scholarly journals Economics, PUE and P balance as influenced by different P levels and P fertilization with AM fungi to rabi maize and summer green crop sequence

2019 ◽  
Author(s):  
Asmatullah Durani ◽  
Sonal Tripathi ◽  
Hashmatullah Durrani ◽  
Naeem Jan Sarwary ◽  
Aminullah Yousafzai
Keyword(s):  
Am Fungi ◽  
Green Gram ◽  
Phosphorus Use Efficiency ◽  
P Fertilization ◽  
Physiological Efficiency ◽  
Net Returns ◽  
Use Efficiency ◽  
P Balance ◽  
Treated Plot ◽  
Crop Sequence

The relative the maximum agronomical phosphorus use efficiency was recorded (18.0 kg/kg) with the T8F1 treated plot. While the physiological efficiency was higher (205.8, 204.9, 204.8 and 200.9 kg/kg) with the application of T12F1, T6F1, T14F2 and T13F1 treated plots, respectively. The phosphorus use efficiency was maximum (40.8 kg/kg) with the application of T8F1. Highest net monetary returns from maize were (T8, 58390 /h followed by (T5, 57817 /ha), (T10, 55756 /ha) and (T14, 55348/ha). The highest net returns from green gram 76808 per hectare with B:C ratio of 3.8 was observed under the treatment T8F1 followed by treatment T8F2 with net returns of 69676 per hectare and B:C ratio of 3.4. The lowest net realization of 14905 and 14818 per hectare and B:C ratio of 0.7 was noted under T2F1 and T2F2 plots. on the basis of maize equelvent yield the maximium net returns was recorded under treatment T8 131632 follwed by T10, 119881 and T14, 117446 while B:C ratio was higher under treatment T10 (3.1) fallowed by treatment T8 (3.0). The highest balance of available P2O5 was recorded after harvesting green gram with the addition of (T8F1) and (T8F2) treatments respectively fallowed (T7F2), (F5F1), and (T5F2) treatments respectively.

scholarly journals Strategies for Improving Phosphorus Use Efficiency in Lettuce Grown on Histosols

EDIS ◽  
2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Gustavo Kreutz ◽  
Jehangir Bhadha ◽  
Guodong Liu ◽  
Marcio Resende ◽  
Alan Wright ◽  
...  
Keyword(s):  
Environmental Risks ◽  
Environmental Concerns ◽  
Phosphorus Use Efficiency ◽  
P Fertilization ◽  
Global Demand ◽  
Use Efficiency ◽  
P Fertilizers

The global demand for P fertilizers has been significantly increasing, resulting in higher costs and environmental concerns associated with eutrophication. Fertilizer expenses and environmental risks can be reduced through the implementation of sustainable strategies. This new 6-page publication of the UF/IFAS Horticultural Sciences Department compiles several strategies to improve the utilization of P fertilization in lettuce grown in the Everglades Agricultural Area.https://edis.ifas.ufl.edu/hs1423

Effect of Phosphorus on Yield, Nutrient Acquisition and Use Efficiency of Groundnut in West Bengal, India

2020 ◽  
Author(s):  
Everest Lepcha ◽  
Shyamal Kheroar ◽  
Debjani Halder ◽  
Swapan Kumar Barman ◽  
Kausik Mandal ◽  
...  
Keyword(s):  
Oil Content ◽  
Nutrient Acquisition ◽  
Utilization Efficiency ◽  
Phosphorus Fertilization ◽  
Chemical Compositions ◽  
Phosphorus Use Efficiency ◽  
Pod Yield ◽  
Physiological Efficiency ◽  
Use Efficiency ◽  
Phosphorus Application

Background: Phosphorus is the crucial element to enhance yields as well bio-chemical properties namely protein and oil content in groundnut. Buildup of insoluble phosphates and chemical fixation in soil reduces phosphorus consumption ability in plants. Phosphorus use efficiency (PUE) can be increased with higher levels of phosphorus rate. The study was framed to investigate the effect of phosphorus fertilization on yield, nutrient acquisition, use efficiency and bio-chemical compositions of groundnut. Methods: The experiment was conducted in summer seasons of 2016 and 2017, using split plot design with three varieties (‘JL-24’, ‘Gangapuri’, ‘TAG-24’) in main plot and four fertilization levels (0, 40, 60, 80kg P2O5 ha-1) in sub plots. Result: The study revealed that pod yield enhanced significantly by 15.4%, 27.3% and 39.9% with increase in fertilization rates from 40kg to 80kg ha-1 compare to unfertilized plots. Protein and oil content showed a positive response with phosphorus application. Agronomic efficiency, recovery efficiency and utilization efficiency were also increased with phosphorus rates, whereas, partial factor productivity, agro-physiological efficiency and physiological efficiency had decreasing trends. ‘Gangapuri’ gave higher pod yield (1.80t ha-1), protein (24.27%) and oil (45.41%) content than other selected varieties. Enhanced phosphorus rate also increases nutrient uptake in groundnut.

