Journal: Agronomy journal / Publication Year: 1993 / Source: 1993 v.85 no.3 / Subject: dry matter accumulation and dry environmental conditions

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Author:: Chapman, Scott C.; Hammer, Graeme L.; Meinke, Holger
Source:: Agronomy journal 1993 v.85 no.3 pp. 725-735
ISSN:: 0002-1962
Subject:: simulation models; Helianthus annuus; plant development; dry environmental conditions; phenology; dry matter accumulation; growth models; crop yield; decision making; prediction
Abstract:: ... In dryland farming systems, opportunities to improve sunflower (Helianthus annuus L.) yields are mostly associated with management decisions made at planting. Dynamic crop simulation models can assist in making such decisions. This study reports the structure of QSUN, a simple and mechanistic crop model for sunflower, and how it accounts for the dynamic interaction of the crop with the soil and ae ...
DOI:: 10.2134/agronj1993.00021962008500030038x
: https://dx.doi.org/10.2134/agronj1993.00021962008500030038x

Author:: Kimball, B. A.; Mauney, J. R.
Source:: Agronomy journal 1993 v.85 no.3 pp. 706
ISSN:: 0002-1962
Subject:: Gossypium hirsutum; dry environmental conditions; nitrogen fertilizers; crop yield; harvest index; lint cotton; seeds; dry matter accumulation; water stress; irrigated conditions; source-sink relationships; photosynthesis; carbon dioxide; root shoot ratio; Arizona
Abstract:: ... The CO concentration of the atmosphere is increasing and is expected to double sometime near the middle of the next century. To determine the effects of such a CO increase on cotton (L.) growth and productivity, a series of experiments from 1983 through 1987 were conducted with open-top CO-enriched field chambers at ample as well as limiting levels of water and N at Phoenix, AZ. Comparisons with o ...
Handle:: 10113/50192
DOI:: 10.2134/agronj1993.00021962008500030035x
: https://dx.doi.org/10.2134/agronj1993.00021962008500030035x