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Search results on 08/14/18
661. Barnes, O.K. and D.W. Bohmont. 1958. Effect of cropping practices on water intake rates in the northern Great Plains.. WY Agr. Expt. Sta. Bulletin 358.
The rate of water absorbed by the soil was evaluated on bare fallow, trashy fallow, and grassland. Total absorbed water in one hour was 1.55, 2.80, and 2.11 inches for the respective covers. The water intake rate at one hour was 0.3 in/hr for bare fallow and 2.26 in/hr for trashy fallow. Water intake rates associated with other tillage practices are also presented in this bulletin.
1360. Cochran, V.L., L.F. Elliott, and R.I. Papendick. 1982. Effect of crop residue management and tillage on water use efficiency and yield of winter wheat.. Agron. J. 74:929-932.
4086. Massee, T.W. and H. McKay. 1979. Improving dryland wheat production in eastern Idaho with tillage. ID Agr. Expt. Sta. Bull. #581.
Stubble increased snowcatch and wheat yields; fall chiseling increased water infiltration and wheat yields; burning straw decreased yields after 6 yrs; row seeding a response up to 50 lb/ac N; research done at Tetonia; early fall seeding gave highest potential yield, but more disease and weed problems; annual cropping is possible when stored soil moisture exceeds 3 1/3 feet. T: tillage X moisture, yields
4827. Nelson, E.. 1908. Dry farming in Idaho. ID Agr. Expt. Sta. Bull. #62.
Caldwell, ID - better sites yield 30-40 bu/ac wheat, even 60; alfalfa - several cuttings; drier sites yield 20-30 bu/ac; in Utah, 1" of rain stored in soil produces 2.5 bu wheat; summerfallow necessary; eastern WA - late spring plowing with early disking and harrowing is effective weed control; "slicker" - homemade tool in Columbia Basin to kill weeds; Subsurface packer - after plowing, increased yields in Columbia Basin 25%. Idaho soils - short on N and humus; alternate crop possibilities: milo, sorghum, field peas, alfalfa, grass; also spring emer (speltz), hulled wheat (adapted to arid conditions); WW vs. SW has 4-5 bu/ac yield advantage.
5593. Ramig, R.E. and L.G. Ekin. 1978. Soil water storage as influenced by tillage and crop residue management.. OR Agr. Expt. Sta. 1978 Progress Report..
9800. Siddoway, F.H., H.C. McKay, and K.H. Klages. 1956. Dryland tillage: methods and implements.. ID Agr. Expt. Sta. Bull. 252 Combined Series, Moscow, ID.
Research at Tetonia, ID. High elevation, ave. ann. precip. 13", evenly distributed. 3% SOM. Examined various stubble and tillage treatments. T: yield, soil moisture, soil erosion.
10245. Ramig, R.E. and L.G. Ekin. 1991. When do we store water with fallow?. 1991 Columbia Basin Agricultural Research, Special Report 879, OR Agr. Expt. Sta., Corvallis.
Water storage was monitored at Pendleton (16" precip.) and Moro (11" precip.), Oregon from 1978-1984. Storage percentages for the fallow winter, fallow summer, and crop winter were 75, -19, and 54 %, respectively. Significantly less water was stored during the fallow winter in both rainfall zones where the wheat stubble had been burned in the fall. Differences in water conservation and storage among other treatments (spring plow, fall flail, fall disk, and spring sweep) were not significant at both locations. Total water storage for the 18-month crop-fallow cycle was 37 % at Moro and 33% at Pendleton. The best opportunity to improve water conservation and storage in this climate appears to be during the crop winter when only 40-54% of the precipitation was stored.