scholarly journals Modeling of Phosphorus Nutrition to Obtain Maximum Yield, High P Use Efficiency and Low P-Loss Risk for Wheat Grown in Sandy Calcareous Soils

Agronomy ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1950
Author(s):  
Zhanyao Hu ◽  
Zheli Ding ◽  
Hatim M. Al-Yasi ◽  
Esmat F. Ali ◽  
Mamdouh A. Eissa ◽  
...  
Keyword(s):  
Maximum Yield ◽  
Wheat Yield ◽  
Critical Values ◽  
Phosphorus Use Efficiency ◽  
P Fertilization ◽  
P Values ◽  
Exponential Models ◽  
P Use Efficiency ◽  
P Loss ◽  
Use Efficiency

Fertilization with high levels of phosphorus increases the risk of environmental pollution. Identification of critical values of P in soil (SOP) and in plant tissues (PiP) is essential for achieving the maximum wheat yield without P loss. The critical value is the value of P which gives the optimum yield; the response of crop yield to P fertilization above this value is not predictable or nil. Here, a 4-year field experiment was conducted to identify the SOP and PiP for achieving maximum yield of bread wheat using 11 rates of P fertilization (0, 15, 30, 45, 60, 75, 90, 105, 120, 135, and 150 kg P2O5 ha−1). The linear–linear and Mitscherlich exponential models were employed to estimate the PiP and SOP. The degree of phosphorus saturation (DPS) was used to assess the potential environmental risk; furthermore, phosphorus use efficiency (PUE) was also calculated under the studied fertilization levels. Phosphorus in soil and wheat plant was affected by the application rates and growing seasons. Increasing P fertilization rates led to gradual increases in soil and plant P. The SOP ranged between 21 and 32 mg kg−1, while the PiP ranged between 6.40 and 7.49 g kg−1. The critical values of P calculated from the Mitscherlich exponential models were 20% higher than those calculated from the linear–linear models. Adding levels of P fertilization ≥90 kg P2O5 ha−1 leads to higher potentials of P runoff and leaching, in addition, PUE decreased sharply under high P fertilization levels. The response of wheat yield to P fertilization in sandy calcareous soil is predictable below Olsen P values of 21 mg kg−1. Identification of critical P values for wheat production is of great importance to help policy makers improve P use efficiency and attain optimum wheat yield under eco-friendly environmental conditions by eliminating the accumulation of excess P fertilizers in soil and water.

scholarly journals Identification of Biological Efficient and Profitable Cropping Systems in Central Plain Zone of Uttar Pradesh

2021 ◽  
pp. 30-37
Author(s):  
Rentapalli Balaji ◽  
Karam Husain ◽  
Uma Shankar Tiwari
Keyword(s):  
Production Efficiency ◽  
Cropping Systems ◽  
Uttar Pradesh ◽  
Green Gram ◽  
Black Gram ◽  
System Productivity ◽  
Land Use Efficiency ◽  
Use Efficiency ◽  
Crop Sequence ◽  
Potato Onion

A field experiment was executed with ten crop sequences during 2016-17 at C.S.Azad University of Agriculture and Technology, Kanpur, Uttar Pradesh. All these sequences were evaluated for their system productivity, production efficiency, land use efficiency and economic analysis. Highest system productivity 320.43 q REY /ha was obtained through maize + black gram – potato – onion crop sequence followed by maize – garlic – green gram (291.1 q REY /ha). Highest land use efficiency (90.1%) measured through Scented rice – wheat –okra crop sequence while maximum production efficiency 121.83 kg/ha/ day was achieved by maize + black gram – potato – onion crop sequence. The highest net return of Rs.282799.0 /ha, crop profitability of Rs. 1075.28 /ha / day and system profitability of Rs. 774.79 /ha/day was obtained through maize + black gram – potato – onion followed by maize – garlic – green gram (G+R) crop sequence, while highest return per rupee investment (1:3.24) was computed on hybrid rice- wheat cropping system followed by maize – mustard- onion crop sequence (1: 3.21). Electrochemical properties were also evaluated in each cropping sequence. On the basis of different biological indices and economical analysis maize + black gram – potato – onion crop sequence observed as biological efficient followed by maize – garlic – green gram (G+R) crop sequence over all other cropping systems.

