1. Allen SE (1984) Slow-release nitrogen fertilizers. In: RD Hauck (ed) Nitrogen in Crop Production, pp 195?206. Amer Soc of Agron Madison, Wis
2. Ashton FM and Crafts AS (1981). Mode of Action of Herbicides. pp 328?374. John Wiley and Sons, NY
3. Balke NE and Price TP (1988) Relationship of lipophilicity to influx and efflux of triazine herbicides in oat roots. Pest Biochem Physiol 30: 228?237
4. Bowman DC, Paul JL and Davis WB (1989) Nitrate and ammonium uptake by nitrogen-deficient perennial ryegrass and Kentucky bluegrass turf. J Amer Soc Hort Sci 114: 421?426
5. Bowman DC, Paul JL, Davis WB and Nelson SH (1989) Rapid depletion of nitrogen applied to Kentucky bluegrass turf. J Amer Soc Hort Sci 114: 229?233