Processing of potato tubers insectofungicides and tank mixture insecticide with fungicide

A comparative analysis of the results of studies on the impact of ways pre–plant tubers insects fungicides Prestige and the tank–mix Kruyzer insecticide, fungicide Maxim, on productivity and other indicators harvest tubers of potato varieties Udacha, Nevsky, and Chayka. The vegetation period of 2013–2014. Experiments were laid on sod medium loam soil in the experimental rotation. Predecessors — spring cereals. The main and preplant tillage, potato planting was carried out on the ridge in wide–band technology of cultivation in the modification of the Udmurt Agricultural Research Institute. Sort Chayka in the average yield variants of the experiment formed at the level of 37.4 t / ha, which was significantly higher than the value of this index in young (Udacha) and Medium early (Nevsky) of varieties of 3.3 and 6.1 t / ha, respectively. Pre–treatment of tubers insect–fungicides Prestige and tank mixtures insecticide Kruyzer with the fungicide Maxim ensured the substantial growth in productivity on 5,9–6,3 t / ha, compared with without processing option. This was due to the formation of a larger number of tubers under a bush (13 pieces) and the larger mass of tubers with a bush, which increased on average by grades as compared to treatment with water (0.599 kg), at 0,084–0,125 kg. High productivity observed for all studied varieties when used for the treatment of chemical means of protection of tubers — Udacha (36,2–36,8 t / ha), Nevsky (32,8–33,2 t / ha), Chayka (39,3– 39.4 t / ha). However, cost–efficiency and profitability (263.3%) were the use of the drug Prestige