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Subjects yieldsx
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1. A study of the value of crop rotation in relation to soil productivity
Author(s):
Weir, Wilbert Walter , 1882-
Subject(s):
Crop rotation , Soil productivity , crop rotation , fertilizers , yields , crop yield , crop production , soil productivity , long term experiments , research methods , land management , soil management
Year:
1926
2. A comparison of slit tillage and subsoiling in a subsurface hardpan soil
Author(s):
Busscher, W. J.
Subject(s):
Tillage , No-tillage , Duricrusts , Soil ripping , Crop yields , tillage , crops , yields
Year:
1993
3. A study of the value of crop rotation in relation to soil productivity
Author(s):
Weir, Wilbert Walter, 1882 , USDA
Subject(s):
crop rotation , fertilizers , yields , crop yield , crop production , soil productivity , long term experiments , research methods , land management , soil management , Crop rotation. , Soil productivity.
Series:
Bulletin of the U.S. Department of Agriculture.
Year:
1926
4. A variety index for use in corn belt soybean yield models
Author(s):
Turner, Martin.
Subject(s):
Soybean , Yields , Middle West , Agricultural estimating and reporting , soybeans , yields , estimation
Year:
1985
5. Agricultural productivity in the United States
Author(s):
Ahearn, Mary. , United States Dept. of Agriculture. Economic Research Service.
Subject(s):
Agricultural productivity , United States , Agriculture , Economic aspects , productivity , yields
Year:
1998
6. An evaluation of two feedback versions of the Ceres-Maize model
Author(s):
Iwig, William C. , Klugh, Benjamin F. , United States Dept. of Agriculture. Statistical Reporting Service. Statistical Research Division.
Subject(s):
Corn , Yields , Forecasting , Mathematical models , Sampling , Crop yields , Simulation methods , corn , agricultural forecasts , data analysis , sampling , yields , simulation models , mathematical models
Year:
1986
7. Attributes for eleven commercial Pinto varieties in Nebraska--1993.
Author(s):
Schild, J. , Merrigan, T. , DeBoer, K. , Peterson, L.
Subject(s):
Phaseolus vulgaris , varieties , parentage , maturity stage , seeds , yields , disease resistance , Nebraska
Series:
Annual report.
Year:
1993
8. Attributes for ten commercial Great Northern varieties in Nebraska--1993.
Author(s):
Schild, J. , Merrigan, T. , DeBoer, K. , Peterson, L.
Subject(s):
Phaseolus vulgaris , varieties , parentage , maturity stage , seeds , yields , disease resistance , Nebraska
Series:
Annual report.
Year:
1993
9. Bean plant spacing and density in the Brazilian cerrado.
Author(s):
Oliveira, I.P. de.
Subject(s):
Phaseolus vulgaris , row spacing , yields , Brazil
Series:
Annual report.
Year:
1987
10. Bean planting systems in Brazil.
Author(s):
Oliveira, I.P. de.
Subject(s):
Phaseolus vulgaris , fertilizer application , sowing , yields , Brazil
Series:
Annual report.
Year:
1987
11. Better grain-sorghum crops
Author(s):
Ball, Carleton R. (Carleton Roy) , 1873-1958
Subject(s):
Sorghum , climatic factors , cultivars , feed grains , crop acreage , yields , drought tolerance , early development , dwarf cultivars , productivity , plant characteristics , agronomic traits , mechanical harvesting
Series:
Farmers' bulletin
Year:
1911
12. Breeding of common bean "carioca" type to obtain commercial cultivars.
Author(s):
Peloso, M.J. del , Costa, J.G.C. da , Rava, C.A.
Subject(s):
agricultural programs and projects , breeding , Phaseolus vulgaris , cultivars , yields , genotype , testing , Brazil
Series:
Annual report.
Year:
1993
13. Changes overtime in the proportion of beans in a varietal mixture.
Author(s):
Dessert, J.M.
Subject(s):
Phaseolus vulgaris , varieties , seed mixtures , yields
Series:
Annual report.
Year:
1987
14. Comparisons of Phaseolus acutifolius and Phaseolus vulgaris grown in a semi-arid environment in saline soils.
Author(s):
Goertz, S. , Kobriger, J.
Subject(s):
Phaseolus acutifolius , Phaseolus vulgaris , semiarid zones , saline soils , yields
Series:
Annual report.
Year:
1986
15. Development of a Phaseolus crop simulation model.
Author(s):
Hoogenboom, G. , Jones, J.W. , White, J.W. , Boote, K.J.
Subject(s):
simulation models , Phaseolus vulgaris , yields
Series:
Annual report.
Year:
1987
16. Effect of harvest date on yield and quality of several snap bean cultivars.
Author(s):
Mullins, C.A. , Coffey, D.L.
Subject(s):
Phaseolus vulgaris , cultivars , harvest date , yields , traits
Series:
Annual report.
Year:
1987
17. Effect of irrigation on drymatter production and yield of common beans (Phaseolus vulgaris (L.)).
Author(s):
Hoogenboom, G. , Jagtap, S.S. , Jones, J.W. , Boote, K.J.
Subject(s):
Phaseolus vulgaris , varieties , irrigation , dry matter accumulation , yields
Series:
Annual report.
Year:
1986
18. Effect of seed size and depth of planting on seedling emergence and yield of two pinto bean cultivars.
Author(s):
Miklas, P.N. , Pearson, C.H.
Subject(s):
Phaseolus vulgaris , cultivars , seedling emergence , yields , seeds
Series:
Annual report.
Year:
1987
19. Effects of ATCA + folic acid in beans.
Author(s):
Sanjuan, B. , Palomares, G. , Noguera, V. , Toledo, J.M.
Subject(s):
Phaseolus vulgaris , dosage , yields , application timing
Series:
Annual report.
Year:
1993
20. Effects of relative distance of bean stands from maize stands on yield.
Author(s):
Edje, O.T.
Subject(s):
Phaseolus vulgaris , Zea mays , mixed cropping , yields , Malawi
Series:
Annual report.
Year:
1985