Abstract
Field studies were conducted to develop water and N response surface models for broccoli and cauliflower (Brassica oleracea L., Botrytis Group) produced in the low desert of the southwestern United States and to estimate profit maximizing combinations of water and N over a range of realistic price situations. Marketable broccoli and cauliflower yields were increased by water and N inputs in all experiments. Generalized response equations indicate maximum broccoli yields with 43 cm of water and N at 267 kg·ha-1 and maximum cauliflower yields with 65 cm of water and N at 338 kg·ha-1. Least-cost combinations of water and N changed with the costs of these inputs for yield levels below the economic maximum. However, profit maximizing N and water rates changed little regardless of input or crop prices investigated.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 201-205 |
| Number of pages | 5 |
| Journal | HortScience |
| Volume | 31 |
| Issue number | 2 |
| State | Published - Apr 1996 |
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Keywords
- Brassica oleracea
- Economic maximum yield
- Irrigation
- Response surface
ASJC Scopus subject areas
- Horticulture
- Plant Science
Cite this
Economic responses of broccoli and cauliflower to water and nitrogen in the desert. / Sanchez, Charles A; Roth, Robert L; Gardner, B. R.; Ayer, Harry.
In: HortScience, Vol. 31, No. 2, 04.1996, p. 201-205.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Economic responses of broccoli and cauliflower to water and nitrogen in the desert
AU - Sanchez, Charles A
AU - Roth, Robert L
AU - Gardner, B. R.
AU - Ayer, Harry
PY - 1996/4
Y1 - 1996/4
N2 - Field studies were conducted to develop water and N response surface models for broccoli and cauliflower (Brassica oleracea L., Botrytis Group) produced in the low desert of the southwestern United States and to estimate profit maximizing combinations of water and N over a range of realistic price situations. Marketable broccoli and cauliflower yields were increased by water and N inputs in all experiments. Generalized response equations indicate maximum broccoli yields with 43 cm of water and N at 267 kg·ha-1 and maximum cauliflower yields with 65 cm of water and N at 338 kg·ha-1. Least-cost combinations of water and N changed with the costs of these inputs for yield levels below the economic maximum. However, profit maximizing N and water rates changed little regardless of input or crop prices investigated.
AB - Field studies were conducted to develop water and N response surface models for broccoli and cauliflower (Brassica oleracea L., Botrytis Group) produced in the low desert of the southwestern United States and to estimate profit maximizing combinations of water and N over a range of realistic price situations. Marketable broccoli and cauliflower yields were increased by water and N inputs in all experiments. Generalized response equations indicate maximum broccoli yields with 43 cm of water and N at 267 kg·ha-1 and maximum cauliflower yields with 65 cm of water and N at 338 kg·ha-1. Least-cost combinations of water and N changed with the costs of these inputs for yield levels below the economic maximum. However, profit maximizing N and water rates changed little regardless of input or crop prices investigated.
KW - Brassica oleracea
KW - Economic maximum yield
KW - Irrigation
KW - Response surface
UR - http://www.scopus.com/inward/record.url?scp=0000098920&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000098920&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0000098920
VL - 31
SP - 201
EP - 205
JO - Hortscience: A Publication of the American Society for Hortcultural Science
JF - Hortscience: A Publication of the American Society for Hortcultural Science
SN - 0018-5345
IS - 2
ER -