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5622. Ramig, R.E., R.R. Allmaras and R.I. Papendick. 1983. Water conservation: Pacific Northwest. p. 105-124.. IN: H.E. Dregne and H.O. Willis (eds.). Dryland Agriculture. ASA Monograph 23..
Descriptions of tillage and summer fallow practices in 200-400 mm/yr precip. zones. Covers: fall, spring, summer tillages for summer fallow; weed control; time of planting. Also descriptions of conservation tillage practices in fallow such as stubble mulching, chemical fallow. Annual cropping is included and sections cover moldboard plowing, fall chiseling, cloddy seedbeds, no-till, slot mulching. T: precipitation and soil water storage for 3 tillages. Soil water evaporation rates.
7581. Wilkins, D.E., D.A. Hasch, P.E. Rasmussen and J.M. Kraft. 1984. Chisel plowing effects on pea growth.. Amer. Soc. Agric. Engrs. Paper No. 84-1011.
Rupturing the tillage pan with a chisel and planting directly over the chisel mark increased dry pea yields by as much as 50%. Chiseling and not rupturing the pan depressed yields. Root disease was not influenced by chisel tillage. T: Pea yield with and without chisel treatments. Pea root disease index. Soil water status as influenced by chisel tillage.