ISHS Acta Horticulturae 260: International Symposium on Growth and Yield Control in Vegetable Production
PROGRAMMING OF VEGETABLE CROP YIELDS CONSIDERING ECOLOGICAL FACTORS |
| Authors: | Vasili F. Botnar, V. P. Chichkin |
| Abstract:
It was established that in the Moldavian Republic the vegetable crops utilize up to 0.9 to 1.88% of the incident physiologically active radiation under optimum soil-moisture regimes and mineral nutrition. The major limiting factor of the crop's productivity is precipitation. The evaluation of the soil-climatic resources of the territory alone does not ensure that the programmed yields are reached. It only defines the yield's possible limits. A dynamic model of vegetable crop productivity explained in this paper for garden peas, adequately describes the processes of growth and development of plants under different weather-climatic conditions. The accuracy of calculation using the model of soil-water resources for cultivating garden peas is 3–10%, for the leaf area 7–9%, for the total phytomass 5–8%, and for productivity 2–7%. | |
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