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Organic & Integrated Tree Fruit Production

Tuesday, January 23, 2018

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Search results on 01/23/18

5141. Peterson, C.L., E.A. Dowding, and R.W. Harder. 1979. Chisel-Planter. A minimum tillage system for winter wheat.. ID Agr. Expt. Sta. CIS #476.
Drill is 11' wide, weighs 8700 lb when full; describes construction and operation of the drill; field results.

302. Allmaras, R.R., S.C. Gupta, J.L. Pikul and C.E. Johnson. 1979. Tillage and plant residue management for water erosion control on agricultural land in eastern OR.. Effects of tillage and crop residue removal on erosion, runoff, a.
Tillage and plant resiude management for water erosion control on agricultural land in eastern OR.

1819. Elliott, L.F. (ed.). 1987. STEEP - Conservation concepts and accomplishments.. Washington State Univ. Publ., 662pp..
A compilation of 48 papers covering: tillage and plant maagement; erosion and runoff predictions; plant design; pest management; socio-economic; integrated systems; technology transfer for cropping systems; 22 technical notes. T: many

1239. Carter, L.S. and G.R. McDole. 1942. Stubble mulch farming for soil defense.. USDA Farmers' Bulletin 1917.
Discusses the value of stubble mulch tillage for the various parts of the U.S. Shows a number of implements to achieve good residue cover, including noble blades, a rotary subsoiler that leaves surface pockets, modified moldboard plows.

1755. Duley, F.L. and J.C. Russel. 1942. Using crop residues for soil defense.. USDA Misc. Publ. 494.
Describes various tools for subsurface tillage, leaving residue on the surface.

4284. McDole, R.E. and S. Vira. 1980. Restricted summer fallow for soil erosion control under dryland crop production.. ID Agr. Expt. Sta. CIS #522.
Summer fallow for moisture conservation needed only where rainfall <16"; minimize soil pulverizing; use chem. fallow where possible.

4293. McDole, R.E. and S. Vira. 1980. Minimum tillage for soil erosion control under dryland crop production.. ID Agr. Expt. Sta. CIS #523.
Lists amount of residue remaining after various tillage operations; shows pictures of residue levels.

4387. McKay, H.C. and W.A. Moss. 1944. Stubble mulch farming in southern Idaho.. ID Agr. Expt. Sta. Bull. #256.
Wheat/fallow area of southern Idaho; severe erosion recognized in 1930's.

5389. Prato, T., H. Shi, R. Rhew, and M. Brusven. 1989. Soil erosion and nonpoint-source pollution control in an Idaho watershed.. J. Soil Water Cons. 44:323-328.
Offsite economic damage from cropland erosion has been estimated at between $2-6 billion. This study modelled erosion reduction, improvements in surface water quality, and impact on net returns for a watershed near Lapwai, Idaho, using a 1000 acre wheat-pea farm as the prototype. It concluded that total net farm income in the watershed increased 1.5% when average erosion was reduced to T. The study used a GIS system to model the outcomes of farm practice choices. Soil erosion was calculated with the USLE. Water quality impacts were estimated with AGNPS. Eleven resource management systems were modelled for each of the 16 farms in the watershed. The results indicate that minimum tillage with either cross-slope farming or contour farming is the most economically efficient resource management system for reducing erosion. Averaged over all farms, such a system increased annualized net returns by $1.05/ac and $1.38/ac, and reduced erosion by 5.2 T/ac/yr and 5.6 T/ac/yr for the min-til cross-slope and min-til contour systems respectively. To achieve a 70% erosion reduction (equalling 2T), no-till and permanent vegetation were the required systems. Net farm income increased 1.5% when total erosion was reduced 40%, and decreased 35% when erosion was reduced 70%. Total net farm income declined rapidly beyond 40% erosion reduction. Figure 5 shows net income versus erosion reduction.

6684. Stephens, D.E.. 1944. Effect of tillage and cropping practices on runoff, erosion, and crop yields in the wheat growing areas of Washington, Idaho, and Oregon.. USDA-SCS. Conservation practices on wheat lands of the Pacific Northwest..
An excellent summary of the dryland experiment station research in WA, ID and OR. Describes research on stubble mulching, tillage implements, crop rotations, fallow, etc. The use of sweetclover or alfalfa-grass were encouraged. T: yield, runoff, soil loss by tillage, rotation, fertilizer.

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