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).
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.
