Literaturrecherche

Literatur Fasterding F (1973) Fremdenverkehrsförderung als Maßnahme zur Verbesserung der Einkommenslage der Landwirtschaft. Neues Arch Niedersachsen 22(1):31-42

Literatur Domsch KH (1973) How do losses in nodulation compare with reduction in healthy seedlings from an economical aspect? Acta Agron Akad Sci Hung 22:460

Literatur Flaig W (1973) Introduction to some fields of soil organic matter studies in relation to soil productivity. In: Contributions of soil organic matter to production potential of soils and some proposals for practical application : [9 lectures delivered at Nuclear Research Laboratory, Indian Agricultural Research Institute, New Delhi, from 12. July to 18. September 1973]. Braunschweig: FAL, pp 1-33

Literatur Flaig W (1973) Formation of humic substances from plant residues. In: Contributions of soil organic matter to production potential of soils and some proposals for practical application : [9 lectures delivered at Nuclear Research Laboratory, Indian Agricultural Research Institute, New Delhi, from 12. July to 18. September 1973]. Braunschweig: FAL, pp 34-70

Literatur Flaig W (1973) Slow releasing nitrogen fertilizer from lignosulfonates of pulp and paper industries - (N-lignin)-production and its effect on plant growth due to production conditions. In: Contributions of soil organic matter to production potential of soils and some proposals for practical application : [9 lectures delivered at Nuclear Research Laboratory, Indian Agricultural Research Institute, New Delhi, from 12. July to 18. September 1973]. Braunschweig: FAL, pp 71-94

Literatur Flaig W (1973) N-lignin as nitrogen fertilizer and its special effects. In: Contributions of soil organic matter to production potential of soils and some proposals for practical application : [9 lectures delivered at Nuclear Research Laboratory, Indian Agricultural Research Institute, New Delhi, from 12. July to 18. September 1973]. Braunschweig: FAL, pp 95-125

Literatur Flaig W (1973) Biosynthesis of humic substances especially participation of nitrogenous compounds. In: Contributions of soil organic matter to production potential of soils and some proposals for practical application : [9 lectures delivered at Nuclear Research Laboratory, Indian Agricultural Research Institute, New Delhi, from 12. July to 18. September 1973]. Braunschweig: FAL, pp 126-171

Literatur Scholtyssek S, Gühne W, Torges H-G, Fuhrken E, Klein FW, Gerlach J (1973) Energie- und Eiweißbedarf von schweren Mastputen. Arch Geflugelkd 37(6):229-236