Results 251 to 260 of about 239,815 (310)

Crop water requirements of cotton

The Journal of Agricultural Science, 1958
1. Attention is drawn to the enormous variations in yield experienced in commercial cotton growing under rain-fed conditions. Yields at Namulonge have ranged from 161 to 1163 lb./acre.2. In seeking an explanation of this enormous variation past and present fertilizer trials in Uganda have failed to show that much of this variation is due to nutrient ...
Joseph Hutchinson, H. L. Manning, H. G. Farbrother   +2 more
openaire   +1 more source

Water Requirements for Major Crops

2015
The objective of this chapter was to calculate water requirements for four crops: wheat, maize, rice and sugarcane grown in 17 governorates in Egypt under current climate and under the A1B climate change scenario in 2040. The BISm model was used to calculate crop coefficient water depletion from root zone.
Samiha Ouda, Khaled Abd El-Latif, Fouad Khalil   +2 more
openaire   +1 more source

Crop water requirements model tested for crops grown in Greece

Agricultural Water Management, 2000
Abstract A model for estimating crop water requirements throughout crop development is presented. The model assumes horizontal uniformity and treats the two-component system of canopy and soil along the lines of Shuttleworth and Wallace (1985) . Incorporated in the model is a 3-layer soil water budget allowing evaluation of the soil surface and ...
M Anadranistakis, A Liakatas, P Kerkides, S Rizos, J Gavanosis, A Poulovassilis   +5 more
openaire   +1 more source

Water Requirements for Prevailing Cropping Pattern

2017
The objective of this chapter was to calculate water requirements for the prevailing cropping pattern in the five agroclimatic zones of Egypt. Weather data were collected for 2014/15 growing seasons to calculate water requirements for the studied cropping pattern for the five agroclimatic zones. BISm model was used to calculate ETo.
Samiha A. H. Ouda, Abd El-Hafeez Zohry
openaire   +1 more source

Climatic Influences on Crop Water Requirements

Journal of the Irrigation and Drainage Division, 1957
Until recent years scientists knew very little about crop water requirements, rates at which different plants used water and particularly how climate influenced the water use rates of plants. In the past decade, however, water requirements of plants as influenced by climate have received considerable study and experimentation.
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Irrigation water requirement models of some major crops

Water Resources Management, 1992
A case study of the Mahanadi-Kathjori-Devi delta of Orissa, India was undertaken for the formulation of irrigation water requirement models of some major crops. Principal crops such as paddy (both during the Kharif and Rabi Seasons), sugarcane, jute, chilly, mustard, groundnuts, etc., which are mostly grown in the delta, were taken into account for the
B. Panigrahi, S. D. Sharma, B. P. Behera
openaire   +1 more source

Crop Water Requirement and Water Use Efficiency

2010
Irrigation water is a scarce factor in many regions. Therefore, crop water requirement has to be calculated, and irrigation systems have to be designed carefully.Knowledge of the evapotranspiration inside the greenhouse is important for successful plant growth, calculation of irrigation water consumption, and possible and economical rainwater ...
openaire   +1 more source

Crop Water Requirements of Mature Blueberries in Florida

World Environmental and Water Resources Congress 2007, 2007
Climate-specific measures of crop water use of mature blueberry plantings could offer growers improved irrigation management. In contribution to improved irrigation management practices for Florida blueberry growers, this paper presents a crop coefficient for mature Southern highbush blueberry plants. Measures of crop water requirements were made using
Daniel R. Dourte, Dorota Z. Haman
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Future Water Requirements for Prevailing Cropping Pattern

2017
The objective of this chapter was to calculate the values of water consumptive use for the studied crops in the prevailing cropping pattern in 2030 under the effect of climate change in the five agro-climatic zones in Egypt. The projected values of soil temperature on the level of each agro-climatic zone in 2030 revealed that there will be an ...
Samiha A. H. Ouda, Mostafa Morsy
openaire   +1 more source

Crop Water Requirement and Irrigation Scheduling

2010
With increasing scarcity and growing competition for water, judicious use of water in agricultural sector will be necessary. This means that exact or correct amount and correct timing of application should be adopted. In addition, it will need more widespread adoption of deficit irrigation, especially in arid and semi-arid regions.
openaire   +1 more source