Oakes Irrigation Research Site

Carrington Research Extension Center * North Dakota State University

P.O. Box 531, Oakes, ND 58474-0531, Phone: (701) 742-2744, FAX: (701) 742-2700, E-mail:

Kelly.c.Cooper@ndsu.edu

Strip-Till, Soybean on Corn Study

K. Cooper, L. Besemann and H. Eslinger

MATERIALS AND METHODS

Soil:

Embden sandy loam, Hecla sandy loam and Maddock sandy loam; pH = 7.3; 2.1% organic matter; soil N 7 lb/acre; soil P was very high; soil K was high; soil S was medium.

Previous crop:

2015 - field corn.

Seedbed preparation:

Strip-till May 5 with an Orthman strip-till machine.

Hybrid:

Northrup King S10P9.

Planting:

May 22 @ 174,000 plants per acre in 30-inch rows.

Plots:

Plots were 37 ft long by 15 ft (6 rows) wide. There were four replications.

Fertilizer:

All plots received 12 lbs N/acre and 40 lbs P₂O₅/acre as 10-34-0 via strip-till May 9.

Irrigation:

Overhead sprinkler irrigation as needed.

Pest control:

Roundup (40 oz/acre) + Authority Elite (25oz/acre) + AMS (1 lb/10 gal) + NIS (1.6 oz/10 gal) May 10. Endura (5.5 oz/acre) on July 15 for control disease.

Harvest:

Harvested September 29 with an Almaco plot combine. Harvest area was: four two row passes the entire length, 74 feet, of the study.

RESULTS

The soybean yield was 55.2 bu/acre at 13.0% moisture with a test weight of 56.6 lbs/bu.

Oakes Irrigation Research Site