scholarly journals Agricultural irrigation scheduling for a crop management system considering water and energy use optimization

2020 ◽  
Vol 6 ◽  
pp. 133-139 ◽  
Author(s):  
Omid Abrishambaf ◽  
Pedro Faria ◽  
Luis Gomes ◽  
Zita Vale
Keyword(s):  
Management System ◽  
Energy Use ◽  
Crop Management ◽  
Irrigation Scheduling ◽  
Agricultural Irrigation

scholarly journals Orchard Level Assessment of Irrigation Performance and Water Productivity of an Irrigation Community in Eastern Spain

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1829
Author(s):  
Herminia Puerto ◽  
Miguel Mora ◽  
Bernat Roig-Merino ◽  
Ricardo Abadía-Sánchez ◽  
José María Cámara-Zapata ◽  
...  
Keyword(s):  
Irrigation Water ◽  
Energy Use ◽  
Water Productivity ◽  
Distribution Networks ◽  
Irrigation Scheduling ◽  
Irrigation Performance ◽  
Irrigation Water Use ◽  
Use Efficiency ◽  
Fruit Orchards ◽  
Peach Trees

Over the last three decades, a great investment effort has been made in the modernization of irrigation in the Valencian Community (Spain). The initial change from distribution networks to pressurized ones and the shift towards drip irrigation systems was followed by improvements in irrigation scheduling, based on agrometeorological data, soil water content sensors, and remote sensing. These improvements are considered adequate for increasing irrigation water use efficiency, but it is difficult to find systematic measurements to assess its impacts on irrigation adequacy along with irrigation productivity in fruit orchards. This work presents the results of a four year assessment of irrigation water and energy use efficiency along with water productivity of a recently established irrigation community in the province of Valencia (Spain). The study was carried out at the orchard level and focused on two fruit crops: persimmon and peach trees. Six irrigation performance indicators, relative water supply (RWS), relative irrigation supply (RIS), yield performance (Yp), global water productivity (WPoverall), output per unit irrigation water (OUI), and the percent of nitrogen fertilization obtained by irrigation water, were defined and calculated for years 2017 to 2020 in 104 persimmon and peach orchards. The results showed that most of the farmers irrigated below the crop water requirements, showing RWS and RIS values less than 1, and there was great variability among farmers, especially in WPoverall and OUI indicators.

scholarly journals Coupling a Bat Algorithm with XGBoost to Estimate Reference Evapotranspiration in the Arid and Semiarid Regions of China

2019 ◽  
Vol 2019 ◽  
pp. 1-16 ◽  
Author(s):  
Yixiu Han ◽  
Jianping Wu ◽  
Bingnian Zhai ◽  
Yanxin Pan ◽  
Guomin Huang ◽  
...  
Keyword(s):  
Air Temperature ◽  
Reference Evapotranspiration ◽  
Meteorological Data ◽  
Bat Algorithm ◽  
Irrigation Scheduling ◽  
Multivariate Adaptive Regression Splines ◽  
Accurate Estimation ◽  
Agricultural Irrigation ◽  
Semiarid Regions ◽  
Arid And Semiarid

Accurate estimation of reference evapotranspiration (ETo) is key to agricultural irrigation scheduling and water resources management in arid and semiarid areas. This study evaluates the capability of coupling a Bat algorithm with the XGBoost method (i.e., the BAXGB model) for estimating monthly ETo in the arid and semiarid regions of China. Meteorological data from three stations (Datong, Yinchuan, and Taiyuan) during 1991–2015 were used to build the BAXGB model, the multivariate adaptive regression splines (MARS), and the gaussian process regression (GPR) model. Six input combinations with different sets of meteorological parameters were applied for model training and testing, which included mean air temperature (Tmean), maximum air temperature (Tmax), minimum air temperature (Tmin), wind speed (U), relative humidity (RH), and solar radiation (Rs) or extraterrestrial radiation (Ra, MJ m−2·d−1). The results indicated that BAXGB models (RMSE = 0.114–0.412 mm·d−1, MAE = 0.087–0.302 mm·d−1, and R2 = 0.937–0.996) were more accurate than either MARS (RMSE = 0.146–0.512 mm·d−1, MAE = 0.112–0.37 mm·d−1, and R2 = 0.935–0.994) or GPR (RMSE = 0.289–0.714 mm·d−1, MAE = 0.197–0.564 mm·d−1, and R2 = 0.817–0.980) model for estimating ETo. Findings of this study would be helpful for agricultural irrigation scheduling in the arid and semiarid regions and may be used as reference in other regions where accurate models for improving local water management are needed.

