eRA e-RAdoc: Digited Documents from the Rothamsted Long-term Experiments

Rothamsted Experimental Station Report for 1969 Part 2

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Rothamsted Experimental Station Report for 1969 Part 2

TitlePages
Rothamsted Experimental Station Report for 1969 Part 21
Rothamsted Experimental Station Report for 1969 Part 22
Contents3
The Value of Residues from Long-period Manuring at Rothamtsed and Woburn I. Introduction 5
Ii. A Summary of the Results of Experiments Started by Lawes and Gilbert 7
III. The Experiments Made from 1957 and 1962, the Soils and Histories of the Sites on Which They Were Made 22
Iv. The Value to Arable Crops of Residues Accumulated from Superphosphate39
V. The Value to Arable Crops of Residues Accumulated from Potassium Fertilisers 69
The Residual Value of Farmyard Manure and Superphosphate in the Saxmundham Rotation II Experiment, 1899-196891
The Effects of Partially Sterilising Agricultural Soils With Formalin, and of Applying Nitrogen Fertilisers, on the Yields and N Contents of Spring and Winter Wheat, of Barley and of Grass 113
Chemical Control of Plant Growth135
Rhizobium in the Soils of the Rothamsted and Woburn Farms148
Rothamsted Insect Survey168
Index187
Conversion Factors / Conversion Tables190
Maps of Rothamsted and Woburn Farms192

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