удобрения

The yield of ‘Elizabeth’ potato variety depending on weather conditions and fertilizers

Submitted by red on Mon, 11/11/2019 - 13:41

On soddy  podzolic medium  loamy soil of the Vologda region using

fertilizers in N20P20 dose while planting caused a reliable increase in potato yield of 5.4

t/hectare in comparison with control.The potato yield received when precisely calculated

doses of fertilizers were applied increased by 10.7-15.9 t/hectare (76-114%). Mineral

fertilizer system with the maximum dose of potash fertilizers and organic mineral system

differed insignificantly in their impact on the yield of tubers.Applying fertilizers both in

Productivity of winter rye grain, yield of nutritive elements by the culture when using fertilizers in the Vologda region

Submitted by red on Tue, 10/09/2019 - 09:55

The calculated fertilizer systems have significantly increased the yield of the Volkhov winter rye in grain by 52-67% and in straw - by 50-59% on the soddy podzolic medium loamy soil of the Vologda region on average for three years of research. Applying fertilizers at the rate of 1cwt/ ha in physical weight when sowing during two years out of three ones has provided a significant increase in the yield of winter rye grain. When using the calculated doses of fertilizers, phosphorus and potassium yields by a unit of production has been slightly below the planned values.

Аgronomical assessment of efficiency of introducing various fertilizer doses for the crop rotation cultures

Submitted by red on Tue, 10/09/2019 - 09:47

On the sod-podzolic medium-loamy soil of the Vologda region, the calculated fertilizer systems have increased productivity by 30-94% on average for 3 years of the research compared to the no-fertilizer option, by 33 - 49% compared to the sowing fertilizer (for cereals and annual crops and applying fertilizer when planting for potatoes). The use of fertilizers provided a high cost of 1kg of active material by productivity gains of all studied crops, and for the research years there has been the highest cost - 23 kg of fodder units. The calculated doses of fertilizers have differed in cost.

The effect of fertilizers on the vital functions of spruce in a blueberry spruce forest

Submitted by red on Wed, 25/04/2018 - 13:53

The effect of fertilizers on physiological processes intensity and spruce growth in a 120 year-old blueberry spruce forest of the IVth quality grade has been studied. The study describes the change in the root respiration intensity, photosynthesis, transpiration, concentration of photosynthetic pigments, moisture content of spruce needles and their biometric parameters under the influence of mineral fertilizers (urea, double superphosphate and potassium chloride).

Improving Water Management: problems and prospects

Submitted by red on Wed, 27/12/2017 - 13:09

The dynamics of water use indices in the Russian Federation and in the Vologda Region has been evaluated in the article. The dimensionless water use efficiency indices have been suggested. Small applicability of the best available technologies, high energy intensity of waste and natural water clarification, inappropriate disposal of wastewater sludge, high water tariffs in the countryside can be considered as the main problems of water use in the Vologda region. Using wastewater sludge as fertilizer is the most rational method of its disposal.

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