Search Results - "Lenssen, A.W."

Diversified cropping systems in semiarid Montana: Nitrogen use during drought by Lenssen, A.W., Waddell, J.T., Johnson, G.D., Carlson, G.R.

“…Improved nitrogen use efficiency would be beneficial to agroecosystem sustainability in the northern Great Plains of the USA. The most common rotation in the…”
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The potential role of sheep in dryland grain production systems by Goosey, H.B., Hatfield, P.G., Lenssen, A.W., Blodgett, S.L., Kott, R.W.

“…In dryland farming areas of Montana, annual precipitation is not sufficient for annual planting of cereal grains. Instead, a crop-summer fallow farming system…”
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Land Rolling Does Not Influence Productivity of Subsequent-Year Spring Wheat by Lenssen, A.W., Sainju, U.M.

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Amino acid biosynthesis byproducts are a suitable source of nitrogen for corn production by Quezada, J.C., Lenssen, A.W., Moore, K.J., Sawyer, J.E., Summer, P.

“…•Amino acid biosynthesis byproducts are a suitable replacement of N fertilizer for corn production.•Corn grain yields using biosynthesis byproducts were…”
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Cropping sequence and tillage system influences annual crop production and water use in semiarid Montana, USA by Lenssen, A.W., Johnson, G.D., Carlson, G.R.

“…Available water is typically the biggest constraint to spring wheat production in the northern Great Plains of the USA. The most common rotation for spring…”
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Long-Term Tillage and Cropping Sequence Effects on Dryland Residue and Soil Carbon Fractions by Sainju, U.M, Caesar-TonThat, T, Lenssen, A.W, Evans, R.G, Kolberg, R

“…Long-term management practices are needed to increase dryland C storage and improve soil quality. We evaluated the 21-yr effects of combinations of tillage and…”
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Cropping sequence and tillage system influences annual crop production and water use in semiarid Montana, USA by Lenssen, A.W, Johnson, G.D, Carlson, G.R

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Yield, Quality, and Water and Nitrogen Use of Durum and Annual Forages in Two-Year Rotations by Lenssen, A.W, Cash, S.D, Hatfield, P.G, Sainju, U.M, Grey, W.R, Blodgett, S.L, Goosey, H.B, Griffith, D.A, Johnson, G.D

“…Annual spring-seeded forage crops use less water than cereal grains, including durum (Triticum turgidum L. var. durum), and may be suitable to replace summer…”
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Regional Assemblages of Lygus (Heteroptera: Miridae) in Montana Canola Fields by Ritter, R. A., Lenssen, A. W., Blodgett, S. L., Taper, M. L.

“…Sweep net sampling of canola (Brassica napus L.) was conducted in 2002 and 2003 to determine Lygus (Heteroptera: Miridae) species composition and parasitism…”
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Tillage effects on dryland soil physical properties in northeastern Montana by Jabro, J.D, Sainju, U.M, Lenssen, A.W, Evans, R.G

“…We evaluated the effect of no tillage (NT) and conventional tillage (CT) on soil penetration resistance (PR), bulk density (BD), gravimetric moisture content…”
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Incorporating sheep into dryland grain production systems. III. Impact on changes in soil bulk density and soil nutrient profiles by Hatfield, P.G, Goosey, H.B, Spezzano, T.M, Blodgett, S.L, Lenssen, A.W, Kott, R.W, Marlow, C.B

“…Changes in soil bulk density and soil nutrient profiles are a major concern of dryland grain producers considering grazing sheep on cereal stubble fields. Our…”
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Incorporating sheep into dryland grain production systems. I. Impact on over-wintering larva populations of wheat stem sawfly, Cephus cinctus Norton (Hymenoptera: Cephidae) by Hatfield, P.G, Blodgett, S.L, Spezzano, T.M, Goosey, H.B, Lenssen, A.W, Kott, R.W, Marlow, C.B

“…Wheat stem sawfly (WSS), Cephus cinctus Norton (Hymenoptera: Cephidae) is the most damaging insect pest to Montana's $ 1 billion dollar per year grain…”
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Incorporating sheep into dryland grain production systems by Hatfield, P.G., Lenssen, A.W., Spezzano, T.M., Blodgett, S.L., Goosey, H.B., Kott, R.W., Marlow, C.B.

“…Weed control in fallow management to conserve soil moisture and nutrients is the largest variable cost to dryland grain production. Our objective was to…”
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Incorporating sheep into dryland grain production systems by Hatfield, P.G., Blodgett, S.L., Spezzano, T.M., Goosey, H.B., Lenssen, A.W., Kott, R.W., Marlow, C.B.

“…Wheat stem sawfly (WSS), Cephus cinctus Norton (Hymenoptera: Cephidae) is the most damaging insect pest to Montana's $ 1 billion dollar per year grain…”
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Incorporating sheep into dryland grain production systems by Hatfield, P.G., Goosey, H.B., Spezzano, T.M., Blodgett, S.L., Lenssen, A.W., Kott, R.W., Marlow, C.B.

“…Changes in soil bulk density and soil nutrient profiles are a major concern of dryland grain producers considering grazing sheep on cereal stubble fields. Our…”
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Incorporating sheep into dryland grain production systems. II. Impact on changes in biomass and weed density by Hatfield, P.G, Lenssen, A.W, Spezzano, T.M, Blodgett, S.L, Goosey, H.B, Kott, R.W, Marlow, C.B

“…Weed control in fallow management to conserve soil moisture and nutrients is the largest variable cost to dryland grain production. Our objective was to…”
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Photosynthetic Responses of Legume Species to Leaf-Mass Consumption Injury by Peterson, Robert K. D, Shannon, Courtney L, Lenssen, Andrew W

“…Several studies have addressed plant primary physiological responses (gas exchange responses) to insect herbivory. However, relatively few plant species have…”
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Distribution of Alfalfa Weevil (Coleoptera: Curculionidae) Larvae Among Postcutting Locations by Blodgett, Sue L., Lenssen, Andrew W.

“…A field study was conducted in 1996 and 1997 to determine survival and spatial patterns of alfalfa weevil, Hypera postica (Gyllenhal), larvae within and…”
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Forage quality of genetically diverse alfalfa germplasms at four phenological growth stages by Lenssen, A.W. (Kansas State Univ., Manhattan, KS (USA). Dept. of Agronomy), Sorensen, E.L, Posler, G.L

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Total cell wall and fiber concentrations of perennial glandular-haired and eglandular Medicago populations by Lenssen, A.W, Sorensen, E.L, Posler, G.L, Harbers, L.H

“…Host-plant resistance in alfalfa (Medicago sativa L.) is insufficient for control of the alfalfa weevil (Hypera postica) or the potato leafhopper (Empoasca…”
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