نتایج جستجو برای: field crop

تعداد نتایج: 842423  

2004
M. Turker M. Arikan

This study presents a field-based crop mapping through sequential masking classification of multi-temporal Landsat-7 ETM+ images acquired in May, July, and August 2000 in Karacabey, Turkey. First, the classification of each image date was carried out on a standard per pixel basis. The results of the per pixel classification were integrated with digital agricultural field boundaries and for each...

Journal: :Journal of the Institute of Brewing 2004

Journal: :Journal of the Institute of Brewing 2007

Journal: :journal of agricultural science and technology 2012
s. f. mousavi m. moazzeni b. mostafazadeh-fard m. r. yazdani

the prevalent method of irrigation in paddy fields in iran is continuous ponding, which changes to intermittent method at the time of water shortage. soil cracks are the main problem in intermittent irrigation. in this study, effects of adding rice straw on some soil physical characteristics and cracks were studied in paddy soils of the guilan province of iran. the experiment was performed as s...

Journal: :Ecological applications : a publication of the Ecological Society of America 2012
Lucía González-Díaz Femke van den Berg Frank van den Bosch José Luis González-Andújar

Weed control through crop rotation has mainly been studied in a nonspatial context. However, weed seeds are often spread beyond the crop field by a variety of vectors. For weed control to be successful, weed management should thus be evaluated at the landscape level. In this paper we assess how seed dispersal affects the interactions between crop rotation and landscape heterogeneity schemes wit...

2008
Jianbing Zhang Yeping Zhu

Crop model simulates growth and yield of crop in field scale and can be used to provide useful field information for farmers, such as irrigation application dates and amount, fertilizer application dates and amount, the choose of crop variety. Researchers have used crop models for many years, but they have had limited success in packaging these complex models in a framework that make them easy ...

A. iotrowska-Długosz E. Wilczewski, G. Lemańczyk

Biomass of legumes grown as catch crops improves soil properties and thus soil conditions for following crops. The aim of this study was to evaluate the effect of field pea (Pisum sativum L.) grown as a catch crop and used for green manure on soil properties and yielding of spring barley (Hordeum vulgare L.). Field experiments were conducted in 2008-2011 in the randomized block design with ...

2016
José M. Bengochea-Guevara Jesus Conesa Dionisio Andujar Angela Ribeiro

The concept of precision agriculture, which proposes farming management adapted to crop variability, has emerged in recent years. To effectively implement precision agriculture, data must be gathered from the field in an automated manner at minimal cost. In this study, a small autonomous field inspection vehicle was developed to minimise the impact of the scouting on the crop and soil compactio...

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