| Yields of the Field Experiments 1972 | 1 |
| Contents 1972 Classicals, Rotations, Crop Sequences | 3 |
| Conventions 1972 | 7 |
| 72/R/BK/1 Broadbalk - W. Wheat, Potatoes, Spring Beans | 9 |
| 72/R/HB/2 Hoosfield - Potatoes, Spring Beans, Barley | 14 |
| 72/R/WF/3 Wheat and Fallow - Wheat | 20 |
| 72/R/EX/4 Exhaustion Land - Barley | 21 |
| 72/R/PG/5 Park Grass - Permanent Grass | 22 |
| 72/R/AG/6 Agdell - Potatoes, Sugar Beet, Oats | 24 |
| 72/R/BN/7 Barnfield - Beans, S. Wheat, Barley | 34 |
| 72/R/GC/8 Garden Clover - Red Clover | 40 |
| 72/S/RN/1 Rotation I - Grass, Lucerne | 41 |
| 72/R/SN/2 Rotation II - Potatoes, Barley, Sugar Beet | 45 |
| 72/R/RN/1 and 72/R/RN/2 Ley Arable - Old Grass, Leys, Sugar Beet, Wheat, Barley | 52 |
| 72/W/RN/3 Ley/ARABLE - Leys, Potatoes, Barley, Wheat | 66 |
| 72/W/RN/4 Market Garden - Potatoes, Sugar Beet | 74 |
| 72/W/RN/5 Arable Reference Plots - Barley, Ley, Potatoes, W. Wheat, Kale | 79 |
| 72/W/RN/6 Arable Reference Plots - Oats, Sugar Beet, Barley, Ley, Potatoes, Old Grass | 83 |
| 72/R/RN/7 Residual Phosphate - Potatoes, Barley, Swedes | 87 |
| 72/R/RN/8 Cultivation/WEEDKILLER - Beans, Wheat, Potatoes, Barley | 92 |
| 72/R/RN/9 Cereal Disease Reference Plots - W. Wheat, S. Wheat, Oats, Beans | 99 |
| 72/R/RN/11 Irrigation - W. Wheat, Kale | 101 |
| 72/W/RN/12 Organic Manuring - Leys, Rye, Potatoes | 107 |
| 72/W/RN/13 Intensive Cereals - Ley, Potatoes, W. Wheat, Barley | 114 |
| 72/W/RN/14 Long Term Phosphate - Potatoes, Sugar Beet | 119 |
| 72/W/RN/15 Rotation and Fumigation - Potatoes, Barley, Sugar Beet | 125 |
| 72/R/CS/1 Levels of N and K - W. Wheat | 131 |
| 72/R/CS/2 Grazed Reference Plots - Old Grass | 133 |
| 72/R/CS/6 Wheat After Intensive Barley - W. Wheat | 135 |
| 72/R/CS/10 and 72/W/CS/10 Long Term Liming - Barley | 137 |
| 72/W/CS/11 Soil Structure - Barley | 142 |
| 72/R/CS/13 N Levels to Old Grass - Old Grass | 143 |
| 72/R/CS/14 NPK to Old Grass - Old Grass | 147 |
| 72/W/CS/16 Irrigation and Eelworms - Potatoes | 164 |
| 72/W/CS/20 Placement of Fumigant - Potatoes | 170 |
| 72/R/CS/24 Pk and Take-all - Barley | 172 |
| 72/W/CS/33 Rates of Nematicides Dosage - Potatoes | 176 |
| 72/W/CS/34 Nematicides in Crop Sequence - Sugar Beet | 179 |
| 72/W/CS/35 Nematicides Dosage - Potatoes | 184 |
| 72/R/CS/41 Cultivations and Soil Invertebrates - New Grass | 187 |
| 72/R/CS/42 Effect of Invertebrates on Yield - Old Grass | 189 |
| 72/R/CS/44 Break Crops and Wheat - Barley | 192 |
| 72/R/CS/49 and 72/W/CS/49 Fumigant and N - W. Wheat, S. Wheat | 194 |
| 72/W/CS/52 Fumigants, Temik and N - S. Wheat | 198 |
| 72/W/CS/55 Fumigation and N - S. Beans | 202 |
| 72/W/CS/56 Nematodes and Verticillium - W. Wheat | 204 |
| 72/R/CS/58 Crop Sequence and Take-all - S. Wheat | 206 |
| 72/R/CS/59 Break Crops and Wheat - Barley | 208 |
| 72/R/CS/61 Fungicides - Old Grass | 211 |
| 72/W/CS/63 Nematodes and Verticillium - W. Wheat | 216 |
| 72/W/CS/64 Fumigants and Ditylenchus - Onions | 218 |
| 72/W/CS/66 Dazomet and Nitrogen - Maize | 219 |
| 72/R/CS/74 Break Crops and Wheat - W. Wheat | 220 |
| 72/R/CS/76 and 72/W/CS/76 Rates of NPK Fertilisers - W. Wheat | 222 |
