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Analysis of winter wheat protection against harmful organisms in fields cultivated under intensive technology



Analysis of winter wheat protection against harmful organisms in fields cultivated under intensive technology



Problemy zashchity sel' skokhozyaistvennykh kul' tur ot vrednykjh organizmov v intensivnom zemledelii: 11-36



In a detailed study at a farm in the Krasnodon region of the Ukraine in 1985-88, normal intensive cultivation of winter wheat varieties was compared with cultivation where this technology was disrupted to the extent that soil tillage was delayed by 1.5 months, or the doses of mineral and organic fertilizers were reduced, or chemical pesticide and mineral fertilizer applications were dispensed with throughout the vegetative period, for the effect on crop growth characteristics, level of attack by different pests and diseases, and yield and economic indices. The results showed that under conditions of excess moisture the intensive use of fertilizers and pesticides reduces the endurance of the plants to damage by the sunn pest (Eurygaster integriceps), wheat stem sawfly stem moth chloropids and cereal leaf beetle and various diseases. Furthermore, comparison with results obtained in the region using intensive systems from which chemical pesticides were excluded confirmed that the yields obtained using these materials do not justify their use.

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Accession: 002301076

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