410 research outputs found
Solvent action of nitrification and sulfofication
Cover title.Bibliography: p. 257.Mode of access: Internet
The composition of wheat: influence of various factors on the phosphorus, potassium and nitrogen content of the wheat plant
Cover title.Mode of access: Internet
Soil investigations: composition of calcareous and non-calcareous soils (with special reference to phosphorus supply)
Caption title.Mode of access: Internet
Barnyard manure: production, composition, conservation, reinforcement and value
Cover title.Mode of access: Internet
Sulphur in relation to soils and crops
Cover title.Bibliography: p. 255-256.Mode of access: Internet
Relation of phosphorus and nitrogen in soil to the composition of wheat
Cover title.Mode of access: Internet
- …