scholarly journals Some Basic Considerations on Agricultural Mechanization in West Pakistan

1969 ◽  
Vol 9 (3) ◽  
pp. 273-308 ◽  
Author(s):  
Swadesh R. Bose ◽  
Edwin H. Clark II
Keyword(s):  
Economies Of Scale ◽  
Winter Season ◽  
Weather Conditions ◽  
Small Farmers ◽  
Price Support ◽  
Infinitely Divisible ◽  
Agricultural Mechanization ◽  
Incentive Policies ◽  
New Varieties ◽  
Agricultural Price

West Pakistan is at present experiencing remarkable production increases in agriculture. These appear to be resulting from the rapid adoption of new varieties of seeds, the increased use of fertilizers and massive investments in tubewells — coupled with, during the 1968 rabi (winter) season, favourable weather conditions. Price-incentive policies, particularly agricultural price support, have helped considerably in the quick adoption of these innovations by farmers. A distinctive element of all the innovations so far promoted is that they are com¬plementary to labour. There are virtually no economies of scale associated with their use. New seeds and fertilizers are as productive on small holdings as on large. The private tubewells are sufficiently inexpensive, even the small farmers can afford to invest in them, at least through partnership. Water, seeds and fertilizers are essentially infinitely divisible inputs. They can benefit the small farmers as much as the large.

HIGH-PROTEIN VARIETIES AND PERSPECTIVE LINES OF SPRING BARLEY

1970 ◽  
pp. 23-25
Author(s):  
O. V. Levakova ◽  
L. M. Eroshenko
Keyword(s):  
Spring Barley ◽  
Weather Conditions ◽  
High Protein ◽  
New Variety ◽  
Breeding Lines ◽  
Feed Value ◽  
New Varieties ◽  
Research Grade ◽  
Range Of Variation ◽  
Variety Testing

The article presents the results of the analysis of the biochemical composition of selected in the competitive variety testing of new varieties and promising lines of spring barley, studied on the experimental field ISA-branch of FGBNU FNAC VIM in 2016-2018. Result of research in different years of water availability among the rooms was allocated a group of high-protein barley with improved feed value: 4 varieties, 2 of which are on the state variety testing, and 2 promising lines. The range of variation of protein content in the grain of the selected samples varied from 13.1 to 14.5 %, lysine – from 0.48 to 0.52 %, weight of 1000 grains-from 48.0 to 53.5 g. According to the data obtained the highest value of protein in grain was observed in krupnosortnogo varieties Zlatoyar (GSI), amounting on average for 14.5 %. The increase was equal to 1.1% in relation to the control variety Yaromir. With an average yield of 6.52 t/ha in the years of research grade Accounting have provided protein per hectare in the amount of 0,94 t/ha. A new variety Sudar´ (GSI) and breeding line 149/4-12 h 788 and 129/1-14 h 907 this indicator has been less productive, however, exceeded the grade Yaromir 0.10 to 0.16 t/ha. Given the higher productivity of new promising varieties and breeding lines, the collection of lysine per unit area they have 12.7, 30.8 per cent was higher than that of the Promej class and 10.6-23.6% more than in the variety Yaromir, which indicates their high biological value. Selected hulless line 1137 h is also an encouraging source of protein and other nutrients of plant origin. The selected lines and new varieties, regardless of weather conditions, were able to ensure the production of high-protein and sources' grain for feed purposes, while maintaining productivity.

scholarly journals Opportunities for winter prescribed burning in mixed conifer plantations of the Sierra Nevada

Fire Ecology ◽  
2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Robert A. York ◽  
Jacob Levine ◽  
Kane Russell ◽  
Joseph Restaino
Keyword(s):  
Sierra Nevada ◽  
Pinus Ponderosa ◽  
Prescribed Burning ◽  
Winter Season ◽  
Basal Area ◽  
Weather Conditions ◽  
Shrub Cover ◽  
Mixed Conifer ◽  
Planted Forests ◽  
Conifer Plantations

