Turfgrasses Grasses 68 Turf management 59 Fertilizers 54 Bermuda grass 33 Diseases and pests 28 Cynodon 21 more ... Growth 21 Nitrogen fertilizers 18 Plants, Effect of herbicides on 14 Control 12 Organic fertilizers 10 Handbooks, manuals, etc 8 Plants, Effect of shade on 7 Soils 7 Physiology 6 Plant-water relationships 6 Turfgrasses industry 6 Weeds 6 Congresses 5 Crabgrass 5 Lawns 5 Herbicides 4 Irrigation 4 Sandy soils 4 Axonopus 3 Breeding 3 Forage plants 3 Fungal diseases of plants 3 Handbooks, manual, etc 3 less ...