This paper briefly outlines the situation of the introduction and popularization of space bananas in Meizhou, Guangdong Province, and summarizes the key points of cultivation management and the prevention and control techniques of the disease and insect pests for bananas, aiming to optimize the planting layout of the banana industry and guarantee the diverse supply of agricultural products in Meizhou.
Based on the field investigation and tail water sampling of PH value, suspended matter concentration, total phosphorus, total nitrogen and potassium permanganate index in the water samples in 10 towns and 100 sampling site for some pond farmers in the Cuiping district, the results show that both suspended matter concentration and potassium permanganate index reach?The Discharge Standard of Freshwater Pond Aquaculture Water?（SC/T9101-2007）. The proportion of the pH value, total phosphorus, total nitrogen that reach the discharge standard are 99%, 95% and 91% respectively in the water sample. Summarizing the existing tail water processing mode, aiming to formulate a scientific and effective disposal scheme for farmers in Cuiping district, and to promote the green, ecological and healthy development of the aquaculture industry in the Cuiping district.
Precise fertilization management is an prominent measure to ensure the high yield and high efficiency of maize breeding in the Nanfan maize breeding base. And scientific management zoning is an essential prerequisite for the implementation of precise fertilization. This paper takes the typical plot of maize in Nanfan as the research object. based on soil pH, bulk density, organic matter, available nitrogen, available phosphorus, available potassium and other soil properties. Using traditional statistics, principal component analysis and fuzzy C-means classification and other methods to study the management zoning of the research area. The results indicate that the soil in the study area is from strongly acidic to slightly acidic, the soil is overly compact and the soil structure is poor. The content of soil organic matter, available nitrogen and available potassium are at a medium level, while the content of available phosphorus is at a high level.The variational coefficient of the pH value and bulk density is less than 10%, which belongs to weak variation, and other soil properties belong to moderate variation intensity. The spatial distribution of soil attributes was very different. After dimensionality reduction by principal component analysis, soil attributes could be divided into three principal components as the basis for zoning.According to fuzzy C-means clustering analysis, the optimal number of management zones was 4, and soil properties showed significant differences among management zones, and the coefficient of variation of soil properties in each management zone decreased compared with that before zoning（the whole study area）. The overall results demonstrate that the different soil properties can be utilized to determine the management zoning of Nanfan maize breeding plots by the fuzzy C-means classification method.
调查小陇山黑虎林区海拔2 100～2 800 m木本植物,分析叶碳氮磷计量比以及比叶面积(SLA)、叶干物质含量(LDMC)、叶碳含量(TCC)、叶氮含量(TNC)、叶磷含量(TPC)5个叶片功能性状,探讨叶性状随环境变化的驱动因子.结果发现,木本植物变异系数大小顺序为SLA＞TPC＞LDMC＞TNC＞TCC,叶性状随海拔、坡向、土壤全磷含量增加呈升高趋势;随土壤全氮含量增加呈减少趋势.RDA分析表明,不同环境因子解释了41.52%的变异,其中海拔、坡向、坡位、土壤有机碳、全磷解释了27.20%的变异;土壤全氮、坡度解释了15.61%的变异.
易地扶贫搬迁是利通区重要的扶贫模式之一,是当地政府集中力量帮助搬迁群众摆脱贫困,走向富裕的真实写照.要使搬迁移民实现"留得住""能致富",搬迁后的就业帮扶显得尤为重要.通过实地调研和查阅各级政府网站等收集到大量相关材料,总结利通区易地扶贫搬迁移民就业帮扶取得的成效,分析在就业帮扶过程中存在就业信息提供不充分、就业技能培训效果不佳等问题,在此基础上提出对策建议.
