Browse on keywords: crop rotation PALS
Search results on 05/21/13
765. Benson, V., W. Goldstein, D. Young, J. Williams, and C. Jones. 1988. Impacts of cropping practices on nitrogen use and movement.. Proc. Intl. Conf. on Dryland Farming.
Conventional and PALS practices were used as inputs for the EPIC model to simulate the effects of the systems over 108 years on an Athena soil. Total erosion over 108 yr under PALS was 40% less than the conventional system. Nitrogen loss through water was 25% less under PALS than conventional. Percolation loss of N was zero for both systems. Neither system had significant increase or decrease in yields after 108 yr of erosion.
2200. Goldstein, W.A. and Young, D.L.. 1987. An agronomic and economic comparison of a conventional and a low-input cropping system in the Palouse.. Amer. J. Alternative Agriculture 2(2):51-56.
Describes the results of Goldstein's work with the pea-medic/medic/wheat rotation in comparison with a wheat/barley/wheat/pea rotation. Variable costs for PALS were 44% of those in the conventional system. The conventional system generated higher gross returns, and higher net returns under subsidized prices, while the PALS was economically attractive at market prices.
7733. Young, D.L. and W. Goldstein. 1988. How government farm programs discourage sustainable cropping systems: a U.S. case study.. How systems work: Proc. Farming Systems Research Symp. 1987.
Compares enterprise budgets for wheat production in the Palouse of a conventional systems using normal fertilizers and pesticides with a PALS rotation using black medic and limited pesticides. Costs per acre were $130 for conventional and $57 for PALS, with net returns higher for PALS under all scenarios except a high yield site with government price supports. PALS became more profitable than conventional with wheat at $3.50/bu for a high yield site and at $5.00/bu for a low yield site.