All-Russian Research Institute of Irrigated Vegetable and Melons Growing
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USAGE OF SEEDLINGS FOR RECEIVING ULTRAEARLY HARVESTS OF POTATO
06.00.00 Agricultural sciences
DescriptionUsing of seedling method for growing early potatoes accelerates the starting processes of growth and development of plants, and the application of temporary covers of the nonwoven covering materials protects the landing from sudden temperature changes and relapsing frost. To receive seedlings of early potatoes we used standard seed tubers of 60-80 g weigh of the following varieties: Agata, Red Scarlett, Kislovodskiy, Vershininskiy and Sheri. By the time of planting in the ground, depending on the varieties, the height of seedling was from 13 to 26 cm, the number of leaves - 7-10 pieces. Conducting of trial unearthing of potato showed that on 45 days after transplanting into the ground (the second decade of May), it is possible to receive up to 10, 5-11, 4 t/ha (Agata and Red Scarlett varieties). On 55 days (the third decade of May), the yield reached 26, 4 t/ha of standard tubers, and in the first decade of June the yield was from 26, 4 to 50, 6 t/ha. The maximum yield of standard tubers of 50, 6 t/ha was obtained by lifting on 65 days with the Red Scarlett variety. In the terms of the Astrakhan region the growing of early potato by seedling method with using of temporary cover allows to receive the ultra-early harvest of marketable tubers in the II-III decade of May
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06.00.00 Agricultural sciences
DescriptionThe provisions to improve the efficiency of vineyards are the selection of varieties different by ripening, adapted to local conditions, as well as the use of a new generation of fertilizers. According to phenological observations and actual production period, the varieties of table grapes are divided into groups by ripeness – early and middle. According to the yield, there were emphasized the following varieties: in the early group – Cardinal (11,3 t/ha), Vostorg (Delight) (11,2 t/ha), Bogatyrskiy (10,9 t/ha); in the middle ripening group - Kishmish luchistyj (11,2 t/ha), Moldova (11,2 t/ha), with large clusters (266-453 g) and berries (3,2-7,0 g), a berries’ crush resistance was from average 850 g to high up to 1528 g, berries’ strength of attachment to fruitstems was high – 259 and solid – 666 g. It was observed the positive benefit of foliar application of a new generation of micro fertilizers. In the phase of ripening of berries the total length of shoots of fertilized variants was above the control variant for the variety Ranniy Magaracha on 2,6-13,4%, for the Karaburnu on 2,5-13,9%. Maturing shoots in this phase was on the variety Ranniy Magaracha – 76,5- 92,4% (control variant – 74,6%), while on the Karaburnu variety – 72,8-83,1% (control variant – 70,9%). Fertilizers contributed to the increase of leaf area on the Ranniy Magaracha variety on 3,9-15,9 thousand sq.m/ha (control variant – 20,0 thousand sq.m/ha), on the variety Karaburnu on 3,4-13,1 thousand sq.m/ha (control variant – 22,8 thousand sq.m/ha). The yielding capacity on the fertilized variants have increased by 7,1-23,0% depending on the variety. The maximum yielding capacity was obtained when using compound nanotechnological fertilizer Nagro on the variety Ranniy Magaracha – 13,4 t/ha and on the variety Karaburnu – 15,5 t/ha