Abstract Background Young, planted forests are particularly vulnerable to wildfire. High severity effects in planted forests translate to the loss of previous reforestation investments and the loss of future ecosystem service gains. We conducted prescribed burns in three ~35-year-old mixed conifer plantations that had previously been masticated and thinned during February in order to demonstrate the effectiveness of winter burning, which is not common in the Sierra Nevada, California. Results On average, 59% of fine fuels were consumed and the fires reduced shrub cover by 94%. The average percent of crown volume that was damaged was 25%, with no mortality observed in overstory trees 1 year following the fires. A plot level analysis of the factors of fire effects did not find strong predictors of fuel consumption. Shrub cover was reduced dramatically, regardless of the specific structure that existed in plots. We found a positive relationship between crown damage and the two variables of Pinus ponderosa relative basal area and shrub cover. But these were not particularly strong predictors. An analysis of the weather conditions that have occurred at this site over the past 20 years indicated that there have consistently been opportunities to conduct winter burns. On average, 12 days per winter were feasible for burning using our criteria. Windows of time are short, typically 1 or 2 days, and may occur at any time during the winter season. Conclusions This study demonstrates that winter burning can be an important piece of broader strategies to reduce wildfire severity in the Sierra Nevada. Preparing forest structures so that they can be more feasible to burn and also preparing burn programs so that they can be nimble enough to burn opportunistically during short windows are key strategies. Both small landowners and large agencies may be able to explore winter burning opportunities to reduce wildfire severity.

scholarly journals GEOMATIC TECHNIQUES FOR THE OPTIMIZATION OF SKI RESOURCES

2020 ◽  
Vol XLIII-B2-2020 ◽  
pp. 1009-1016
Author(s):  
I. Aicardi ◽  
S. Angeli ◽  
N. Grasso ◽  
A. M. Lingua ◽  
P. Maschio
Keyword(s):  
Heat Waves ◽  
Low Cost ◽  
Winter Season ◽  
Heavy Rain ◽  
Weather Conditions ◽  
Fundamental Aspect ◽  
Carbon Neutrality ◽  
Aerial Vehicle ◽  
Gnss Receivers ◽  
Processing Techniques

Abstract. Climate change is already affecting the entire world, with extreme weather conditions such as drought, heat waves, heavy rain, floods and landslides becoming more frequent, including Europe. In according to Paris agreement and relative European announcement of Carbon neutrality (by 2050), the saving of water and energy supplies is a fundamental aspect in the management of resources in production, sports, hospitality facilities and so on. Some methodologies for the optimization of the consumption of natural resources are required. This article describes an activity aimed at measuring, monitoring and analysing the thickness of the snowpack on the ski slopes during the winter season to permit a sustainable approach of snowmaking in alpine ski areas . The authors propose a methodology based on the integration of multitemporal surface (ground/snow) survey by Autonomous Aerial Vehicle (AAV) and low cost GNSS receivers mounted on snow groomers for a RTK (Real Time Kinematic) solution. To obtain a complete snow surface digital models with poor detailed images on ski slopes, some pre-processing techniques have been analysed to locally improve contrast and details with a local high pass filtering. The methodology has been employed in two study areas (Limone Piemonte, Prato Nevoso) located in the province of Cuneo, in the southern alpine area of Piedmont.

scholarly journals Simultaneous Measurements of Stability Indices and Characteristic Parameters Describing the Snow Cover and the Weather in Fracture Zones of Avalanches

1980 ◽  
Vol 26 (94) ◽  
pp. 65-74 ◽  
Author(s):  
H. Gubler
Keyword(s):  
Snow Cover ◽  
Winter Season ◽  
Processing System ◽  
Weather Conditions ◽  
Fracture Zones ◽  
Characteristic Parameters ◽  
On Line ◽  
Solar Powered ◽  
Snow Temperature ◽  
Stability Indices

