Search

Integrated nutrient management (INM) practices and suitable cropping systems are an effective and promising way for enhancing crop productivity. However, the impact of proper INM practices and cultivation methods in rice cropping systems in dry tracts remains unclear. The field study evaluated the suitable cropping system under different rice establishment methods with INM practices in a sequential cropping system( rice-black gram, rice-maize, and rice-groundnut). Treatments were designed as two rice establishment methods [Direct Seeded Rice (DSR) and Transplanted Rice (TPR)] and five INM practices [RDF-Recommended Dose of Fertilizer (120:40:40 kg NPK ha-1) alone, RDF + Poultry manure compost @ 5 t ha-1, RDF+ Coir pith compost @ 5 t ha-1, RDF+ Green manure @ 6.25 t ha-1 and RDF-Green leaf manure @ 6.25 t ha-1]. TPR with the INM practice of RDF + poultry manure compost @ 5 t ha-1 recorded maximum productive tillers m-2 (351), number of filled grains panicle-1 (130.2), grain yield (6709 kg ha-1) and straw yield (9015 kg ha-1) of rice. Rice fallow crops (black gram, maize and groundnut) recorded 10 – 24,10-18 and 10 - 21 % higher values of yield components and yield, respectively, in DSR with INM treatment of RDF + Green manure @ 6.25 t ha-1 . Thus, RDF plus green manure or poultry manure application is an apt INM practice for a rice-based sequential cropping system under DSR, and the rice-black gram is an economical and sustainable cropping system for dry tracts of the southern zone of Tamil Nadu.

A field study was conducted during 2021-22 at the Research field of All India Coordinated Research Project for Dryland Agriculture (AICRPDA), Dr. Panjabrao Deshmukh Krishi Vidyapeeth, (Dr. PDKV) Akola, Maharashtra (India), on an ongoing long-term experiment initiated in 1987-88 under cotton + green gram (1:1) intercropping system in Vertisols. The eight treatments comprised of a control, sole use of organics and chemical fertilizers, and integration of organics with chemical fertilizers to partially substitute Nitrogen (N). The results after 35th cycle revealed that the uptake of N, Phosphorus (P), and Potassium (K) was significantly higher in Integrated Nutrient Management (INM) treatments, particularly the treatments T6 and T7 where 50 percent N was substituted by either gliricidia or Farm Yard Manure (FYM). Further, the various parameters of nutrient use efficiency of N, P, and K were also found to be significantly higher in INM treatments followed by T2 (100% RDF). Therefore, the present investigation concludes that under the cotton + green gram intercropping system in Vertisols, INM that involves conjoint use of different nutrient sources appears to be a promising strategy for improvement in fertilizer use efficiency as a whole including Nutrient Use Efficiency (NUE).

Jedan od uzroka sve višeg nivoa stresa među gradskom populacijom jeste buka od saobraćaja. Pored buke čiji je najčešći uzrok drumski ili železnički saobraćaj, karakterističnu vrstu buke proizvodi vazdušni saobraćaj. U ovom radu biće predstavljena analiza buke prouzrokovana helikopterom. Cilj rada je da predstavi metodologiju proračuna buke prouzrokovane helikopterima primenom proračunskog modela i programskog paketa kreiranih od strane Američke federalne uprave za vazduhoplovstvo(FAA). Rad ukazuje na osnovne prednosti i mane proračuna buke primenom ove metodologije.

Jedan od uzroka sve višeg nivoa stresa među gradskom populacijom jeste buka od saobraćaja. Pored buke čiji je najčešći uzrok drumski ili železnički saobraćaj, karakterističnu vrstu buke proizvodi vazdušni saobraćaj. U ovom radu biće predstavljena analiza buke prouzrokovana helikopterom. Cilj rada je da predstavi metodologiju proračuna buke prouzrokovane helikopterima primenom proračunskog modela i programskog paketa kreiranih od strane Američke federalne uprave za vazduhoplovstvo(FAA). Rad ukazuje na osnovne prednosti i mane proračuna buke primenom ove metodologije.