Changes in soil phosphorus balance and phosphorus-use efficiency under long-term fertilization conducted on agriculturally used Chernozem in Germany

2018 ◽  
Vol 98 (4) ◽  
pp. 650-662 ◽  
Author(s):  
Tetiana Medinski ◽  
Dirk Freese ◽  
Thomas Reitz
Keyword(s):  
Soil Phosphorus ◽  
Spring Barley ◽  
Farmyard Manure ◽  
Available P ◽  
Phosphorus Use Efficiency ◽  
P Fertilization ◽  
Mineral N ◽  
Efficient Treatment ◽  
Soil P ◽  
Use Efficiency

This study investigates changes in soil phosphorus (P) in different fertilization treatments applied since 1902 on Chernozem soil at a “Static Fertilization Experiment” in Germany. Total and plant-available soil P, and soil P balances were assessed at 0–30, 30–60, and 60–90 cm depth layers in unfertilized “Zero”, mineral “NK” and “NPK”, and combined mineral and organic “FYM + NK” (farmyard manure + NK) and “FYM + NPK” fertilization treatments. P-use efficiencies were determined for each crop in rotation (sugar beet, spring barley, potato, and winter wheat). The 110 yr of P fertilization at rates between 22 and 55 t ha−1 yr−1 resulted in a significant increase of available P contents. P stocks increased up to 60 cm depth. Total P accumulation comprised 1.4 t ha−1 for NPK, 1.3 t ha−1 for FYM + NK, and 3.1 t ha−1 for FYM + NPK. Crops cultivation without P fertilization in Zero and NK treatments resulted in negative P balances and reduction of available P below recommended levels. Reduction of mineral P application rates after 1981, along with crop variety-dependent yield increases, resulted in an improved P-use efficiency. An organic fertilization combined with mineral N and K fertilizers (FYM + NK) was found to be the most P-efficient treatment for Chernozem soils.

Biochemical Composition and Phosphorus Use Efficiency in Some Mixtures

2016 ◽  
Vol 5 (07) ◽  
pp. 4694 ◽  
Author(s):  
Viliana Vasileva ◽  
Anna Ilieva
Keyword(s):  
Perennial Ryegrass ◽  
Biochemical Composition ◽  
Plant Biomass ◽  
Soluble Sugars ◽  
Subterranean Clover ◽  
Water Soluble ◽  
Birdsfoot Trefoil ◽  
Phosphorus Use Efficiency ◽  
Forage Crops ◽  
Use Efficiency

In pot trial the biochemical composition and phosphorus use efficiency of birdsfoot trefoil, sainfoin and subterranean clover grown pure and in mixtures with perennial ryegrass in the next ratios were studied in the Institute of Forage Crops, Pleven, Bulgaria: birdsfoot trefoil + perennial ryegrass (50:50%); sainfoin + perennial ryegrass (50:50%); subterranean clover + perennial ryegrass (50:50%); birdsfoot trefoil + subterranean clover + perennial ryegrass (33:33:33%); sainfoin + subterranean clover + perennial ryegrass (33:33:33%). The highest crude protein content was found in the aboveground mass of birdsfoot trefoil (19.17%) and sainfoin (19.30%). The water soluble sugars contents in mixtures was found higher compared to the pure grown legumes. Birdsfoot trefoil showed the highest phosphorus use efficiency for plant biomass accumulation and nodules formation. In mixtures the phosphorus use efficiency was found be higher as compared to the same in pure grown legumes.

Evaluation of Finger Millet Varieties under Rainfed Condition of Eastern India

2017 ◽  
Vol 4 (03) ◽  
Author(s):  
M. K. Singh ◽  
VINOD KUMAR ◽  
SHAMBHU PRASAD
Keyword(s):  
Field Experiment ◽  
Finger Millet ◽  
Yield Potential ◽  
Growing Degree Days ◽  
Eastern India ◽  
Degree Days ◽  
Rainfed Condition ◽  
Net Returns ◽  
Humid Environment ◽  
Use Efficiency

A field experiment was carried out during the kharif of 2014 and 2015 to evaluate the yield potential, economics and thermal utilization in eleven finger millet varieties under the rainfed condition of the sub-humid environment of South Bihar of Eastern India. Results revealed that the significantly higher grain yield (20.41 q ha-1), net returns (Rs 25301) and B: C ratio (1.51) was with the finger millet variety ‘GPU 67’ but was being at par to ‘GPU28’and ‘RAU-8’, and significantly superior over remaining varieties. The highest heat units (1535.1oC day), helio-thermal units (7519.7oC day hours), phenothermal index (19.4 oC days day-1) were recorded with variety ‘GPU 67’ followed by ‘RAU 8’ and ‘GPU 28’ and lowest in ‘VL 149’ at 50 % anthesis stage. Similarly, the highest growing degree days (2100 oC day), helio-thermal units (11035.8 oC day hours) were noted with ‘GPU 67’ followed by ‘RAU 8’ and ‘GPU 28’ at maturity. The highest heat use efficiency (0.97 kg ha-1 oC day) and helio-thermal use efficiency (0.19 kg ha-1 oC day hour) were in ‘GPU 67’ followed by ‘VL 315’.

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