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PAM IN AGRICULTURE AND ENVIRONMENTAL LAND 77 from acid soil conditions. Coal can provide humic acids which stimulatestabilization of soil organic fractions (Dzhanpelsov et al., 1984).Many fertilizers directly and indirectly affect soil physical
Inhibiting water infiltration with polyacrylamide and surfactants: Applications for irrigated agriculture R.D. Lentz ABSTRACT: Efficiencies of surface irrigation systems are often limited by infiltration conditions. Treatments that decrease