There has been increasing interest in ice nucleation research in the last decade. To identify important gaps in our knowledge of ice nucleation processes and their impacts, two international workshops on ice nucleation were held in Vienna, Austria in 2015 and 2016. Experts from these workshops identified the following research needs: (1) uncovering the molecular identity of active sites for ice nucleation; (2) the importance of modeling for the understanding of heterogeneous ice nucleation; (3) identifying and quantifying contributions of biological ice nuclei from natural and managed environments; (4) examining the role of aging in ice nuclei; (5) conducting targeted sampling campaigns in clouds; and (6) designing lab and field experiments to increase our understanding of the role of ice-nucleating particles in the atmosphere. Interdisciplinary teams of scientists should work together to establish and maintain a common, unified language for ice nucleation research. A number of commercial applications benefit from ice nucleation research, including the production of artificial snow, the freezing and preservation of water-containing food products, and the potential modulation of weather. Additional work is needed to increase our understanding of ice nucleation processes and potential impacts on precipitation, water availability, climate change, crop health, and feedback cycles.

There has been increasing interest in ice nucleation research in the last decade. To identify important gaps in our knowledge of ice nucleation processes and their impacts, two international workshops on ice nucleation were held in Vienna, Austria in 2015 and 2016. Experts from these workshops identified the following research needs: (1) uncovering the molecular identity of active sites for ice nucleation; (2) the importance of modeling for the understanding of heterogeneous ice nucleation; (3) identifying and quantifying contributions of biological ice nuclei from natural and managed environments; (4) examining the role of aging in ice nuclei; (5) conducting targeted sampling campaigns in clouds; and (6) designing lab and field experiments to increase our understanding of the role of ice-nucleating particles in the atmosphere. Interdisciplinary teams of scientists should work together to establish and maintain a common, unified language for ice nucleation research. A number of commercial applications benefit from ice nucleation research, including the production of artificial snow, the freezing and preservation of water-containing food products, and the potential modulation of weather. Additional work is needed to increase our understanding of ice nucleation processes and potential impacts on precipitation, water availability, climate change, crop health, and feedback cycles.

There has been increasing interest in ice nucleation research in the last decade. To identify important gaps in our knowledge of ice nucleation processes and their impacts, two international workshops on ice nucleation were held in Vienna, Austria in 2015 and 2016. Experts from these workshops identified the following research needs: (1) uncovering the molecular identity of active sites for ice nucleation; (2) the importance of modeling for the understanding of heterogeneous ice nucleation; (3) identifying and quantifying contributions of biological ice nuclei from natural and managed environments; (4) examining the role of aging in ice nuclei; (5) conducting targeted sampling campaigns in clouds; and (6) designing lab and field experiments to increase our understanding of the role of ice-nucleating particles in the atmosphere. Interdisciplinary teams of scientists should work together to establish and maintain a common, unified language for ice nucleation research. A number of commercial applications benefit from ice nucleation research, including the production of artificial snow, the freezing and preservation of water-containing food products, and the potential modulation of weather. Additional work is needed to increase our understanding of ice nucleation processes and potential impacts on precipitation, water availability, climate change, crop health, and feedback cycles.

There has been increasing interest in ice nucleation research in the last decade. To identify important gaps in our knowledge of ice nucleation processes and their impacts, two international workshops on ice nucleation were held in Vienna, Austria in 2015 and 2016. Experts from these workshops identified the following research needs: (1) uncovering the molecular identity of active sites for ice nucleation; (2) the importance of modeling for the understanding of heterogeneous ice nucleation; (3) identifying and quantifying contributions of biological ice nuclei from natural and managed environments; (4) examining the role of aging in ice nuclei; (5) conducting targeted sampling campaigns in clouds; and (6) designing lab and field experiments to increase our understanding of the role of ice-nucleating particles in the atmosphere. Interdisciplinary teams of scientists should work together to establish and maintain a common, unified language for ice nucleation research. A number of commercial applications benefit from ice nucleation research, including the production of artificial snow, the freezing and preservation of water-containing food products, and the potential modulation of weather. Additional work is needed to increase our understanding of ice nucleation processes and potential impacts on precipitation, water availability, climate change, crop health, and feedback cycles.