| 72/W/CS/77 Much Fertiliser and Fym - W. Wheat | 226 |
| 72/W/CS/78 Nematodes and Verticillium - Potatoes | 229 |
| 72/W/CS/79 Chemicals and Scab - Potatoes | 231 |
| 72/R/CS/82 Chemical Control of Soil-borne Pathogens - S. Beans | 233 |
| 72/R/CS/86 Weedkiller and Aqueous N - Old Grass | 235 |
| 72/R/CS/88 and 72/W/CS/88 Fertiliser and Fym - Potatoes | 239 |
| 72/W/CS/89 Dazomet and Organic Matter - Potatoes | 245 |
| 72/R/CS/90 Cultivations for Cereals - W. Wheat | 248 |
| 72/R/CS/93 and 72/W/CS/93 Rates of NPK Fertilisers - Potatoes | 250 |
| 72/R/CS/95 Control of Pests and Diseases - S. Beans | 254 |
| 72/W/CS/99 Effect of Breaks on Take-all - Barley | 256 |
| 72/W/CS/101 Grass, Effects of Nematodes - Old Grass | 258 |
| 72/R/CS/102 Nematicides and Ditylenchus - Onions | 260 |
| 72/W/CS/103 Simazine Rates and Soil Types - S. Beans | 262 |
| 72/S/CS/1 Row Spacing and Seed Rates After Intensive Wheat - W. Wheat | 267 |
| 72/R/WW/1 and 72/W/WW/1 Winter Wheat Varieties and N | 270 |
| 72/R/WW/2 Winter Wheat Weedkiller and Aqueous N | 274 |
| 72/R/WW/3 Winter Wheat Weedkiller, Aqueous N and Fungicide | 277 |
| 72/R/WW/4 Winter Wheat Ewsm Spread by Infected Vectors | 280 |
| 72/R/WW/6 and 72/BB/WW/6 Winter Wheat Growth and Yield on Contrasted Sites | 282 |
| 72/R/WW/7 Winter Wheat Methods of Applying Fungicides | 286 |
| 72/R/WW/8 Winter Wheat Varieties, Sowing Dates and Bulb Fly | 288 |
| 72/R/WW/12 Winter Wheat Effects of Blue Green Algae | 290 |
| 72/R/WS/2 Spring Wheat Effects of Gaps | 293 |
| 72/R/WS/3 Spring Wheat N Levels and Physiology | 295 |
| 72/R/WS/4 Spring Wheat Dwarf Varieties, N and Ccc | 297 |
| 72/R/B/1 and 72/R/BB/B/1 Barley Growth and Yield on Contrasted Sites | 299 |
| 72/R/B/2 and 72/W/B/2 Barley Varieties and N | 303 |
| 72/R/B/3 Barley Weedkiller and Aqueous N | 306 |
| 72/R/B/4 Barley Times of Applying Fungicides | 309 |
| 72/R/B/5 Barley Control of Cereal Aphids and Bydv | 311 |
| 72/R/B/6 Barley Early and Late Mildew | 313 |
| 72/R/B/9 Barley Fungicides | 315 |
| 72/R/B/10 Barley Methods of Applying Phenylphosphonic Acid | 317 |
| 72/S/B/1 Barley Varieties, Ppa, Rates and Times of N | 320 |
| 72/R/BE/1 Spring Beans Effects of Mass Selection | 323 |
| 72/R/BE/2 Spring Beans Varieties and Viruses | 325 |
| 72/R/BE/3 Spring Beans Control of Pests and Diseases | 327 |
| 72/R/BE/4 Spring Beans Effects of Aphids | 329 |
| 72/R/BE/6 Spring Beans Effects of Heat Treatment | 331 |
| 72/R/BE/8 Spring Beans N, Carbohydrate and Irrigation | 334 |
| 72/R/BE/9 Spring Beans Roguing and Viruses | 336 |
| 72/R/P/1 Potatoes Spacing, Seed Size and Fertiliser | 338 |
| 72/W/P/1 Potatoes Formalin and Potato Cyst Nematode | 342 |
| 72/R/P/2 and 72/W/P/2 Potatoes Seed Stocks, Disease and Fungicides | 344 |
| 72/R/P/3 Potatoes Blight and Aphid Reference Plots | 350 |
| 72/W/P/3 Potatoes Sprays and Scab Control | 353 |
| 72/R/P/5 Potatoes Seed Sources | 355 |
| 72/R/SB/1 Sugar Beet Effects of Collembola on Seedlings | 358 |
| 72/R/M/5 Maize and Sweet Corn Control of Fruit Fly | 360 |
| 72/E/1 Mete0rological Records - Rothamsted, Woburn and Saxmundham | 368 |
| Convertion Factors | 371 |
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