Abstract

The effect of mineral fertilizers and a growth biological stimulant on the development and fruiting of the species Robinia pseudoacacia (Robinia pseudoacacia L.) is analyzed. The introduction of robinia into plantations of various types has been performed from 1904 to the present time. It has been revealed that this North American species successfully grows and develops under arid conditions of Volgograd oblast, is adapted to local soil and climatic conditions, and is stable. Observations were performed in the Kirov Forestry of Volgograd oblast and in the production nursery of the Federal State Unitary Enterprise Volgogradskoe of the Federal Scientific Center for Agroecology, Complex Melioration, and Protective Afforestation of the Russian Academy of Sciences. The studies enabled us to determine the effect of treatment with preparations Biostim and Agrovit on reproductive ability, biometric parameters of young and mature robinia plants, and germination of seeds. Seeds of Robinia pseudoacacia are needed for 2633 ha in Volgograd oblast and for 192 ha in the semi-desert zone. The need for seeds for the entire area of protective forest plantations in Astrakhan oblast and the Republic of Kalmykia is 333 and 2594 kg, respectively. The testing of the Biostim Start growth biostimulant has shown that it optimal treatment rate for robinia seeds is 15 mL/L. A higher rate causes a decrease in vitality and mold development on seeds. The use of the Agrovit preparation causes an increase in the growth and diameter of trees in 10-year-old plantations. Application of the preparation in combination with mineral fertilizers causes a growth to 40 cm of young frost-tolerant plants and to 60 cm of tall trees. The crown diameter of frost-tolerant plants increases to 6.2 cm. The research results show the possibility of sowing robinia seeds at the rate of 2 kg/ha and at a distance of 2.5 m between rows with the use of Agrovit fertilizer.

中文翻译：

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土地退化和荒漠化条件下保护性造林刺槐繁殖技术要点

摘要

矿物肥料和生长生物刺激剂对刺槐（刺槐）的发育和结果的影响L.) 进行了分析。从 1904 年至今，刺槐已被引入各种类型的种植园。据透露，该北美品种在伏尔加格勒州干旱条件下成功生长发育，适应当地土壤和气候条件，稳定生长。观察是在伏尔加格勒州基洛夫林业和俄罗斯科学院农业生态、复合改良和保护性造林联邦科学中心伏尔加格勒联邦国家单一企业的生产苗圃进行的。这些研究使我们能够确定 Biostim 和 Agrovit 制剂处理对年轻和成熟刺槐植物的繁殖能力、生物特征参数以及种子发芽的影响。的种子刺槐伏尔加格勒州需要 2633 公顷，半沙漠地区需要 192 公顷。阿斯特拉罕州和卡尔梅克共和国整个防护林种植园的种子需求分别为 333 公斤和 2594 公斤。Biostim Start 生长生物刺激素的测试表明，它对刺槐种子的最佳处理率为 15 mL/L。较高的速率会导致种子活力下降和霉菌发育。使用 Agrovit 制剂可增加 10 年树龄种植园树木的生长和直径。该制剂与矿物肥料结合使用可使耐霜冻的幼苗长到 40 厘米，高大的树木长到 60 厘米。耐霜植物的冠径增加到6.2厘米。