Search Results

You are looking at 1 - 10 of 5,781 items for :

Clear All

temperature difference, and daylength were selected as major parameters to construct models for predicting yield potential in this study. Previous studies indicate modeling approaches that are based on physiological responses of plants to their environment

Free access

the development of quantitative irrigation guidelines and/or weather-based irrigation models could assist nursery and floriculture growers in reducing their water use while still meeting the needs of their crops. This is especially true because growers

Free access

seasons to reach marketable size. Each species required a unique equation. In 2004, a new model to calculate a crop coefficient, termed water needs index (WNI), was proposed ( Beeson, 2004 ). The term was invented because nursery production and landscapes

Free access

conserve water. Attempts to develop such an irrigation model for container-grown woody shrubs have been limited. Knox (1989) reported relatively high correlations between pan evaporation, a growth index, and ET A for five woody ornamentals during a

Free access

Abstract

A model that computes orchard foliage temperature distributions in a heated orchard is described. The energy balance for individual foliage elements is computed, considering thermal radiation from the environment, plus the radiative and convective effects of an array of orchard heaters. The model is used to analyze various heater configurations and densities, and to determine rates of fuel consumption required for frost protection. The results indicate that radiative heating of the foliage by the heaters is as important as convective heating of the air, even though only one-fifth of the fuel contributes to radiation emission. Further, results suggest several simple passive methods for increasing the efficiency of orchard heating.

Open Access

184 WORKSHOP 19 (Abstr. 431–434) Computer Modeling of Crop Growth and Development

Free access

184 WORKSHOP 19 (Abstr. 431–434) Computer Modeling of Crop Growth and Development

Free access

187 WORKSHOP 22 (Abstr. 440–442) Modeling Photosynthesis and Carbon Partitioning

Free access

133 ORAL SESSION 36 (Abstr. 290–295) Cross-commodity: Modeling

Free access

184 WORKSHOP 19 (Abstr. 431–434) Computer Modeling of Crop Growth and Development

Free access