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.