06.01.01 General agriculture, crop production (agricultural sciences)
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06.01.01 General agriculture, crop production (agricultural sciences)
Description
In the production of seeds of sugar beet hybrids, based on cytoplasmic male sterility (CMS), we use single-fruited male sterile (MS) and ungrown fertile pollinator (Fp) plants as components of the cross. Sugar beet has a two-year development cycle. In the first year, root crops intended for growing seeds are formed, in the second year, a rosette of leaves grows from the vegetative roots of the root crop, and flowering stems grow from the generative buds. The article presents the planting method for seed production of MS of sugar beet hybrids under irrigation during summer thickened sowing. This method allows you to grow root crops-plugs with a yield factor of planting material 1: 6, 1: 7. We have also considered technological methods for growing root crops-plugs of the parent components of MS sugar beet hybrids on irrigation. The features of moisture supply and mineral nutrition systems were studied. The techniques of sowing technology and the formation of density of planting, care of crops, as well as methods for the protection, harvesting and storage of mother beets, contributing to the production of high-quality planting material, have been developed
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06.01.01 General agriculture, crop production (agricultural sciences)
Description
The work shows the effect of the Regalis preparation on the formation and biochemical composition of organs of apple tree plants (using the Gala variety as an example). Experiments were carried out in 2016-2019. Field experiments were carried out in JSC company "Agrocomplex" named after N.I. Tkachev in the Vyselkovsky district. Planting bookmark - 2007. Tree planting scheme 4.0 × 1.0 m., Irrigation - drip. The soil of the study area is ordinary chernozem (carbonate). It was found that under the action of treatments with the Regalis preparation significant changes are recorded in the structure of fouling wood and the area of the sheet apparatus. The use of a growth regulator helps to accelerate the completion of tree growth processes. This is evidenced by a decrease in the content of IAA in the tops of shoots, by 12% in comparison with the control. The “Regalis” had a significant impact on ensuring the stable fruiting of plants of the Gala apple tree. The annual one-three-time treatment of trees with this preparation in a dose of 1.25 kg / ha provided a stable increase in yield to 14.2-16.3 kg from one tree. Moreover, on average for four years, the best results were recorded in the variant with 2-fold treatment with Regalis (16.3 kg-tree). Further analysis of the yield and commercial qualities of the obtained fruits showed that two and three-fold processing contributed to the production of fruits from 38.5 to 40.8 t / ha, which is 10-11.7 t higher than the control, while increasing the yield of marketable fruits up to 13.3 - 14.0 tons
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YIELD OF WINTER BARLEY OF VOLZHSKY PERVIY VARIETY DEPENDING ON DIFFERENT SOWING RATES
06.01.01 General agriculture, crop production (agricultural sciences)
Description
The article studies the effects of different sawing rates of witer barley on crop yield. The studies were conducted on the experimental field of the Federal State Educational Institution of Higher Education in the Nizhny Novgorod State Agricultural Academy at the Novinki training experimental establishment from 2015 to 2018 on light gray forest soils. The object of research was Volzhsky Perviy variety of winter barley. We studied different sowing rates: 2, 3, 4, 5, 6, and 7 million germinating seeds per 1 hectare. The predecessor was clean fallow. On average, over 3 years of research, we observed the seeds field germination rate of 84.0-84.5%. The survival rate of plants at harvest was quite satisfactory 51.4-69.3%. We have noticed that an increase in the seeding rate from 2 to 7 million units / ha has led to a decrease in survival rate of plants by 17.9%. The highest grain yield in the experiment - 4.47 t / ha was obtained at a sowing rate of 6 million germinating seeds per 1 ha. An increase in the seeding rate from 2.0 to 7.0 million germinating seeds per 1 ha has led to an increase in the density of the productive stalk from 252 to 367 pcs / m2. The number of grains per spike in the study varied within a narrow range from 38 to 39 pieces, whereas the weight of 1000 grains varied from 32.7 to 33.8 g. We observed high spike productivity from 1.260 to 1.303 g due to the high number of grains per spike. Volzhsky Perviy variety of winter barley, showed good tillering ability when cultivated in the conditions of the Nizhny Novgorod region. The coefficient of total tillering capacity varied from 2.03 to 2.78, whereas the productive tillering capacity varied from 1.99 to 1.42
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PRODUCTIVITY OF SUGAR CORN DEPENDING ON NITROGEN FERTILIZERS
06.01.01 General agriculture, crop production (agricultural sciences)
Description
The article gives a review of the results of studying the features of the formation of sugar corn grain yield depending on the application of nitrogen mineral fertilizers used for sowing and fertilizing. The object of research was the mid-early hybrid of corn called Krasnodarsky Sakharny 280 SV (FAO 280). In the experiment, 2 factors were studied: factor Ā - sowing nitrogen fertilizer (b / ud (k), 15 and 30 kg.d.v. / ha), factor B - root nitrogen fertilizing (b / ud (k), 15 and 30 kg.dv./ha). The total area of the plot is 20 m2, the accounting area is 10 m2. The number of rows in the plot is only 4, including accounting - 2. The plots are systematically placed. In the fall, the main mineral fertilizer was applied at a dose of N30P60K60, under the main tillage - plowing to a depth of 25-27 cm. Four-fold repetition. The predecessor is winter wheat. The counts and observations in the experiment were carried out according to generally accepted methods. Studies have established that the highest yield of ears of sugar corn in milk ripeness - 14.60 and 14.71 t / ha, respectively, was obtained on options with the addition of N30 when sowing + N15 or N30 in root dressing. A further increase in the dosage of nitrogen to 60 kg.d.v./ha does not lead to an increase in yield. The highest level of profitability was obtained with the option of sowing nitrogen fertilizer at a dose of 30 kg.d.v / ha in combination with nitrogen for top dressing at a dose of 15 kg.d.v / ha (N30 + N15)
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