Abstract
For the natural and climatic conditions of the Shebalino subzone of the mid-mountain zone of the Republic of Altai, the most productive mowing varieties of Pisum sativum L. and Pisum arvense L.were selected for forage production from 2017 through 2019. The varieties of Pisum arvense L.Kormovaya 50 and Novosibirskaya 1 were the tallest ones (139-148 cm); among Pisum sativum L.varieties -Altayskiy universalniy (124 cm). The varieties Avans (Pisum sativum L.) and Kormovaya 50 (Pisum arvense L.)were the most resistant to lodging (3.6 score points). The following varie-ties reached the largest herbage yields as compared to the control variety Avans (18.0 t ha): Pisum sativum L.Altayskiy universalniy (+8.29 t ha); Pisum arvense L.varie-tiesKormovaya 50 (+7.58 t ha), Nikolka (+7.96 t ha) and Novosibirskaya 1 (+8.23 t ha). Regarding dry matter yield, these varieties exceeded the control by 0.18-1.92 t ha. The varieties ofPisum arvense L.Nikolka and Novosibirskaya 1 had a high level of digestible protein per fodder unit (157-171 g) while the other varieties had this value in the range of 138-148 g. The hay yield of commercial mixed crops in 2020 was as following: oat variety Argument + Pisum sa-tivum L.Altayskiy universalniy (70% × 30%) -5.48 t ha; digestible protein per fodder unit-111 g; oat variety Argu-ment + Pisum arvense L.varietyKormovaya 50 -5.86 t ha and 116 g, respectively. Mixed crops of oats with these varieties of Pisum sativum L. and Pisum arvense L.allow obtaining protein-balanced forages.
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