Comparative productivity evaluation of meadow clover (trifolium pratense l.) different varieties in the Vologda region
It was found that the highest hay yield compared to the standard Trio
variety was observed in the Taezhnik variety (105.3 C/ha) in the conditions of the
Vologda region on sod-podzolic medium loamy soil for 2017-2019. The variety to
control provided a significant increase in yield of 15.9 C / ha (18%). The Allure variety
showed a significantly lower yield compared to the standard (17 C / ha, i.e.19%). The
rest of the studied Ranniy-2 and Roseta varieties provided the yield at the standard
level. The tested varieties of meadow clover showed good and almost excellent winter
hardiness which is 4-4.7 points. The content of “raw” protein exceeded the control
grade of Ranniy-2 (by 1.2%), Taezhnik (by 0.9%), Allure (by 0.5%). For the collection
of “raw” protein with a yield of green mass, the Allure and Roseta varieties were inferior
to the standard by 153 and 11 kg / ha. Ranniy- 2 and Taezhnik varieties provided the
collection of “raw” protein with a green mass yield of 1155 and 1245 kg/ha, respectively,
exceeding the standard by 173 and 263 kg / ha. The average and large correlation of
such indicators as the yield of clover varieties and plant height from r = 0.551 to r =
0.743 was revealed. A weak relationship was established between such indicators as
leafiness and yield (r = 0.434 – 0.525), yield and protein content (r = 0.451), protein
content in the green mass and plant leafiness (r = 0.448).
Comparative productivity evaluation of meadow clover (trifolium pratense l.) different varieties in the Vologda region
It was found that the highest hay yield compared to the standard Trio
variety was observed in the Taezhnik variety (105.3 C/ha) in the conditions of the
Vologda region on sod-podzolic medium loamy soil for 2017-2019. The variety to
control provided a significant increase in yield of 15.9 C / ha (18%). The Allure variety
showed a significantly lower yield compared to the standard (17 C / ha, i.e.19%). The
rest of the studied Ranniy-2 and Roseta varieties provided the yield at the standard
level. The tested varieties of meadow clover showed good and almost excellent winter
hardiness which is 4-4.7 points. The content of “raw” protein exceeded the control
grade of Ranniy-2 (by 1.2%), Taezhnik (by 0.9%), Allure (by 0.5%). For the collection
of “raw” protein with a yield of green mass, the Allure and Roseta varieties were inferior
to the standard by 153 and 11 kg / ha. Ranniy- 2 and Taezhnik varieties provided the
collection of “raw” protein with a green mass yield of 1155 and 1245 kg/ha, respectively,
exceeding the standard by 173 and 263 kg / ha. The average and large correlation of
such indicators as the yield of clover varieties and plant height from r = 0.551 to r =
0.743 was revealed. A weak relationship was established between such indicators as
leafiness and yield (r = 0.434 – 0.525), yield and protein content (r = 0.451), protein
content in the green mass and plant leafiness (r = 0.448).
The yield of ‘Elizabeth’ potato variety depending on weather conditions and fertilizers
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
minimum and precisely calculated doses increased the productivity of by-products by
41-123% in comparison with control. Applying mineral doses of fertilizers reduced the
starch content in comparison with control by 0.1-0.2% in absolute value. Precisely
calculated systems of fertilizers increased the nitrates content in comparison with
applying fertilizers only while planting (N20P20) by 36-51%. The nitrates content in
potato tubers in applying precisely calculated systems of fertilizers was about 70-78% of
maximum allowable concentration. The yield of tubers and vegetable tops substantially
depended on weather and agrotechnical conditions, by 33 and 35% respectively, mostly
on fertilizers - by 60%.
The yield of ‘Elizabeth’ potato variety depending on weather conditions and fertilizers
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
minimum and precisely calculated doses increased the productivity of by-products by
41-123% in comparison with control. Applying mineral doses of fertilizers reduced the
starch content in comparison with control by 0.1-0.2% in absolute value. Precisely
calculated systems of fertilizers increased the nitrates content in comparison with
applying fertilizers only while planting (N20P20) by 36-51%. The nitrates content in
potato tubers in applying precisely calculated systems of fertilizers was about 70-78% of
maximum allowable concentration. The yield of tubers and vegetable tops substantially
depended on weather and agrotechnical conditions, by 33 and 35% respectively, mostly
on fertilizers - by 60%.
Productivity of winter rye grain, yield of nutritive elements by the culture when using fertilizers in the Vologda region
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. When using the calculated doses of fertilizers, nitrogen and potassium yields have increased by 5-6 kg (20-24%) and 3-7 kg (17-39%) compared to the control, respectively.
Productivity of winter rye grain, yield of nutritive elements by the culture when using fertilizers in the Vologda region
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. When using the calculated doses of fertilizers, nitrogen and potassium yields have increased by 5-6 kg (20-24%) and 3-7 kg (17-39%) compared to the control, respectively.
Аgronomical assessment of efficiency of introducing various fertilizer doses for the crop rotation cultures
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 organic and mineral system of fertilizer with saturation of 270 kg d. century per 1 hectare has accounted for the highest payment, and at the level of mineral systems with saturation in 294kg of active material per ha. The cost upon the estimated doses of fertilizers has amounted to 8.8 to 10.9 kg of fodder units per 1kg of active material.
Аgronomical assessment of efficiency of introducing various fertilizer doses for the crop rotation cultures
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 organic and mineral system of fertilizer with saturation of 270 kg d. century per 1 hectare has accounted for the highest payment, and at the level of mineral systems with saturation in 294kg of active material per ha. The cost upon the estimated doses of fertilizers has amounted to 8.8 to 10.9 kg of fodder units per 1kg of active material.
The effect of adding perennial grasses of the second mowing to the flattened spring barley grain for its storage in air-tight conditions
The article presents the results of studying the addition of green mass of grass to the flattened spring barley grain. Finely chopped grass is an effective means of accelerating the creation of anaerobic conditions in the grain mass and reducing the loss of dry matter during storage. It was revealed that as a result of the addition of grass, the period of creating oxygen-free conditions had been reduced to two or three days, the loss of dry matter during this time had not exceeded 1.5-2.5%. The optimal dose of grass has been 3% of the grain weight. Dry matter losses at this dose amounted to 4.8% for the period of 30 days of storage, in the mass of grain without grass the losses reached 11.3%.
Flax productivity in seven-field crop rotation on sod-podzolic light loamy soil by using fertilizers and biopreparation
New experimental data have been obtained in the stationary multi-year field experiment on sod-podzolic light loamy soil in 2016-2017. Actual yields of flax straw and seeds of «Levit 1» flax variety in 7-fields system with different levels of fertilizer doses are calculated using balance coefficients in «Mizorin» biological preparation application and without it. The influence of the mineral nutrition level and biological preparation on the indicators is studied, such as: the number of plants per 1 m2 before harvesting, the total and technical length of stems, the thickness of stems, the average number of fruitcases per plant, the average number of seeds in 1 fruitcase, the mass of 1000 seeds.
The productivity of winter rye on sod-podzolic light loamy soil by using fertilizers and a microbiological preparation
The results of field research conducted on soddy-podzolic light loam soil in the Vologda region established that the use of fertilizers significantly increased the yield of winter rye grain both against the background of the flavobacterin biofungicide and without its use. Depending on the doses of fertilizers and bacterialization with a microbiological preparation, the productivity of straw of winter rye naturally increased, the content of nitrogen, phosphorus, potassium in the production increased, the collection of crude protein by grain and the productivity in feed units increased.
