Connectivity of change in yield of grain and leguminous crops and level of application of fertilisers by district of the Republic of Belarus

N. Klebanovich, A. L. Kindeev
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Abstract

The article discusses territorial and structural changes in the productivity of grain and leguminous crops in the districts of the Republic of Belarus, as well as differences in the doses of mineral fertilisers for certain types from 2014 to 2018. The aim of the study is to determine the degree of influence of fertilisers on the dynamics of productivity for the studied period and to analyse the reasons for changes in the level of yields of grain and leguminous crops in the regions of the country. The work is based on statistical research methods – correlation and regression analysis of the relationship between mineral fertilisers and productivity were carried out. Correlation analysis showed a significant inverse linear dependence of the yield dynamics on the fertility score (correlation coefficient – 0.66), proving that more fertile soils lose in harvests of grain and leguminous crops are almost 2 times in comparison with less suitable land. Regression analysis confirmed the significant effect of mineral fertilisers (determination coefficient 56 %) on the final harvests of grain and leguminous crops. The novelty of the research lies in the mathematical formalisation of the stochastic dependence of the yield of grain and leguminous crops on the level of application of certain types of mineral fertilisers and the establishment of its linear character. With the help of GIS technologies, territorial differences in the effectiveness of the use of fertilisers for grain and leguminous crops in the administrative regions of the Republic of Belarus were established and three clusters of productivity in the country were identified – highly productive south-west (Grodno Region, Brest Region and adjacent districts of Minsk Region), productive south-east (Gomel Region and Mogilev Region with border areas of neighbouring regions) and low-productive north (Vitebsk Region with northern regions of Minsk Region and Grodno Region).
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白俄罗斯共和国粮食和豆科作物产量变化与化肥施用水平的相关性
本文讨论了白俄罗斯共和国各地区谷物和豆科作物生产力的地域和结构变化,以及2014年至2018年某些类型矿物肥料剂量的差异。这项研究的目的是确定在研究期间化肥对生产力动态的影响程度,并分析该国各地区谷物和豆科作物产量水平变化的原因。这项工作是基于统计研究方法-相关性和回归分析之间的关系,矿物肥料和生产力进行了。相关分析显示,产量动态与肥力评分呈显著的线性负相关关系(相关系数为- 0.66),证明粮食和豆科作物收成中肥力较高的土壤损失几乎是不适宜土地的2倍。回归分析证实,矿肥对粮食和豆科作物的最终收成影响显著(决定系数56%)。该研究的新颖之处在于对谷物和豆科作物的产量对某些类型的矿物肥料施用水平的随机依赖进行了数学形式化,并建立了其线性特征。在地理信息系统技术的帮助下,确定了白俄罗斯共和国行政区域谷物和豆科作物肥料使用效率的地域差异,并确定了该国的三个生产力集群- -高产的西南地区(格罗德诺地区、布列斯特地区和明斯克地区邻近地区);高产的东南部(戈梅利地区和莫吉廖夫地区与邻近地区的边境地区)和低产量的北部(维捷布斯克地区与明斯克地区和格罗德诺地区的北部地区)。
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0.00%
发文量
8
审稿时长
12 weeks
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