Formation of Legume-Cereal and Cereal Herbage Based on Festulolium Depending on the Nitrogen Nutrition Regime in the Leningrad Region
| Autor: | T V Stepanova, A A Filippov, K A Ambartsumova, A G Orlova, A B Nikulin |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | IOP Conference Series: Earth and Environmental Science. 852:012102 |
| ISSN: | 1755-1315 1755-1307 |
| DOI: | 10.1088/1755-1315/852/1/012102 |
| Popis: | Studies of the formation of single-species cereal and binary legume-cereal herbage with the participation of festulolium were carried out in 2014-2017 on the experimental field of the St. Petersburg State Agrarian University. Density of standing of festulolium shoots was maximum in the first year of herbage use. In subsequent years, there was a decrease in shoot formation, which indicates its fragility. The percentage of festulolium both in single-species crops and in binary mixtures was high during the first year of use–90.9–96.6% and 65.4–77.9%, respectively. In subsequent years, a decrease in the participation of festulolium in the harvest and a simultaneous increase in the content of seeded legumes were noted. Under the conditions of the Leningrad region, with the intensive use of herbage, single-species crops of festulolium provided the minimum yield of dry matter. Growing festulolium in a mixture with legumes has increased yields. The maximum yield was provided by a two-component herbage with meadow clover–12.5 and 13.8 t/ha. The use of nitrogen fertilizers at a dose of N60 increased the yield of all the studied mixtures. |
| Databáze: | OpenAIRE |
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