Organic agriculture has emerged as an important priority area globally in view of the growing consciousness for safe and healthy food, long term sustainability and environmental concerns despite being contentious in history. Green revolution although paved way for developing countries in self-sufficiency of food but sustaining production against the limited natural resource base demands has shifted steadily from “resource degrading” chemical agriculture to “resource protective” organic agriculture. The essential concept remains the same, i.e., to go back to the arms of nature and take up organic farming to restore the loss. Organic farming emphasizes on rotating crops, managing pests, diversifying crops and livestock and improving the soil. The rainfed areas particularly north-eastern regions where least or no utilization of chemical inputs due to poor resources provides considerable opportunity for promotion of organic farming thereby reflecting its vast but unexplored scope. However, significant barriers like yield reduction, soil fertility enhancement, integration of livestock, marketing and policy etc., arise at both macroscopic and microscopic levels; making practically impossible the complete adoption of ‘pure organic farming’; rather some specific area can be diverted to organic farming and thus a blend of organic and other innovative farming systems is needed. Adoption of Integrated Green Revolution Farming can be possible to a large extent, where the basic trends of green revolution are retained with greater efficiency and closer compatibility to the environment. This review paper attempts to present the recent global and regional scenario of organic farming particularly highlighting the scope, prospects and constraints in the northern areas.

The present investigation was conducted to study the influence of integrated nutrient management on fertility build up in a Typic Haplaquept soil as well as its effect on yield and quality parameters of rapeseed (Brassica campestris L. var. yellow sarson). Treatments comprised of recommended doses of N, P and K fertilizers (RDF) in presence and absence of FYM along with different doses of S and Zn either alone or in combination. Results revealed that in general, available N, P, K, S and Zn in soil decreased with increase in the period of crop growth. Addition of FYM increased organic carbon content in soils (upto 104.98 g kg-1increase over initial value). Application of elemental S and Zn-EDTA increased SO4-2 content (upto 101.03 kg ha-1 increase over initial value) in S-treated and DTPA extractable Zn content (upto 0.3 mg kg-1 increase over initial value) in Zn-treated systems respectively. Combined application of higher doses of S and Zn along with FYM and recommended doses of N, P and K fertilizers increased N, P, K, S and Zn uptake by rapeseed crop. Highest seed yield (14.2 q ha-1) as well as oil (43.2 %) and protein contents (21.82 %) were recorded in rapeseed which received comparatively higher doses of S and Zn along with FYM and RDF.

A field experiment was conducted during the year 2013-14 at Agronomy Research Farm of CCS Haryana Agricultural University, Hisar (India). The experiment consisting of twelve treatments was laid out in randomized block design with three replications. Grain yield of pearl millet (3012 kg/ha) was recorded highest in T6 (50 % RD-NP + 50 % N through FYM). Yield contributing characters were recorded highest in T6 (50 % RD-NP + 50 % N through FYM in pearl millet and 100 % RD-NP in wheat) in wheat crop. In wheat crop, treatment T6 recorded highest growth characters and yield contributing characters. Similarly, highest grain as well as biological yield was recorded in T6. Highest protein content, protein yield, sedimentation value and hectoliter weight was also recorded in T6. Highest grain yield of both pearl millet and wheat (5582 kg/ha) in pearl millet-wheat cropping system was obtained with the application of 50 % RD-NP + 50 % N through FYM in pearl millet and 100 % RD-NP in wheat while lowest yield of pearl millet (976 kg/ha) and wheat (1190 kg/ha) was recorded in T1 (control).

The integrated nutrient management (INM) has profound influence on sustaining crop productivity and fertility status of soil. The manurial field experiment was conducted at Paschim Medinipur, West Bengal for evaluating the performance of chemical fertilizer and organic manure on nitrogen availability in different forms in soil and also on the content of nitrogen in different parts of rice (Oryza sativa cv. Annada) and potato (Solanum tuberosum cv. Kufrijyoti) during different growth stages. Application of FYM and RDF150 in combination had good impact on nitrogen dynamics related to crop growth among other treatment combinations. FYM and RDF150 alone also imparted good impact on nutrient availability and yield of two experiment crops (rice and potato). Experiment revealed that incorporation of commercial concentrated organic manure with RDF150 exerted good impact besides FYM combination with inorganic fertilizers.

El software INM 7.0. es un programa de simulación del ruido de aviones, pudiendo evaluar en una ciudad o un punto concreto, cuánto puede afectar el ruido que produce un avión determinado en una de sus operaciones de vuelo. En este Trabajo Final de Máster se explica su funcionamiento con todas sus posibilidades de manejo.

El software INM 7.0. es un programa de simulación del ruido de aviones, pudiendo evaluar en una ciudad o un punto concreto, cuánto puede afectar el ruido que produce un avión determinado en una de sus operaciones de vuelo. En este Trabajo Final de Máster se explica su funcionamiento con todas sus posibilidades de manejo.

