نتایج جستجو برای: crop moisture

تعداد نتایج: 105420  

2014
Quan Quan Bing Shen Runxun Jin Changxing Jin

The sustainable development of efficient water-saving agricultural irrigation in Loess Plateau requires reasonable and quantitative planning, design, management, and strategies based on crop-water-salt response relationship. In the present paper, data were measured by using the soil-water-salt sensor CS655 to modify the simulation of root uptake in the original Soil Water Atmosphere Plant (SWAP...

Journal: :JNW 2013
Liai Gao Meng Zhang Geng Chen

In order to resolve the problems which include loss of soil fertility and waste of water resource in agriculture production, we design an intelligent irrigation system based on wireless sensor networks and fuzzy control. The system mainly consists of wireless sensor networks and the monitoring center. All of the nodes in Monitoring area use solar power, collect the information of soil moisture,...

2014
Amthal K. Mousa Muayad S. Croock Mohammed N. Abdullah Muhammad Umair R. Usman Xiaohong Peng Guodong Liu Peng Xiaohong Mo Zhi Xiao Laisheng Guohuan Lou XiuLi Zeng Ketema Tilahun Zeleke

In this paper, an efficient irrigation system is proposed based on computing evapotranspiration (ET) and the required irrigation quantity using fuzzy inference methodology. The aim of this system is to schedule irrigation according to the particular requirements of a crop and to the change in various climatological parameters and other factors. This is to avoid overor under-watering which signi...

2011
Sonal Shah Raju Saravanan Narendra Atmaram Gajbhiye

Ashwagandha, commonly known as the Indian Ginseng (Withania somnifera) is an ingredient in many herbal preparations used for healing various ailments. It is cultivated in semi-arid regions of India as rain-fed crop. The response of this crop (cv. JA-134) to progressive soil moisture deficit on growth, physiology and content of phytochemicals was studied. At the end of treatment period, soil wat...

2017
Francesco Nutini Daniela Stroppiana Lorenzo Busetto Dario Bellingeri Chiara Corbari Marco Mancini Enrico Zini Pietro Alessandro Brivio Mirco Boschetti

The triangle method has been applied to derive a weekly indicator of evaporative fraction on vegetated areas in a temperate region in Northern Italy. Daily MODIS Aqua Land Surface Temperature (MYD11A1) data has been combined with air temperature maps and 8-day composite MODIS NDVI (MOD13Q1/MYD13Q1) data to estimate the Evaporative Fraction (EF) at 1 km resolution, on a daily basis. Measurements...

2015
Stefania Tron Gernot Bodner Francesco Laio Luca Ridolfi Daniel Leitner

Drought stress is a dominant constraint to crop production. Breeding crops with adapted root systems for effective uptake of water represents a novel strategy to increase crop drought resistance. Due to complex interaction between root traits and high diversity of hydrological conditions, modeling provides important information for trait based selection. In this work we use a root architecture ...

2011
H. Mohammadzadeh M. Khorvash G. R. Ghorbani W. Z. Yang

________________________________________________________________________________ Abstract The objective of this study was to investigate the effects of inoculating Lactisil Maize, a dual-purpose inoculant, on the fermentation characteristics and nutritive value of high-moisture maize silage and the performance of lactating cows receiving the silage in their diets. Whole-crop maize was harvested...

Journal: :Remote Sensing 2017
Johannes E. Hunink Joris P. C. Eekhout Joris de Vente Sergio Contreras Peter Droogers Alain Baille

The parameterization of crop coefficients (kc) is critical for determining a water balance. We used satellite-based and literature-based methods to derive kc values for a distributed hydrologic model. We evaluated the impact of different kc parametrization methods on the water balance and simulated hydrologic response at the basin and sub-basin scale. The hydrological model SPHY was calibrated ...

2002
Gerd H. Schmitz Niels Schütze Uwe Petersohn

The determination of water application parameters for creating an optimal soil moisture profile represents a complex nonlinear optimization problem which renders traditional optimization into a cumbersome procedure. For this reason, an alternative methodology is proposed which combines a numerical subsurface flow model and artificial neural networks ~ANN! for solving the problem in two, fully s...

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