Economy of milk production and co-operation of farms

U radu je istraživana ekonomičnost utroška biljnih i stočnih hraniva u poljoprivredi (i u proizvodnji mlijeka) ovisno o suradnji obiteljskih i krupnih društvenih farmi u zasebnom (I/II) ili u njihovom zajedničkom interesu (II-I) 1963-2003. godine. Netržno privređivanje i s njim u vezi suradnja farmi u zasebnom interesu (I/II) uvjetuje neregionalnu tehnološku strukturu gnojidbe tla. U njoj prevladava mineralna gnojidba 36-60% 1963-83. (i do 70% prema trendu do 2003). Ekonomičnost utroška biljnih hraniva je u opadanju od indeksa 100 na 96 (i do 82). Neregionalna tehnološka struktura hranidbe stoke i proizvoda uvjetuje pad učešća voluminozne hrane od 60% na 44%, a mlijeka od 63% na 53% vrijednosti stočarskih proizvoda. Odvojenost stočarskih od ratarskih farmi čini neekonomičnom upotrebu stajnjaka i voluminozne stočne hrane, a i zagađuje okolinu. Tržno privređivanje i suradnja farmi u zajedničkom interesu (partnerstvo) omogućuju pojavu regionalne tehnološke strukture gnojidbe tla s prevladavanjem učešća stajske gnojidbe do 79%, a i regionalne strukture proizvoda. Ekonomičnost utroška biljnih hraniva raste od 100 na 104. U regionalnoj strukturi hranidbe stoke ne pada učešće voluminozne hrane ispod 45%, a vrijednost mlijeka ispod 63% vrijednosti stočarskih proizvoda. Povezivanje ratarskih i obiteljskih stočarskih farmi čini ih ekonomičnima i nezagadivačima okoline.The study relative to the economy of plant nutrients and cattle feed consumption in agriculture (including milk production) indicated variation depending on co-operation between family farms and large scale socially-owned farms in their separate interest (I/II) or in their common interest (II-I) during the period 1963-2003. Non-market economy and co-operation of farms in their separate interest (I/II) was the cause of a non-regional technological structure in soil fertilization. The inorganic fertilization dominated with 36-60% in 1963-83 (and would reach 70% according to the trend until 2003). The economy of plant nutrients consumption decreased from index 100 to 96 (even to 82). In a non-regional technological structure of cattle feeding and milk production use of roughage decreased from 60 to 44% and milk production from 63 to 53% of cattle produce value. Separation of animal farms from crop farms made uneconomical the use on farmyard manure and roughage and was the cause of environment polluting. Market economy and co-operation of farms in common interest (partnership) enabled regional technological structure of soil fertilization and farmyard manure dominated to 79%, together with regional produce structure. Economy of consumption of plant nutri-tiens increased from 100 to 104. In regional structure of cattle feeding roughage use did not drop below 45% and milk value below 63% of cattle produce. Connection of crop farms and family animal farms made them, economical and in this way the did not pollute the environment