Authors:
Yu. A. KUZYCHENKO, doctor of agricultural sciences, associate professor, leading researcher,
North-Caucasian Federal Scientific Agrarian Center (49 Nikonov str., 356241, Mikhailovsk, Shpakovsky district, Stavropol Territory; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.).
Abstract. The article presents the results of studies on the evaluation of technologically favorable conditions for the expanded introduction of the links of the spiked crops with the occupied steam in the Stavropol Territory. The following criteria were decisive: agrarian landscape approach taking into account the presence of certain soil and climatic conditions in cropping areas in the form of annual rainfall, the sum of temperatures, soil humus content and mineral nutrition elements, and morphological features of the soil cover; The need to increase the production of green fodder in connection with the development of livestock. An analysis of the changes in areas occupied by occupied pairs in different soil and climatic zones showed that a significant increase in the vapor area was established only in the zone of unstable moistening (SCC 1.0–1.1) with an annual increase in the vapor area by 1.8 thousand hectares, This is marked by an intensive decrease in areas in the 2nd arid and 4th zone of sufficient moisture (by 5 and 3.4 thousand hectares, respectively), with practically unchanged area occupied by fumes in the 1st extremely arid zone. Analysis of the annual amount of precipitation over the last 10 summer periods has shown that, on average, the annual rainfall decreases only in the extremely arid zone (22.7 mm), while an increase in precipitation in the arid zone by 24 mm is established, in the zone of unstable moisture 20.7 mm, and in the zone of sufficient moistening by 27 mm, which indicates the possibility of expanding the area for occupied pairs. Calculations have been made based on the generalized criterion D of the evaluation of the agrotechnical potential for expanding the areas under occupied pairs, taking into account: the annual amount of precipitation at the survey points of the territory of the province (mm), humus reserves (t / ha), mobile phosphorus content (mg / kg), granulometric composition content of physical clay, %). The zone of limited technological possibilities (D < 0.8) with winter wheat cultivation according to pure pairs, zones of acceptable and satisfactory conditions (D = 0.8–0.86 and D = 0.86–0.93 respectively) with a maximum the increase in the share of occupied fumes and the zone of favorable conditions (D > 0.93), where along with the cultivation of grain crops on a wide range of predecessors, the main attention should be paid to cultivating tilled crops.
Keywords: busy steam, introduction zone, Central Ciscaucasia.
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