AbstractStability indices at different slope aspects and characteristic parameters describing the snow cover and the weather conditions are recorded simultaneously and automatically in potential fracture zones of avalanches during the whole winter season. A remote, solar-powered system including measurements of snow depth, mass flux of wind-blown snow and of the snow temperature profile as well as on-line and off-line data processing has been developed and tested. The results show that this type of data-recording and processing system makes quantitative case studies of natural stability variations possible.

scholarly journals The Accumulated Winter Season Severity Index (AWSSI)

2015 ◽  
Vol 54 (8) ◽  
pp. 1693-1712 ◽  
Author(s):  
Barbara E. Mayes Boustead ◽  
Steven D. Hilberg ◽  
Martha D. Shulski ◽  
Kenneth G. Hubbard
Keyword(s):  
Snow Depth ◽  
Meteorological Parameter ◽  
Winter Season ◽  
Weather Conditions ◽  
Severity Index ◽  
Winter Weather ◽  
Site Specific ◽  
Teleconnection Patterns ◽  
Temperature And Precipitation ◽  
Parallel Index

AbstractThe character of a winter can be defined by many of its features, including temperature averages and extremes, snowfall totals, snow depth, and the duration between onset and cessation of winter-weather conditions. The accumulated winter season severity index incorporates these elements into one site-specific value that defines the severity of a particular winter, especially when examined in the context of climatological values for that site. Thresholds of temperature, snowfall, and snow depth are assigned points that accumulate through the defined winter season; a parallel index uses temperature and precipitation to provide a snow proxy where snow data are unavailable or unreliable. The results can be analyzed like any other meteorological parameter to examine relationships to teleconnection patterns, determine trends, and create sector-specific applications, as well as to analyze an ongoing winter or any individual winter season to place its severity in context.

Dependence of benefits of convection permitting models on large-scale conditions

2020 ◽  
Author(s):  
Danijel Belusic ◽  
Petter Lind ◽  
Oskar Landgren ◽  
Dominic Matte ◽  
Rasmus Anker Pedersen ◽  
...  
Keyword(s):  
Large Scale ◽  
Climate Models ◽  
Climate Model ◽  
Regional Climate ◽  
Rapid Change ◽  
Winter Season ◽  
Storm Track ◽  
Summer Precipitation ◽  
Weather Conditions ◽  
Special Focus

<p>Current literature strongly indicates large benefits of convection permitting models for subdaily summer precipitation extremes. There has been less insight about other variables, seasons and weather conditions. We examine new climate simulations over the Nordic region, performed with the HCLIM38 regional climate model at both convection permitting and coarser scales, searching for benefits of using convection permitting resolutions. The Nordic climate is influenced by the North Atlantic storm track and characterised by large seasonal contrasts in temperature and precipitation. It is also in rapid change, most notably in the winter season when feedback processes involving retreating snow and ice lead to larger warming than in many other regions. This makes the area an ideal testbed for regional climate models. We explore the effects of higher resolution and better reproduction of convection on various aspects of the climate, such as snow in the mountains, coastal and other thermal circulations, convective storms and precipitation with a special focus on extreme events. We investigate how the benefits of convection permitting models change with different variables and seasons, and also their sensitivity to different circulation regimes.</p>

Design and Construction of the World’s First Full-Scale Electrically Conductive Concrete Heated Airport Pavement System at a U.S. Airport

2018 ◽  
Vol 2672 (23) ◽  
pp. 82-94 ◽  
Author(s):  
Hesham Abdualla ◽  
Halil Ceylan ◽  
Sunghwan Kim ◽  
Mani Mina ◽  
Kristen S. Cetin ◽  
...  
Keyword(s):  
Winter Season ◽  
Weather Conditions ◽  
Full Scale ◽  
Sensor Data ◽  
Electrically Conductive ◽  
Sustainable Operations ◽  
Promising Alternative ◽  
Entire Area ◽  
Airport Pavement ◽  
Snow And Ice

