PEST MANAGEMENT IN POTATO GROWING ON THE BASIS OF CROP ROTATION IN THE WESTERN REGION OF THE AZERBAIJAN REPUBLIC

Use of the integrated plant protection from the modern technologies assumes a significant importance for the agricultural plants productivity increase. Our researches were dedicated to the integrated fight measures for the soil fertility preservation, productivity growth, vermin density reduction in potato sowings of the western region. During the research the various variants of the crop rotation were tested. At this time the crop rotation scheme consisting of the potato bulbs which were stocking up from potato, cabbage, onion, root crop ( radish, sugar beet and etc) in spring sowings, but leguminous (bean and etc.), vegetable (cucumber and etc.), orchard plants (water melon, melon, pumpkin and etc) in summer sowings, early plantings and previous year was tested in the fields where the potato is grown. It was determined that growing of the mean early ripening and mean late ripening potato sorts in the spring sowings, but early ripening potato sorts in the summer sowings and under western region condition and at this time use of the five-field crop rotation system are advisable. The perennial grass use is not advisable because of observing the sort structure and population density of the injurious organisms settled in the arable layer and deteriorating some physical features of the arable layer in the formed shift crop rotation depending on the sowing period (early, spring and summer). A bulky weight of the sowing layer in the field where the potato will be grown must be 0,9 - 1,2 g/cm3 . One of the following materials must be applied under plants every year: 20 tons of rotted manure, or 5 tons of tree crumb one ton of ash made from the plant remnants.