scholarly journals Energy and the food system

2010 ◽  
Vol 365 (1554) ◽  
pp. 2991-3006 ◽  
Author(s):  
Jeremy Woods ◽  
Adrian Williams ◽  
John K. Hughes ◽  
Mairi Black ◽  
Richard Murphy
Keyword(s):  
Food Production ◽  
Fossil Fuels ◽  
Energy Use ◽  
Food System ◽  
Crop Management ◽  
Cropping System ◽  
Food Prices ◽  
Energy Prices ◽  
Energy Inputs ◽  
The 1960S

Modern agriculture is heavily dependent on fossil resources. Both direct energy use for crop management and indirect energy use for fertilizers, pesticides and machinery production have contributed to the major increases in food production seen since the 1960s. However, the relationship between energy inputs and yields is not linear. Low-energy inputs can lead to lower yields and perversely to higher energy demands per tonne of harvested product. At the other extreme, increasing energy inputs can lead to ever-smaller yield gains. Although fossil fuels remain the dominant source of energy for agriculture, the mix of fuels used differs owing to the different fertilization and cultivation requirements of individual crops. Nitrogen fertilizer production uses large amounts of natural gas and some coal, and can account for more than 50 per cent of total energy use in commercial agriculture. Oil accounts for between 30 and 75 per cent of energy inputs of UK agriculture, depending on the cropping system. While agriculture remains dependent on fossil sources of energy, food prices will couple to fossil energy prices and food production will remain a significant contributor to anthropogenic greenhouse gas emissions. Technological developments, changes in crop management, and renewable energy will all play important roles in increasing the energy efficiency of agriculture and reducing its reliance of fossil resources.

scholarly journals Respon pertumbuhan dan hasil beberapa varietas jagung manis (Zea mays Saccharata sturt. L) akibat takaran bokashi pada sistem Pengelolaan Tanaman Terpadu (PTT) di kabupaten Karawang

Kultivasi ◽  
2018 ◽  
Vol 17 (1) ◽  
Author(s):  
Rommy Andhika Laksono ◽  
Nurcahyo Widyodaru Saputro ◽  
Muhammad Syafi’i
Keyword(s):  
Management System ◽  
Sweet Corn ◽  
Block Design ◽  
Organic Fertilizer ◽  
Crop Management ◽  
Corn Yield ◽  
Corn Production ◽  
Integrated Crop Management ◽  
Randomized Block Design ◽  
Lowland Area

Abstract. Sweet corn production in Indonesia can be increased by intensification program, such as the use of superior cultivars, the use of balanced fertilizer, and the use of organic fertilizer. Objective of the research was to study Integrated Crop Management System, that related to use of fermented organic fertilizer (bokashi) which suitable to sweet corn crop, especially in lowland area of Karawang district. The method of research was experiment. The experimental design was Randomized Block Design, that consisted of 16 treatments and 3 replications. The treatments were 4 bokashi dosage (0, 5, 10 and 15 ton ha-1) combined with 4 varieties of F1 sweet corn (Bonanza, Talenta , Secada and Sweet Boy). The data were analyzed using analysis of variance and Duncan multiple-range test at 5%. The results show that bokashi dosage had given difference on plant height, number of leaves per plant, diameter of the stem, weight of ears, number of grain rows, and yield. Dosages of 10 tons ha-1 bokashi gave the best growth and sweet corn yield of Sweet Boy F1 varieties on Integrated Crop Management System. Keywords: Sweet Corn, Bokashi, CMS. Sari. Produksi jagung manis di Indonesia dapat ditingkatkan dengan program intensifikasi, diantaranya dengan penggunaan kultivar unggul, pupuk berimbang, dan pupuk organik. Tujuan penelitian ini adalah untuk mempelajari sistem pengelolaan tanaman terpadu, yang berhubungan dengan penggunaan pupuk orga-nik bokashi yang cocok pada tanaman jagung manis, khususnya di dataran rendah Karawang. Metode penelitian ini menggunakan percobaan. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok, terdiri dari 16 perlakuan dan 3 ulangan. Perlakuan terdiri dari 4 dosis bokashi (0, 5, 10 dan 15 ton ha-1)  yang dikombinasikan dengan 4 varietas jagung manis F1(Bonanza, Talenta , Secada dan Sweet Boy). Data dianalisis menggunakan analisis varians dan uji jarak berganda Duncan pada taraf 5%. Hasil menunjukkan perlakuan dosis bokashi memberikan perbedaan pada tinggi tanaman, jumlah daun, diameter batang, berat tongkol, jumlah baris biji, dan hasil. Dosis bokashi 10 ton ha-1 memberikan pertumbuhan dan hasil terbaik jagung manis varietas Sweet Boy pada sistem Pengelolaan Tanaman Terpadu. Kata kunci: Jagung Manis, Bokashi, Pengelolaan Tanaman Terpadu