Airport agencies spend millions of dollars to remove ice and snow from airport pavement surfaces to achieve accessible, safe, and sustainable operations during the winter. Electrically conductive concrete (ECON) based heated pavement system (HPS) has gained attention as a promising alternative technology for preventing snow and ice accumulation by maintaining pavement surface temperatures above the freezing point. The objective of this study was to demonstrate the world’s first full-scale ECON-based HPS at a U.S. airport. Two ECON slabs were designed and constructed in the General Aviation (GA) apron at the Des Moines International Airport (DSM), Iowa in 2016. Systematic design components were identified, and construction procedures were developed and implemented for ECON-based HPS. Using collected sensor data, the performance of the constructed and remotely-operated ECON slabs was evaluated under real weather conditions at DSM in the 2016–2017 winter season. The results demonstrate that ECON-based HPS have promising deicing and anti-icing capacities, promising to provide uniform heat distribution and prevent snow and ice accumulations on the entire area of application under various winter weather conditions, including extreme cold weather (i.e., arctic blasts).

scholarly journals СОДЕРЖАНИЕ БЕЛКА В ЗЕРНЕ СОРТОВ ОЗИМОЙ ПШЕНИЦЫ ПРИ РАЗЛИЧНЫХ УРОВНЯХ МИНЕРАЛЬНОГО ПИТАНИЯ

2019 ◽  
pp. 23-28
Author(s):  
V.V. Koshelyaev ◽  
V.I. Salnikov ◽  
I.P. Koshelyaeva
Keyword(s):  
Winter Wheat ◽  
Protein Content ◽  
Mineral Nutrition ◽  
Weather Conditions ◽  
Mineral Fertilizers ◽  
Wheat Varieties ◽  
Medium Activity ◽  
Grain Crop ◽  
New Varieties ◽  
Cultivation Techniques

Основным направлением повышения качества зерна является выведение новых сортов, генетически предрасположенных формировать зерно с высоким качеством. Вместе с тем, генетический потенциал сортов способен реализовываться только при конкретных погодных условиях и применении приемов возделывания, благоприятно влияющих на рост и развитие растений. В настоящих исследованиях путем изменения режимов питания растений создавали различные условия для того, чтобы определить возможности сортов формировать урожай зерна с большим содержанием белка. Цель работы оценить и выделить сорта озимой пшеницы, способные реализовать потенциал качества зерна при различных уровнях интенсификации минерального питания. Для достижения цели был заложен двухфакторный полевой опыт. Фактор А сорта озимой пшеницы, фактор В уровни минерального питания. В результате установлено, что сорта озимой пшеницы характеризуются неодинаковыми свойствами накапливать белок в зерне. Высокой активностью накапливать белок при внесении удобрений характеризуется сорт Клавдия 2. Средней активностью сорта Безенчукская 380, Московская 56 и низкой Немчиновская 57, Скипетр и Фатинья. Внесение минеральных удобрений из расчета N16 P16 K16 при посеве осенью и N68 в подкормку весной способствует формированию зерна с более высоким содержанием белка у всех сортов озимой пшеницы.The main direction of improving the quality of grain is the cultivation of new varieties genetically predisposed to form high quality grain. At the same time, the genetic potential of varieties can only be realized under specific weather conditions and the application of cultivation techniques that favourably affect the growth and development of plants. In these studies, various conditions were created by changing plant nutritional regimes in order to determine the possibilities of varieties to form a grain crop with a high protein content. The purpose of the work was to evaluate and highlight varieties of winter wheat that can realize the potential of grain quality at various levels of intensification of mineral nutrition. To achieve the goal, a two-factor field experiment was carried out. Factor A - winter wheat varieties, factor B - levels of mineral nutrition. As a result, it was established that varieties of winter wheat were characterized by unequal properties to accumulate protein in grain. Variety Claudia 2 was characterized by high activity to accumulate protein when fertilizing. Bezenchukskaya 380, Moskovskaya 56 were characterized by medium activity and Nemchinovskaya 57, Scepter and Fatigna - by low. The application of mineral fertilizers at the rate of N16 P16 K16 during sowing in fall and N68 for top dressing in spring contributed to the formation of grain with a higher protein content in all varieties of winter wheat.