El software INM 7.0. es un programa de simulación del ruido de aviones, pudiendo evaluar en una ciudad o un punto concreto, cuánto puede afectar el ruido que produce un avión determinado en una de sus operaciones de vuelo. En este Trabajo Final de Máster se explica su funcionamiento con todas sus posibilidades de manejo.

A permanent plot field experiment is continuing under irrigated condition from 1984-85 at AICRP on Cropping Systems Research Unit, Dr.PDKV, Akola with a view to find out effect of integrated nutrient management on soil fertility and productivity of sorghum-wheat crop sequence. The pooled results for 24 yrs (1984-85 to 2008-09) revealed that the highest system productivity (7.14 t/ha) was recorded with application of 50% RDF through inorganic + 50% N through FYM to sorghum and 100% RDF to wheat crop in sequence which was comparable to inorganic fertilizer application i.e. 100% RDF to both crops. Maximum net monetary return (48,698 Rs/ha), and B:C ratio (3.05) was observed with 50% RDF through inorganic + 50% N through FYM to kharif sorghum and 100% RDF to wheat. Application of RDF through inorganic fertilizer to both crops showed consistency in yield even after 24 years. Reduction in yield was noticed under reduced fertilizer doses. However, increased yield was noticed due to integration of fertilizers. Substitution of 25% and 50% N applied through crop residue, leucaena lopping and FYM produced comparable and higher yield over 100% NPK through inorganic fertilizer.Integration of nutrients resulted in built up of organic C to the extend of 6.35 g/kg of soil as against 0.42 gram per kg soil at the initiation of experiment (1984-85) The available nutrient status after 24 years was 407, 45 and 441 NPK kg/ha respectively as against initial values of 209, 11 and 350 NPK kg/ha respectively. The higher value of sustainable yield index (0.57) was noticed with integration of nutrients i.e. 50% N through inorganic + 50% N through FYM followed by 100% NPK to wheat through inorganic source. Sorghum-Wheat crop sequence was more sustainable when integration of nutrients through crop residue (0.45) Leucaena lopping (0.53) and FYM (0.57) were taken with inorganic fertilizer. Marginal improvement in pH and EC was observed with integration of nutrients. Drastic reduction in crop yield

A permanent plot field experiment is continuing under irrigated condition from 1984-85 at AICRP on Cropping Systems Research Unit, Dr.PDKV, Akola with a view to find out effect of integrated nutrient management on soil fertility and productivity of sorghum-wheat crop sequence. The pooled results for 24 yrs (1984-85 to 2008-09) revealed that the highest system productivity (7.14 t/ha) was recorded with application of 50% RDF through inorganic + 50% N through FYM to sorghum and 100% RDF to wheat crop in sequence which was comparable to inorganic fertilizer application i.e. 100% RDF to both crops. Maximum net monetary return (48,698 Rs/ha), and B:C ratio (3.05) was observed with 50% RDF through inorganic + 50% N through FYM to kharif sorghum and 100% RDF to wheat. Application of RDF through inorganic fertilizer to both crops showed consistency in yield even after 24 years. Reduction in yield was noticed under reduced fertilizer doses. However, increased yield was noticed due to integration of fertilizers. Substitution of 25% and 50% N applied through crop residue, leucaena lopping and FYM produced comparable and higher yield over 100% NPK through inorganic fertilizer.Integration of nutrients resulted in built up of organic C to the extend of 6.35 g/kg of soil as against 0.42 gram per kg soil at the initiation of experiment (1984-85) The available nutrient status after 24 years was 407, 45 and 441 NPK kg/ha respectively as against initial values of 209, 11 and 350 NPK kg/ha respectively. The higher value of sustainable yield index (0.57) was noticed with integration of nutrients i.e. 50% N through inorganic + 50% N through FYM followed by 100% NPK to wheat through inorganic source. Sorghum-Wheat crop sequence was more sustainable when integration of nutrients through crop residue (0.45) Leucaena lopping (0.53) and FYM (0.57) were taken with inorganic fertilizer. Marginal improvement in pH and EC was observed with integration of nutrients. Drastic reduction in crop yield

