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Crop Sequencing to Improve Use of Precipitation and Synergize Crop Growth

D. L. Tanakaa,*, R. L. Andersonb and S. C. Raoc

a USDA-ARS, Northern Great Plains Res. Lab., P.O. Box 459, Mandan, ND 58554
b USDA-ARS, Northern Grain Insects Lab., 2923 Medary Ave., Brookings, SD 57006
c USDA-ARS, Grassl. Res. Lab., 7207 West Cheyenne Street, El Reno, OK 73036



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Fig. 1. Long-term monthly precipitation for Mandan, ND; Akron, CO; and El Reno, OK.

 


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Fig. 2. Long-term average monthly temperature for Mandan, ND; Akron, CO; and El Reno, OK.

 


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Fig. 3. Soil water content at the 15- to 30-cm depth for clipped and unclipped pigeonpea forage treatments when compared with a noncrop treatment at El Reno, OK, in 1998.

 


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Fig. 4. Great Plains cropping systems evolution as influenced by management and crop intensity.

 





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