Literaturrecherche

Literatur Brooke DWI (1973) A practical implementation of a wide wire tractor guidance system. Landbauforsch Völkenrode SH 017:71-81

Literatur Stansfield JR (1973) Operator aids to field machinery guidance. Landbauforsch Völkenrode SH 017:27-40

Literatur Jahns G (1973) Theoretische Betrachtungen zu Möglichkeiten und Grenzen induktiver Fahrzeugleitsysteme. Landbauforsch Völkenrode SH 017:57-69

Literatur Rosegger S (1973) Systeme und Probleme des Milchentzuges. Landbauforsch Völkenrode SH 018:59-73

Literatur Schlünsen D (1973) UNICAR-System - eine Möglichkeit zur Automatisierung der Milchproduktion. Landbauforsch Völkenrode SH 018:93-110

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 Flaig W (1973) About the possible effect of fractions of humic substances on plant metabolism and yield. 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 172-217

Literatur Flaig W (1973) Chemistry and some physical properties of fractions of soil organic matter. 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 218-250

Literatur Flaig W (1973) Characterization of humic systems in different soils. 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 251-276