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Filtering by: Creator Cho, Y. K. Conference Name Western Nutrient Management Conference

Refining nitrogen management for organic broccoli production

Creator:

Sullivan, Dan M., Peachey, Ed, and Donaldson, Andrew

Abstract:

Specialty organic fertilizers used in organic vegetable production are expensive. So, from environmental and economic perspectives, growers want to maximize nitrogen (N) fertilizer use efficiency by the crop. This research was conducted to (1) determine sufficient N fertilizer rates for organic broccoli, (2) evaluate the efficacy of a specialty organic...

Resource Type:

Presentation

Full Text:

tra te -N (k g ha -1 ) 0 50 100 150 200 250 300 0-30 cm 0-60 cm 0-60 cm: Y = 54.8
Field microplot estimates of soil N mineralization for manured and non-manured soils

Creator:

Sullivan, Dan M., Cogger, Craig G., Bary, Andrew I., and Myhre, Elizabeth

Abstract:

Credits for available N from past manure applications are often used in nutrient management planning. However, it is difficult to verify the accuracy of these credits. The major objective of this study was to estimate long-term effects of manure application on soil N mineralization. Specific objectives were to: 1) estimate...

Resource Type:

Conference Proceeding and Presentation

Full Text:

mineralized (y) vs. degree days (x), with the y-intercept set equal to zero: Nminconstant = c (dd) where