better profit was recorded (value cost ratio: 43.30) in STCR target of 25 t ha-1 through inorganics. The STCR target of 25 t ha-1 through integrated approach had the most positive effect for the carrot cultivation.

scholarly journals Nutrient Use Efficiency Indices in Maize Hybrid as A Function of Various Rates of NPK in Mid Hills of Nepal

2021 ◽  
Vol 9 (12) ◽  
pp. 2278-2288
Author(s):  
Nabin Rawal ◽  
Keshab Raj Pande ◽  
Renuka Shrestha ◽  
Shree Prasad Vista
Keyword(s):  
Field Experiments ◽  
Nutrient Use Efficiency ◽  
Nutrient Budget ◽  
Silty Clay ◽  
Block Designs ◽  
Maize Production ◽  
Nutrient Use ◽  
K Fertilizer ◽  
Use Efficiency ◽  
Hybrid Maize

Field experiments were conducted to evaluate yield and nutrient use efficiency in maize in response to various rates of nitrogen (N), phosphorus (P) and potassium (K) in silty clay loam soil of Khumaltar, Nepal during 2019 and 2020. Three factorial randomized complete block designs with 27 treatment combinations were used in experiments, which were repeated three times. Three factors were N levels (150, 180, 210 N kg ha-1), P levels (40, 60, 80 P2O5 kg ha-1), and K levels (40, 60, 80 K2O kg ha-1). The results recommend to revise fertilizer dose since N210 kg ha-1 and K2O 80 kg/ha were optimum for increased maize production with grain yields of 10.95 t ha-1 and 10.54 t ha-1, respectively. Partial factor productivity, partial nutrient budget, internal efficiency, physiological efficiency, recovery efficiency, and agronomic efficiency of NPK for hybrid maize were mostly influenced by nutrient levels. Application of higher rate of P and K fertilizer improved maize N efficiencies, and case was valid for P and K efficiencies. Maize was more responsive to N and K fertilizer and lower rate of P application limited efficient use of applied N and K. To increase overall NUE, we recommend to revise dose of fertilizer for hybrid maize under mid hill condition of Nepal.

scholarly journals Growth and Nutrient Partitioning of Containerized Malus trilobata Schneid. and Acer syriacum Boiss. and Gaill. Under Two Fertigation Regimes

HortScience ◽  
2008 ◽  
Vol 43 (6) ◽  
pp. 1746-1752 ◽  
Author(s):  
Hala G. Zahreddine ◽  
Daniel K. Struve ◽  
Salma N. Talhouk
Keyword(s):  
Nutrient Uptake ◽  
Ex Situ Conservation ◽  
Nutrient Use Efficiency ◽  
Ex Situ ◽  
Mineral Nutrient ◽  
Fertilizer Rate ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Phosphorus And Potassium ◽  
Container Production

The native flora of Lebanon is threatened. As part of an ex situ conservation strategy, this study was conducted to determine if Malus trilobata (Schneid.) and Acer syriacum (Boiss. and Gaill.), two native Lebanese trees, were amenable to container production. Therefore, these species' growth and nitrogen, phosphorus, and potassium uptake efficiency and distribution under two fertilizer rates were studied. Malus trilobata seedlings were obtained from seeds collected from two mother trees, whereas Acer syriacum seeds were collected from a single tree. Two-year-old seedlings raised from these seeds were planted in 11-L containers in a 3:1 pine bark:compost substrate. Half the seedlings within each source and species were assigned to either 25 or 100 mg·L−1 N from 21N–3.1P–5.9K water-soluble fertilizer treatments. Seedlings of both Malus trilobata sources grown under 25 mg·L−1 N were taller than those grown at 100 mg·L−1 N. Nitrogen loading occurred in plants of Malus trilobata under the high fertilizer rate, although total plant N, phosphorus, and potassium content was unaffected by fertilizer rate, because larger seedlings had lower nutrient concentrations. There were significant differences in growth among the two Malus trilobata seed sources, but there were no differences in mineral nutrient uptake or nutrient use efficiency. Growth, mineral nutrient uptake, and nutrient use efficiency of Acer syriacum seedlings were unaffected by fertilizer rate. Malus trilobata and Acer syriacum seedlings are amenable to container production. Using container production for these species with subsequent transplanting into managed landscapes might be a viable ex situ conservation method. Further studies are needed.

scholarly journals Nitrogen and Sulfur Fertilization Modulates the Yield, Essential Oil and Quality Traits of Wild Marigold (Tagetes minuta L.) in the Western Himalaya

2021 ◽  
Vol 11 ◽  
Author(s):  
Swati Walia ◽  
Rakesh Kumar
Keyword(s):  
Essential Oil ◽  
Crop Yields ◽  
Stomatal Density ◽  
Nutrient Use Efficiency ◽  
Western Himalaya ◽  
Chemical Fertilizers ◽  
Oil Glands ◽  
Nutrient Use ◽  
Tagetes Minuta ◽  
Use Efficiency

Fertilization plays an irreplaceable role in raising crop yields; however, there are issues with unnecessary and blind use of chemical fertilizers, which raise the risk of contamination in the atmosphere. It is hypothesized that fertilization of nitrogen (N) and sulfur (S) will together improve the essential oil (EO) yield and composition of Tagetes minuta L. Thus, 2 years field experiment were carried out to evaluate the outcomes of N (0, 60, 90, and 120 kg ha–1) and S levels (0, 20, 40, and 60 kg ha–1) on T. minuta during 2018 and 2019. The growth, biomass, EO content and composition were influenced (P = 0.05) by N and S fertilization. N at 120 kg ha–1 and S at 60 kg ha–1 registered higher biomass (183.89 and 178.90 q ha–1, respectively) and EO yield (102.09 and 88.60 kg ha–1, respectively), than control. Stomatal density reduced significantly with increase of N and S levels, however, density of oil glands substantially increased with S at 40 and 60 kg ha–1. The major component of EO (Z-β-ocimene) significantly increased with 120 kg N ha–1 (42.59%) and 60 kg S ha–1 (42.35%), respectively. Available nutrients in soil and plant tissues substantially increased with N and S fertilization upto 120 and 60 kg ha–1, respectively. The highest nutrient use efficiency traits were recorded at 60 kg N ha–1 and 20 kg S ha–1. It was concluded that 120 kg N ha–1 and 40 kg S ha–1 can be proposed for T. minuta as a result of agronomic responses, which serves as a sustainable means of cropping.

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