scholarly journals IDENTIFIKASI KENDALA PEMBIAYAAN KOMODITAS PERTANIAN SISTEM RESI GUDANG DI INDONESIA

2021 ◽  
Vol 15 (2) ◽  
pp. 277-296
Author(s):  
Karmex Siadari ◽  
M. Syamsul Maarif ◽  
Bustanul Arifin ◽  
Zulkifli Rangkuti Rangkuti
Keyword(s):  
Economies Of Scale ◽  
Descriptive Analysis ◽  
Jel Classification ◽  
Strategic Thinking ◽  
Small Farmers ◽  
Agricultural Commodities ◽  
Agricultural Commodity ◽  
Depth Interviews ◽  
Financing Schemes

Abstrak Pembiayaan komoditas pertanian sistem resi gudang belum berlangsung sesuai harapan di Indonesia. Hal tersebut menurut beberapa studi karena masih banyak permasalahan penghambat. Studi ini mengidentifikasi kendala pembiayaan komoditas pertanian sistem resi gudang di Indonesia. Penelitian dilakukan melalui wawancara mendalam terhadap responden tertentu yang memiliki pengetahuan atau pengalaman pada pembiayaan komoditas pertanian berbasis sistem resi gudang yang diimplentasikan terhadap komoditas pertanian seperti kopi, lada, beras dan jagung. Data yang dikumpulkan diidentifikasi, dikelompokkan dan diklasifikasikan secara terstruktur di dalam pola berfikir strategis dan dianalisa secara analisa deskriptif. Penelitian ini berhasil menemukan faktor penghambat pembiayaan komoditas pertanian sistem resi gudang di Indonesia antara lain: ketidaksesuaian nilai manfaat yang dibangun dengan karakteristik petani di Indonesia khususnya petani kecil; keterbatasan sumber layanan, ketidakcocokan skema dan fitur pembiayaan, harga pembiayaan dan skala ekonomi petani, suplai informasi yang memengaruhi kesadaran pada pembiayaannya. Permasalahan tersebut harus dapat diminimalisasi sehingga meningkatkan aksesibilitas dan kelangsungan pembiayaan sistem SRG pada petani di Indonesia. Kata kunci: Pembiayaan Komoditas Pertanian, Kendala, Sistem Resi Gudang   Abstract Agricultural commodity financing in the warehouse receipt system has not performed as expected in Indonesia. According to several studies, it is due to many obstacles hindering the system to grow. This study identifies the constraints on agricultural commodities financing on the warehouse receipt system. The research was conducted through in-depth interviews with certain respondents who have knowledge or experience in agricultural commodities financing based on a warehouse receipt system implemented on agricultural commodities such as coffee, pepper, rice, and maize. The collected data are identified, grouped, and classified in a structured manner in the pattern of strategic thinking and analyzed by descriptive analysis. The study succeeded to identify the barriers that hindering agricultural commodities financing in warehouse receipt system to grow in Indonesia: the incompatibility of the value built with the characteristics of agriculture business, especially for small farmers; limited financing sources, incompatibility of financing schemes and features, financing prices and farmer economies of scale and supply of information that affects awareness of financing. These problems must be minimized to encourage the accessibility and continuity of financing on WRS for farmers in Indonesia. Keywords: Agricultural Commodity Financing, Contraints, Warehouse Receipt System JEL Classification: D46, F6, F61, F65, Q14

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