unwilling to bind themselves to kolkhozes and lose their state employee benefits and the right to change their jobs, fled to the cities, creating a shortage of skilled operators. The costs of the machinery, plus the costs of building storage sheds and fuel tanks for the equipment, impoverished many kolkhozes. Inadequate provisions were made for repair stations. Without the MTS, the market for Soviet agricultural equipment fell apart, as the kolkhozes now had neither the money nor skilled buyers to purchase new equipment. In the 1940s Stalin put Trofim Lysenko in charge of agricultural research, with his crackpot ideas that flouted modern genetics science. Lysenko maintained his influence under Khrushchev, and helped block the adoption of American techniques. In 1959, Khrushchev announced a goal of overtaking the United States in the production of milk, meat, and butter. Local officials kept Khrushchev happy with unrealistic pledges of production. These goals were met by farmers who slaughtered their breeding herds and by purchasing meat at state stores, then reselling it back to the government, artificially increasing recorded production. In June 1962, food prices were raised, particularly on meat and butter, by 25–30%. This caused public discontent. In the southern Russian city of Novocherkassk (Rostov Region), this discontent escalated to a strike and a revolt against the authorities. The revolt was put down by the military. According to Soviet official accounts, 22 people were killed and 87 wounded. In addition, 116 demonstrators were convicted of involvement and seven of them executed. Information about the revolt was completely suppressed in the USSR, but spread through Samizdat and damaged Khrushchev's reputation in the West. Drought struck the Soviet Union in 1963; the harvest of of grain was down from a peak of in 1958. The shortages resulted in bread lines, a fact at first kept from Khrushchev. Reluctant to purchase food in the West, but faced with the alternative of widespread hunger, Khrushchev exhausted the nation's hard currency reserves and expended part of its gold stockpile in the purchase of grain and other foodstuffs. Agricultural labour Stalin's campaign of forced collectivization relied on a hukou system to keep farmers tied to the land. The collectivization was a major factor explaining the sector's poor performance. It has been referred to as a form of "neo-serfdom", in which the Communist bureaucracy replaced the former landowners. In the new state and collective farms, outside directives failed to take