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Friday, December 14, 2018

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826. Bezdicek, D. and R. Lockerman. no date. Crop rotation and the response of cereal crops to nitrogen in the PNW. unpublished.
Experiments conducted at Pullman, WA and Bozeman, MT. Year 1 - legumes (rainfall -Pullman 500 mm, Bozeman 480 mm). Year 2 -Pullman winter wheat + N (rainfall 350 mm); Bozeman barley + N (rainfall 200 mm). Compared fababean, pea, lentil, chickpea, fallow at both locations. Pullman legumes were used as green manure, Bozeman legumes were harvested for seed. N fertilizer equivalents ranged from 30-86 kg/ha N at Pullman (fallow = 125) and from 27-81 kg/ha N at Bozeman (fallow = 53). All cereals responded to added N, although less so at Pullman. More N was removed in seed than was fixed. Seed legumes appeared to fix 50-100 kg/ha N. The rotation effect was more significant at Pullman. T: cereal yields; fertilizer N equivalent; moisture depletion.

5413. Kisha, T.J.. 1983. Effect of soil salinity and fertilizer nitrogen on growth and N2-fixation in broad bean (Vicia faba L.) and dry bean (Phaseolus vulgaris L.).. M.S. Thesis, Dept. of Plant and Soil Sci., Montana State Univ., Bozeman, MT 59717.

6620. Speilman, R.S.. 1984. Nitrogen economy and agronomic evaluation of annual legume-cereal grain rotations.. M.S. Thesis, Plant and Soil Science, Montana State Univ., Bozeman, MT.
Legume biomass and seed yield were best for fababean, fieldpea, and chickpea. Potential for use of legumes for hay or silage. Barley yield after legumes was comparable to barley after fallow, and better than barley after barley or wheat. N contributions to the cropping system, except for field bean, were greater for legumes than for fallow. High N fertility levels from legume N plus fertilizer N resulted in premature soil moisture depletion. Optimum rotation performance will depend on balancing nitrogen fertility with expected available moisture.

7972. Sims, J.R., M.K. Muir, and A.E. Carleton. 1968. Evidence of ineffective Rhizobia and its relation to the nitrogen nutrition of sainfoin (Onobrychia viciaefolia).. IN: C.S. Cooper and A.E. Carleton (eds.). Sainfoin Symposium. MT Agr. Expt. Sta. Bull. 627.

7786. Engel, R., L.E. Welty, R. Lockerman, J. Bergman, G. Kushnak, L. Prestbye, and J. Sims. 1987. Annual legumes and cereal grain rotations in Montana.. Montana AgResearch 4(3):1-4.
Montana researchers examined the performance of several grain legumes (dry pea, chickpea, lentil) and their effect on a subsequent barley crop. Dry pea production was the highest. A subsequent barley crop rsponded to added N fertilizer at three out of six sites. Barley yields following legumes were generally equal to or greater than yields following fallow. The annual legumes contributed to soil N and reduced the fertilizer N needed to reach maximum yield by 40-55 lb N/ac when compared to recrop barley. This translated into savings of $10-14/ac for fertilizer N.

7833. Koala, S.. 1985. Effects of N and P fertilizers on the growth, nodulation, and N2 ixation of fababean, green pea, and dry bean.. PhD. Thesis, Dept. of Plant and Soil Sci., Montana St. Univ., Bozeman, MT 59717.

7850. Koala, S.. 1982. Adaptation of Australian ley farming to Montana dryland cereal production.. M.S. Thesis, Dept. of Plant and Soil Sci., Montana St. Univ., Bozeman, MT 59717.
This study examined the potential to adapt the ley farming system used in Australia to dryland cereal production in Montana. The ley system alternates a grain crop with a self-seeding forage legume. The legumes tested in this study included 5 Australian medics, 7 subclovers, 2 lupins, fababean, and a native Montana black medic. One full cycle of the system was completed. All grain yields (spring wheat) were higher after the legumes than after fallow. Soil water to 120 cm was similar in all plots at wheat planting. The black medic treatment had the highest water use efficiency (100 kg grain/cm) and fallow the lowest (55 kg grain/cm). There were higher levels of soil nitrate after the legumes than after fallow. Re-establishment of the legumes after wheat ranged from 3 to 93% ground cover, with black medic being the highest. Overall, black medic from Montana performed best in this study.

7871. Lockerman, R.H., T.J. Kisha, J.R. Sims, and A.S. Abdel-Ghaffer. 1983. The effect of soil salinity on dinitrogen fixation and yield of fababean.. FABIS 7:24-25.

7885. McGuire, C., R. Lockerman, R. Speilman, L. Welty, L. Prestbye, R. Engel, J. Sims, and J. Bunker. 1989. Nitrogen contribution of annual legumes to the grain protein content of Clark barley production.. Applied Agric. Res. 4:118-121.

8064. Welty, L.E., L.S. Prestbye, R.E. Engel, R.H. Lockerman, R.S. Speilman, J.R. Sims, R.A. Larson. 1988. Nitrogen contribution of annual legumes to subsequent barley production.. Applied Agric. Res. 3:98-104.

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