scholarly journals Crop Management System Based on Digital Technologies

2021 ◽  
Vol 37 ◽  
pp. 00188
Author(s):  
A.R. Zakirova ◽  
G.S. Klychova ◽  
A.R. Yusupova ◽  
I.G. Nikitenko ◽  
A.M. Zakirov
Keyword(s):  
Management System ◽  
Production Systems ◽  
Plant Protection ◽  
Crop Management ◽  
Plant Protection Products ◽  
Crop Productivity ◽  
Unmanned Vehicles ◽  
Human Potential ◽  
Material Resources ◽  
Crop Farming

Crop farming is one of the most important branches of agriculture that ensures the food security of the country. For crop farming development, it is necessary to solve the problems of reducing the quantity and quality of the resulting crop due to insufficient nutrition and care, untimely harvesting and improper storage. To increase the efficiency and sustainability of the industry, it is necessary to digitalize both the production systems and decision-making processes at all levels of management. The study considers the stages of a digital crop management system: accounting for acreage with an electronic field map; organization of crop rotation taking into account organizational, soil-climatic and economic aspects of production; monitoring of technological operations; control of agricultural machinery with the formation of primary documents for accounting for completed works; maintaining a subsystem of material resources using the technic of precision farming; filling in technological maps and accounting for actually completed works with a list of works, the composition of agricultural aggregates, the timing of operations, production rates and fuel consumption, the need for seeds, fertilizers, plant protection products, and the cost of resources. The increased attention to the problem of digital agriculture on the part of the state and the highly competitive environment promote the use of new technological mechanisms and methods of work by agricultural producers, which are based on the use of Internet technologies, satellite navigation, robotics, sensors and sensors, and unmanned vehicles. Digitalization of agricultural processes allows increasing crop productivity, the efficiency of using material resources, equipment and human potential.

scholarly journals INTELLIGENT ENERGY MANAGEMENT SYSTEM FOR RESIDENTIAL BUILDINGS BASED ON ZIGBEE TECHNOLOGY

2013 ◽  
pp. 181-186
Author(s):  
SANGEETA MODI ◽  
RITU NAIYA ◽  
SHAIK SHABANA
Keyword(s):  
Energy Management ◽  
Management System ◽  
Energy Use ◽  
Energy Savings ◽  
Residential Buildings ◽  
Sensor Technology ◽  
Energy Management System ◽  
Present Scheme ◽  
Electricity Cost ◽  
Zigbee Technology

Energy consumption in residential buildings account for 20 to 40 per cent of total energy consumed in a country and therefore represents a significant and potential source of energy savings. An Intelligent Energy Management System can contribute to major reductions of energy use in hundreds of millions of buildings. This paper gives an overview of sensor technology and wireless networks in the development of an intelligent energy management system for residential buildings (IEMSRB). This technology has ample potential to change the way we live and work. In this paper ZigBee is used as a communication medium in building intelligent energy management system. From the prototype setup, it is shown that ZigBee is a suitable technology to be adopted as the communication infrastructure in energy management system for residential buildings .The performance analysis discussed in this paper verifies the effectiveness of using ZigBee in energy management system. The novelty of the present scheme is its ability to save the energy and improve the performance as it learns and gains more experience in real-time operations. Results also demonstrate that the proposed scheme can achieve the minimum electricity cost for residential customers. The proposed system can be installed and maintained in residential environments with ease.

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