Fertilizer molybdenum

Lucerne and cauliflower grown on European Muschelkalk and Keuper weathering soils without molybdenum fertilization suffered from molybdenum deficiency (Zabel and Bergmann 1957, Trobisch and Germar 1959, Trobisch 1966, Anke 1960, Anke et al. 1960, Bergmann 1959, Brandenburg 1960). 

Reisenauer HM (1956) Molybdenum content of alfalfa in relation to dfidency symptoms and response to molybdenum fertilization. Soil Sci 81 238-242. 

Molybdenum fertilization increases the drought resistance of plants by maintaining a higher degree of hydration of cell colloids (Vasil eva and Startseva, 1959). The effect is ascribed to the higher contents of total N and protein N and starch in Mo-sufficient plants. Molybdenum deficiency decreases the resistance of plants to stresses such as low temperature and waterlogging (Vunkova-Radeva et al., 1988). 

Bozova, L., and Kozarova, M. (1973). The accumulation of free amino acids in two-year-old lucerne after molybdenum fertilizing (in Bulgarian). Rasteniev" dni-Nauki 10 57-65. 

Domska, D., Benedycka, Z., and Krauze, A. (1989). Residual effect of molybdenum fertilization on the content of nitrogen compounds in beans (in Polish). Acta Academiae Agriculturae ac Technicae olstenensis, Agricultura 48 99-106. 

Gruhn, K. (1961). The effect of molybdenum fertilizing on some nitrogen fractions in lucerne and red clover (in German). Z. Pflanzenernaehr. Dueng. Bodenkde. 95 110-18. 

Hawes, R. L., Sims, J. L., and Wells, K. L. (1976). Molybdenum concentration of certain crop species as influenced by previous applications of molybdenum fertilizer. Agronomy J. 68 217-18. 

Shivashankar, K., and Hagstrom, G. R. (1991). Molybdenum fertilizer sources and their use in crop production. In International Symposium on the Role of Sulphur, Magnesium ami Micronutrients in Balanced Plant Nutrition (1991 Sichuan, China), ed. S. Portch, pp. 297-305 Hong Kong Potash and Phosphate Institute. 

Molybdenum fertilizers can be applied broadcast or in bands incorporated into the soil. Because the amounts of Mo required are so low, molybdenized P or NPK fertilizers generally are used to add volume and thus provide a more uniform Mo application to the field. These products are made by spraying a soluble Mo source onto the fertilizer in the granulation process or by adding the Mo source to the acid used in the manufacture of the fertilizer. Because these Mo sources do not react with the components of the fertilizer, the availability of Mo to plants is not affected. There is also evidence that Mo uptake by plants is enhanced by... 

Molybdenum fertilizers are discussed elsewhere in this volume and will be discussed only briefly here. In the majority of the studies cited in this chapter, Na2Mo04 -2H20 was the Mo source most commonly used for experiments. Murphy and Walsh (1972) reviewed Mo fertilizers and their rates and application methods. The methods, sources, and rates of application for all cited studies that showed positive yield responses are... 

Johansen, C., Kerridge, P. C., Luck, P. E., Cook, B. G., Lowe, K. F., and Ostrowski, H. (1977). The residual effect of molybdenum fertilizer on growth of tropical pasture legumes in a sub-tropical environment. Aust. J. Exp. Agric. Anim. Husb. 17 961-8. 

Yanni, Y. G. (1992). Performance of chickpea, lentil and lupin nodulated with indigenous or inoculated rhizobia, boron, cobalt and molybdenum fertilization schedules. World J. Microbiol. Biotech. 8 607-13. 

---