Loading...
Please wait, while we are loading the content...
Similar Documents
Alfalfa - Small Grain Rotational Benefits: It's worth More than You Think
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lin, Eric Putnam, Daniel H. Pettygrove, Stu Lundy, Mark E. Orloff, Steve B. Wright, Steve |
| Copyright Year | 2014 |
| Abstract | Alfalfa in California helps fix significant amounts of atmospheric N2 annually. Fixed N often becomes available to subsequent crops and can be included when determining N fertilizer needs. However, there is limited information on alfalfa’s N contribution in semiarid irrigated cropping systems. We conducted field trials at three sites on soils ranging from clay loams to a sandy loam to help develop recommendations in California. We compared wheat’s responses to N fertilization when grown after two cropping systems: continuous alfalfa (Alfalfa-Grain) and a sudangrass-wheat rotation (Grain-Grain). Forage yields, grain yields, grain protein content, and N uptake were higher in wheat following the Alfalfa-Grain treatment than in wheat following the Grain-Grain treatment. At Davis, Tulelake, and Kearney, wheat following the Grain-Grain treatment required 114 lb N ac -1 , 119 lb N ac -1 , and 82 lb N ac -1 , respectively, to achieve the same amount of N uptake as unfertilized wheat following the Alfalfa-Grain treatment. Depending on location, alfalfa’s N contribution was likely in a range between 80 lb N ac -1 and 120 lb N ac -1 . |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://alfalfa.ucdavis.edu/+symposium/2014/files/ppt/14CAS12_Lin_AlfalfaRotation.pdf |
| Alternate Webpage(s) | https://alfalfa.ucdavis.edu/+symposium/2014/files/ppt/14CAS12_Lin_AlfalfaRotation.pdf |
| Alternate Webpage(s) | https://alfalfa.ucdavis.edu/+symposium/proceedings/2014/14CAS12_Linn_GrainRotation.pdf |
| Alternate Webpage(s) | http://alfalfa.ucdavis.edu/+symposium/proceedings/2014/14CAS12_Linn_GrainRotation.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
