Oakes Irrigation Research Site
Carrington Research Extension Center * North Dakota State University
P.O. Box 531, Oakes, ND 58474-0531, Voice: (701) 742-2189, FAX: (701) 742-2700, email: rgreenla@ndsuext.nodak.edu

CARROT HYBRID PERFORMANCE TRIAL

Richard Greenland, Leonard Besemann and Heidi KerlinIn North Dakota, carrots grow very well. Carrots have greater commercial production potential than any other vegetable. We tested baby carrots (both true and cut and peel); cello types, jumbos, and processing types.

MATERIALS AND METHODS

Soil: Maddock sandy loam and Egeland loam; pH=7.6; 2.5% organic matter; soil-P was low; soil-K very high; soil-S very low.

Previous crop: 1996 - sweet corn; 1995 - cabbage, broccoli, peas, garlic; 1994 - onions, grass.

Seedbed Preparation: Chisel plow May 7. Disked May 15. Formed beds on May 19. Beds were 36 inches wide on 55 inch centers.

Planting: Direct seeded pelleted and raw carrot seeds on June 4 and 5 for cello, cut & peel, and processing type carrots with a Stanhay vegetable planter. Planting pattern was paired rows (3 inches between rows in the pair) on 14-inch centers. Planting rate was about 500,000 seeds/acre for cello, 600,000 seeds/acre for cut & peel, and 400,000 seeds/acre for the processing carrots. Two complete cello and two complete cut & peel trials were planted: one each to be harvested early and one each to be harvested mid-season. One processing type carrot trial was planted and was to be harvested just before freeze up. Planted raw seed for true baby carrots on June 5. Planting pattern for true baby carrots was paired rows (3 inches between rows in the pair) on 8 inch centers seeded at about 2.2 million seeds/acre. Two complete true baby carrot trials were planted, one to be harvested early and one late.

Plots: Plots were 17 ft long by one paired row wide (there were two paired rows per bed) except for the true baby carrots which were 8 ft long by 3 ft wide. There were 4 reps.

Fertilizer: On April 23, broadcast 14 lbs N/acre and 70 lbs P₂O₅/acre as 10-50-0, 16 lbs N/acre and 19 lbs S/acre as 21-0-0-24, and 94 lbs K₂0/acre as 0-0-60. Sprayed 50 lbs N/acre as 28-0-0 on May 5 on baby carrots. Fertigated 52 lbs N/acre as 28-0-0 on July 14 on all carrots.

Irrigation: Overhead sprinkler irrigation as needed.

Pest control: Sprayed Roundup + COC (12 oz/acre + 2 qt/100 gal on June 10 before planting processing and baby carrots). We also controlled weeds with Lorox (1 lb/acre on June 10 on all carrots; 2 lbs/acre on July 22 on processing carrots; and 3 lbs/acre on July 22 on baby carrots), Fusilade + nonionic surfactant (12 oz/acre + 8 oz/25 gal on cut & peel, cello, and processing carrots on July 14), Fusilade + COC (12 oz/acre + 1.5 pts/25 gal on July 22 on processing carrots), and by hand weeding. We sprayed Asana (8 oz/acre on Aug 20) to control leafhopper.

Harvest: The early harvest for cello carrots was Aug 15 & 20. The midseason harvest was Sep 8 & 9. The cut & peel baby carrot harvests were on Aug 21 and Sept 5. The true baby carrot harvests were on Aug 22 and Sep 9. The processing carrot harvest was on Oct 21. Yields, etc. were taken from a five-foot section of one row harvested from each plot, except the baby carrots where two rows per plot were harvested.

RESULTS

Because of the late spring and trouble with seed calibration, the carrots were planted too late in the season. Germination and emergence were poor on all varieties and in all studies. Therefore, no data are presented for the carrot trials this year.

Go to Oakes Irrigation Research Site Variety Performance Trials

Go to Oakes Irrigation Research Site 1997 annual report

Go to Oakes Irrigation Research Site crop index

Go to Oakes Irrigation Research Site home page

Soil:	Maddock sandy loam and Egeland loam; pH=7.6; 2.5% organic matter; soil-P was low; soil-K very high; soil-S very low.
Previous crop:	1996 - sweet corn; 1995 - cabbage, broccoli, peas, garlic; 1994 - onions, grass.
Seedbed Preparation:	Chisel plow May 7. Disked May 15. Formed beds on May 19. Beds were 36 inches wide on 55 inch centers.
Planting:	Direct seeded pelleted and raw carrot seeds on June 4 and 5 for cello, cut & peel, and processing type carrots with a Stanhay vegetable planter. Planting pattern was paired rows (3 inches between rows in the pair) on 14-inch centers. Planting rate was about 500,000 seeds/acre for cello, 600,000 seeds/acre for cut & peel, and 400,000 seeds/acre for the processing carrots. Two complete cello and two complete cut & peel trials were planted: one each to be harvested early and one each to be harvested mid-season. One processing type carrot trial was planted and was to be harvested just before freeze up. Planted raw seed for true baby carrots on June 5. Planting pattern for true baby carrots was paired rows (3 inches between rows in the pair) on 8 inch centers seeded at about 2.2 million seeds/acre. Two complete true baby carrot trials were planted, one to be harvested early and one late.
Plots:	Plots were 17 ft long by one paired row wide (there were two paired rows per bed) except for the true baby carrots which were 8 ft long by 3 ft wide. There were 4 reps.
Fertilizer:	On April 23, broadcast 14 lbs N/acre and 70 lbs P₂O₅/acre as 10-50-0, 16 lbs N/acre and 19 lbs S/acre as 21-0-0-24, and 94 lbs K₂0/acre as 0-0-60. Sprayed 50 lbs N/acre as 28-0-0 on May 5 on baby carrots. Fertigated 52 lbs N/acre as 28-0-0 on July 14 on all carrots.
Irrigation:	Overhead sprinkler irrigation as needed.
Pest control:	Sprayed Roundup + COC (12 oz/acre + 2 qt/100 gal on June 10 before planting processing and baby carrots). We also controlled weeds with Lorox (1 lb/acre on June 10 on all carrots; 2 lbs/acre on July 22 on processing carrots; and 3 lbs/acre on July 22 on baby carrots), Fusilade + nonionic surfactant (12 oz/acre + 8 oz/25 gal on cut & peel, cello, and processing carrots on July 14), Fusilade + COC (12 oz/acre + 1.5 pts/25 gal on July 22 on processing carrots), and by hand weeding. We sprayed Asana (8 oz/acre on Aug 20) to control leafhopper.
Harvest:	The early harvest for cello carrots was Aug 15 & 20. The midseason harvest was Sep 8 & 9. The cut & peel baby carrot harvests were on Aug 21 and Sept 5. The true baby carrot harvests were on Aug 22 and Sep 9. The processing carrot harvest was on Oct 21. Yields, etc. were taken from a five-foot section of one row harvested from each plot, except the baby carrots where two rows per plot were harvested.