| Yields of the Field Experiments 1978 |
| Contents 1978 | 3 |
| Conventions 1978 | 7 |
| Harvest Areas for Cereals | 8 |
| Table of Means | 8 |
| 78/R/BK/1 Broadbalk - Wheat, Potatoes, Beans | 9 |
| Experiments - Classicals | 9 |
| 78/R/HB/2 Hoosfield - Barley, Potatoes , Beans | 14 |
| 78/R/WF/3 Wheat and Fallow - Wheat | 21 |
| 78/R/EX/4 Exhaustion Land - Barley | 22 |
| 78/R/PG/5 Park Grass - Old Grass | 24 |
| 78/R/AG/6 Agdell - Ryegrass, Ryegrass/CLOVER | 29 |
| 78/R/BN/7 Barnfield - Ryegrass | 45 |
| 78/R/GC/8 Garden Clover - Clover | 48 |
| 78/S/RN/1 Rotation I - Grass, Lucerne, Potatoes, Beans, Wheat | 50 |
| 78/S/RN/2 Rotation II - Wheat, Barley | 58 |
| Rotations | 64 |
| 78/R/RN/1 and 78/R/RN/2 Ley/ARABLE - Old Grass, Leys, Potatoes, Wheat, Oats, Barley | 64 |
| 78/W/RN/3 Ley/ARABLE - Leys, Barley, Oats , Wheat | 74 |
| 78/W/RN/4 Market Garden - Ryegrass | 80 |
| 78/R/RN/5 Arable Reference Plots - Barley, Ley, Potatoes, Wheat, Kale, Permanent Grass | 81 |
| 78/W/RN/6 Arable Reference Plots - Oats, Sugar Beet, Barley, Ley, Potatoes, Permanent Grass | 86 |
| 78/R/RN/7 Residual Phosphate - Ley, Wheat | 90 |
| 78/R/RN/8 Cultivation/WEEDKILLER - Barley | 96 |
| 78/W/RN/12 Organic Manuring - Wheat, Potatoes | 99 |
| 78/W/RN/13 Intensive Cereals - Wheat, Barley | 103 |
| 78/W/RN/14 Long-term Phosphate - Ley | 107 |
| 78/W/RN/16 Effects of Deep P K - Barley | 111 |
| Crop Sequences | 113 |
| 78/R/CS/10 and 79/W/CS/10 Long-term Liming - Barley | 113 |
| 78/W/CS/11 Soil Structure - Barley | 124 |
| 78/R/CS/13 N Levels to Old Grass - Old Grass | 126 |
| 78/R/CS/14 N P K to Old Grass - Old Grass | 130 |
| 78/R/CS/24 P K and Take-all - Wheat | 144 |
| 79/W/CS/34 Nematicides in Crop Sequence - Potatoes, Wheat, Barley | 147 |
| 78/W/CS/35 Nematicides Dosage - Potatoes | 154 |
| 78/R/CS/41 Cultivations and Soil Invertebrates - Old Grass, New Grass | 159 |
| 78/W/CS/66 Dazomet and Nitrogen - Maize | 162 |
| 78/R/CS/90 Cultivations for Cereals - Wheat | 164 |
| 78/W/CS/99 Effects of Breaks on Take-all - Barley, Beans | 166 |
| 78/R/CS/130 Effects of Earthworm Inoculation - Ley | 168 |
| 78/R/CS/131 Effects of Earthworm Destruction - Old Grass | 171 |
| 78/R/CS/133 Control of Pathogens - Maize | 174 |
| 78/R/CS/140 Chemical Reference Plots - Barley | 176 |
| 78/R/CS/156 Leatherjacket Study - Old Grass | 179 |
| 78/R/CS/161 Injected N - Old Grass | 182 |
| 78/R/CS/162 Times of Applying Acaricide - Ryegrass | 204 |
| 78/R/CS/165 Sclerotinia Control - Red and White Clover | 207 |
| 78/W/CS/174 Sowing Dates and Ccn - S. Wheat, Barley and Oats | 212 |
| 78/R/CS/180 Factors Affecting Yield - Wheat | 220 |
| 78/W/CS/181 Green Manure - Barley | 229 |
| 78/W/CS/184 Cereal Cyst Nematode Study - Oats | 233 |
| 78/R/CS/193 Effects of Pathogens - Oilseed Rape | 239 |
| 78/R/CS/198 Nitrification Inhibitors - Barley | 244 |
| 78/R/CS/200 and 78/W/CS/200 Factors Affecting Yield - Ryegrass, Clover, Lucerne | 246 |
| 78/R/CS/201 Factors Affecting Yield - Wheat | 263 |
| 78/R/CS/202 Effects of Phialophora - Wheat | 273 |
| 78/R/CS/204 Clover Varieties in Grass/CLOVER Mixtures - Ryegrass, Clover | 275 |
| 78/R/CS/205 Nitrification Inhibitors - Barley | 285 |
| 78/R/CS/206 Late N - Wheat | 288 |