FP-01/CS075, FA-65/CS033, The U.S. Department of Transportation, John A. Volpe National Transportation Systems Center (Volpe Center), Environmental Measurement and Modeling Division, is providing technical support to the Federal Aviation, Administration (FAA), with the cooperation of the National Park Service (NPS), toward the development of Air, Tour Management Plans (ATMPs) for all National Parks with commercial air tours. In April, May, and August, 2002, the Volpe Center measured noise for seven aircraft, six of which have been identified as participating in, commercial air tour operations over units of the NPS, including the Maule M-7-235C, the Piper Twin Comanche PA, 30, the Piper Navajo Chieftain PA-31-350, the Piper Warrior PA-28-161, the Eurocopter EC-130 helicopter, and, the Robinson R-22 helicopter. The Beech 1900D was measured as a target of opportunity for the Volpe Center’s, Project supporting the development of FAA’s Integrated Noise Model. This document describes the planning and, execution of the study at Fitchburg Municipal Airport in Fitchburg, Massachusetts. Additionally, the data, reduction procedures and data adjusted to standard conditions are presented.

FA765/A7012, DTFA01-93-C-00078, Task Orders 9,14,19, The Federal Aviation Administration, Office of Environment and Energy (FAA, AEE-120), has developed Version 5.1 of the Integrated Noise Model (INM) with support from the, John A. Volpe National Transportation Systems Center, Acoustics Facility (Volpe Center), for development of the acoustic computation module and from the ATAC Corporation for, systems integration, development of the graphical interface, and methods for computing, aircraft flight profiles and constructing flight paths, which are processed by the, acoustics module., The Technical Manual for INM 5.1 describes the flight-path methodology (Chapter 2), along with the basic methodology employed by the INM to compute a noise-level or timeabove, metric at a single, user-specified observer, or at an evenly-spaced, regular grid, of observers (Chapter 3)., The noise/time computation methodology is presented in a concise step-by-step fashion, and includes a description of: (1) the computation of the flight-segment geometric and, physical parameters; (2) the flight-segment noise-level interpolation process; (3) the, acoustic impedance adjustment; (4) the flight-segment noise-fraction adjustment for, exposure-based metrics; (5) the airspeed adjustment for exposure-based metrics; (6) the, lateral attenuation adjustment; (7) the ground-based directivity adjustment for, observers behind start-of-takeoff-roll, as well as for computing metrics associated, with runup operations; (8) the metric computation process; and (9) the development of a, recursively-subdivided irregular grid methodology, which is used for computing noise, contours (Chapter 4).

VX83 - BS243, FA4SCD - LTA59, The National Aeronautics and Space Administration (NASA), Langley Research Center (LaRC) and the Environmental Measurement and Modeling Division of the United States Department of Transportation’s John A. Volpe National Transportation Systems Center (Volpe) conducted a noise measurement study to examine the sound level directivity pattern behind aircraft start-of-takeoff roll. This report discusses the procedures and methodologies used to measure and quantify data acquired from the Study. This is a revision to the December 2012 that addresses a rounding error in equation 4 (Section 5.4) and the supporting text in Section 5 and Appendix F.

This project has three main objectives. The first objective is to model noise from complete aerobatic routines for a range of aircraft. The second is to compare modeled and previously measured aircraft noise from complete aerobatic routines for a range of aircraft. The third is to model the noise from up to 50 daily aerobatic routines for a range of aircraft. The end result of this analysis is a matrix of modeled noise results for a range of aircraft performing a variety of aerobatic routines. The FAA can now utilize these results to help set the technical threshold for approving NEPA analyses for aircraft performing aerobatic routine represented within the matrix.

The U.S. Department of Transportation, John A. Volpe National Transportation Systems Center (Volpe Center), Environmental Measurement and Modeling Division, is providing technical support to the Federal Aviation Administration (FAA), with the cooperation of the National Park Service (NPS), toward the development of Air Tour Management Plans (ATMPs) for National Parks with commercial air tours. In October 2006, January 2007 and October 2008, the Volpe Center measured source noise data for eight aircraft that have been identified as participating in commercial air tour operations over National Parks: Cessna 182 Skylane, Cessna 208B Caravan I, Dornier 228, Dornier 328, Piper PA-42 Cheyenne III, Bell 407, Robinson R44 Raven, and Schweizer 300C. This document describes the planning and execution of the noise studies. Additionally, the data reduction procedures and data adjusted to standard conditions are presented.