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Hawaii Agriculture Research Center (HARC) |
One of our substations on the island of Oahu is an excellent location for winter nursery growouts and production. HARC supports the breeding programs of seed companies and other agricultural institutions with our research staff trained in horticulture, agronomy, entomology, pathology, genetics, physiology, weed science, and environmental chemistry.
A wide variety of crops have been grown at this substation including corn, potato, watermelon, banana, papaya, rice, wheat, soybean, sorghum, sunflower, lettuce, onion, pepper, broccoli, asparagus, cabbage, eggplant, zucchini, basil, coffee, and sugarcane. Maximum winter temperature averages 79.8° F while the mean minimum temperature is 63.9° F. Winter rainfall averages 2.5 inches per month with solar radiation of 352.8 cal/cm2/day. The soil is a well drained oxisol (Molokai silty clay loam) with pH ranging from 6.0 to 6.8. The station has good quality irrigation water supplying drip irrigation systems in all fields. The advantages of Hawaii's year-around growing conditions make it an important location for seed production companies. The Experiment Station laboratories and administrative offices are located 15 minutes away at the Robert L. Cushing Building in Aiea, Hawaii. These modern laboratories are equipped with state of the art instrumentation and equipment to assist our scientists in meeting our clients' needs.
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Month |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
|
Precipitation (In.) |
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|
Avg. Precipitation |
4.38 |
3.08 |
1.94 |
1.80 |
1.45 |
0.82 |
0.72 |
0.47 |
1.16 |
2.84 |
3.65 |
3.91 |
|
Max. precipitation |
15.4 |
9.92 |
5.84 |
6.19 |
6.39 |
2.32 |
2.07 |
1.65 |
8.29 |
12.4 |
14.6 |
15.4 |
|
Min. precipitation |
0.22 |
0.03 |
0.12 |
0.21 |
0.10 |
0.03 |
0.08 |
0.02 |
0.04 |
0.13 |
0.13 |
0.16 |
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Temperature (Deg. F) |
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|
Avg. Min. Temperature |
61.4 |
60.9 |
62.3 |
63.2 |
64.3 |
66.2 |
67.4 |
67.4 |
68.0 |
67.2 |
65.1 |
62.8 |
|
Avg. Max. Temperature |
78.3 |
78.6 |
79.3 |
79.9 |
81.9 |
83.3 |
84.3 |
85.4 |
84.8 |
83.6 |
81.8 |
79.5 |
|
Avg. Temperature |
69.9 |
69.8 |
70.8 |
71.6 |
73.1 |
74.8 |
75.9 |
76.4 |
76.4 |
75.4 |
73.5 |
71.2 |
|
Solar Radiation |
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|
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|
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Avg. Radiation (cal/cm2/day) measured on first day of month |
345 |
394 |
442 |
478 |
501 |
534 |
537 |
529 |
476 |
413 |
350 |
324 |
|
Day Length (hrs.) |
10.8 |
11.3 |
11.7 |
12.4 |
12.9 |
13.3 |
13.4 |
13.2 |
12.5 |
11.9 |
11.4 |
10.9 |