| 78/R/CS/211 Factors Affecting Eyespot - Wheat | 290 |
| 78/R/CS/212 Seasonal Effects of Take-all - Beans, Wheat | 292 |
| 78/R/CS/213 Pesticide and Establishment - Ryegrass | 294 |
| 78/R/CS/216 and 78/W/CS/216 Effects of Subsoiling and Deep P K - Barley | 309 |
| 78/R/CS/222 Factors Affecting Yield - Beans | 312 |
| 78/R/CS/223 Late N - Potatoes | 323 |
| 78/S/C/1 Varieties, N and Ccc - Barley | 326 |
| Annuals - Wheat | 336 |
| 78/R/WW/1 Varieties and N - W. Wheat | 336 |
| 78/R/WW/2 and 78/W/WW/2 Aqueous N and Nitrification Inhibitors - W. Wheat | 339 |
| 78/R/WW/4 Precision Sowing, Irrigation and N - W. Wheat | 348 |
| 78/R/WW/5 Seed Rates and Divided N Dressings - W. Wheat | 354 |
| 78/R/WW/6 Fungicides and Grain Microflora - W. Wheat | 357 |
| 78/R/WW/7 Sowing Dates and Insecticides - W. Wheat | 359 |
| 78/R/WW/8 Rates and Times of Applying N - W. Wheat | 361 |
| 78/R/WW/9 Parasites and Predators of Insect Pests - W. Wheat | 363 |
| 78/S/WW/1 Rates and Times of N and Fungicides - W. Wheat | 365 |
| 78/R/WS/1 Bacterial Inoculation - S. Wheat | 369 |
| 78/R/WS/2 Integrated Pest Control - S. Wheat | 373 |
| 78/R/WS/3 Fungicides and Grain Microflora - S. Wheat | 375 |
| 78/R/WS/4 Irrigation, Lodging, Ccc and Microflora - S. Wheat | 377 |
| Barley | 379 |
| 78/R/B/2 Factors Affecting Yield and Disease Control - Barley | 379 |
| 78/R/B/3 Sowing Dates, Vernalization and Mildew - Barley | 384 |
| 78/R/B/4 and 78/W/B/4 Varieties and N - Barley | 386 |
| 78/R/B/5 Controlled Drop Application of Tridemorph - Barley | 391 |
| 78/R/B/7 Mildew Sensitivity to Ethirimol - Barley | 393 |
| 78/R/B/8 N and Foliar Diseases - Barley | 394 |
| 78/R/B/9 Nitrification Inhibitor and Foliar Diseases - Barley | 396 |
| 78/R/B/10 Sowing Dates and Pathogen Control - Barley | 399 |
| 78/R/B/17 Mildew Control in a Serially Balanced Design - Barley | 402 |
| 78/R/B/18 Mixed Varieties and Mildew - Barley | 404 |
| 78/R/O/1 Sowing Dates and Insecticides - Oats | 406 |
| Beans | 408 |
| 78/R/BE/1 Control of Chocolate Spot - Beans | 408 |
| 78/R/BE/2 Winter Beans Control of Sitona - Beans | 410 |
| 78/R/BE/5 Aphids and Entomophthora - Beans | 412 |
| 78/R/BE/6 Comparison of Sprayers - Beans | 415 |
| 78/R/BE/8 Red Tick Lines - Beans | 417 |
| 78/R/BE/9 Drills and Plant Populations - Beans | 418 |
| 78/R/BE/13 Comparison of Fungicides - Beans | 420 |
| 78/R/BE/14 Times of Applying Permethrin - Beans | 422 |
| 78/R/PE/1 and 78/W/PE/1 Control of Pathogens - Peas | 423 |
| 78/R/RA/1 Foliar Fungicides - Oilseed Rape | 428 |
| 78/R/RA/2 Seed Dressings and Foliar Fungicides - Oilseed Rape | 430 |
| 78/R/P/1 and 78/W/P/1 Fungicides and Rhizoctonia - Potatoes | 432 |
| 78/R/P/3 Growth Study - Potatoes | 436 |
| 78/W/P/4 Oxamyl Sprays Against Pcn - Potatoes | 438 |
| 78/R/P/6 Polythene Sheet and Aphids - Potatoes | 440 |
| 78/R/G/1 and 78/W/G/1 Aqueous Urea and Nitrification Inhibitors - Grass | 442 |
| 78/E/1 Meteorological Records 1978 - Rothamsted | 455 |
| 78/E/1 Meteorological Records 1978 - Woburn and Saxmundham | 456 |
| Conversion Factors | 458 |
e-RAdoc:
The electronic Rothamsted Documents Archive
This work is licensed under a Creative Commons Attribution 4.0 International License.
eRAdoc
is developed at Rothamsted Research
