Palov József: Az öntözések múltja a Dél-Tiszántúlon (A Békés Megyei Múzeumok Közleményei 8. Békéscsaba, 1985)

and XlXth centuries. The attempts of the years 1890—1930 then often ended with failures. Among the reasons for these there were: lacking professional knowledge; there were no convenient species of rice; the plots were overrun with weeds ; the costs for production were high. The more economical production between 1930 and 1938 was based on the results of reasearch work : the acclimatation of the Dunghan-Shali species ; the elaboration of fundamental principles concerning the salt-bearing of rice, the number of plants, setting and agrotechnical operations. On the territory east of the river Tisza the production of vegetables for the market with irrigation was acclimated by Bulgarian gardeners immigrated to Hungary at the end of the XlXth century. With the time the Hungarians attained their methods, then became independent in their use. Their successes in growing led to the development of vegetable production on the territory east of the river Tisza in our days, too. Between 1933 and 1941 they made attempts in the irrigation of orchards in the examined area on about 100 hectare. Though the attempts were successful, they did not give an unambigous answer to a number of professional questions. Such were e.g. : the recommended amount of water and manure ; the dates for, irrigation ; the effect of irrigation on the lastingness of fruit ; its content of sugar its taste and flavour. 114