保护地蔬菜病虫害发生特点及其综合防治

根据保护地蔬菜病虫害发生特点,掌握综合防治方法,把病虫为害损失控制在经济允许水平之下,达到优质、高产、低成本和农产品无污染的目的。     

公共财政投入与农村公共物品供给

农村公共物品的供给对新农村建设、消除＂二元结构＂和城乡统筹发展具有重大意义.长期以来,＂二元＂经济社会结构导致城乡分割,公共财政未能覆盖农村,造成我国农村公共物品供给总量不足,供给结构不合理,严重制约了社会发展.文章对农村公共物品的界定及特征,目前我国农村公共物品供给和公共财政投入的现状及存在的问题进行了分析,并提出了公共财政投入农村公共物品的对策建议.     

西南烟区烤烟主要多酚含量的比较分析

 为了掌握西南烟草种植区烤烟中主要多酚化合物含量的差异,采用高效液相色谱法测定了该烟区364个陈化烤烟样品中主要多酚化合物的含量,并对检测结果进行了统计分析。结果表明：(1)四川烤烟中的绿原酸和多酚总量最高,云南烤烟中的绿原酸含量最低,贵州烤烟中的芸香苷含量最低;(2)绿原酸和多酚总量在四川上、中、下部烟叶中含量均显著高于云南烟区相应部位的烟叶（P<0.05）;(3)相同年份烟叶中绿原酸和多酚总量四川要普遍高于云南;(4)云南烤烟C3F中的绿原酸和多酚总量要明显低于四川烤烟C3F。     

浙江欠发达地区现代农业服务业发展中存在的问题与对策

现代农业服务业在发展农业经济、促进农业增效和农民增收等方面具有无可替代的特殊意义.文章提出了现代农业服务业的内涵并以浙江丽水市为例,对浙江省欠发达地区现代农业服务业发展进行了研究,发现欠发达地区现代农业服务业内部结构不平衡、投入机制不完善、组织激励机制不健全等诸多问题.对存在问题进行深入分析的基础上,提出完善多元农技服务体系等方面的对策建议,为欠发达地区又好又快地发展现代农业服务业提供有益借鉴.     

“明椒5号”中高海拔山区高产栽培技术

明椒5号属早中熟辣椒杂交种,具有产量高、辣味强、香味浓郁、病虫危害较轻等特点。为了让该新品种得以推广和应用,该文总结了明椒5号的特征特性及其在福建省中高海拔山区的栽培技术。     

新农村体育文化发展面临问题研究

农村经济的发展和社会进步要求相应发展农村体育文化,但在当前新农村体育文化发展却面临着这样或那样的问题。本文对新农村体育文化发展面临问题进行了阐述,同时也提出了本人舍理化建议,旨在为推进农村体育文化建设提供参考。     

Variability in Soil Hydraulic Conductivity and Soil Hydrological Response Under Different Land Covers in the Mountainous Area of the Heihe River Watershed,Northwest China

Understanding the variability in soil hydraulic conductivity in the mountainous headwaters is critical to the modeling of mountainous runoff and the water resources management of river basins, especially in the arid and semiarid areas. In this study, a total of 32 soil profiles with five layers within 0–70 cm were sampled under different land cover types: forest, meadow, high coverage grassland (HCG), medium coverage grassland (MCG), and barren land in the upper stream of the Heihe river watershed, Northwest China. Saturated hydraulic conductivity (K _S) was measured for each sample. The vertical variation of K _S and soil hydrological response under different land covers were analyzed. Results show that K _S value in layer 5 was significantly lower than the values of above four layers. K _S decreased in the order of forest, meadow, HCG, MCG, and barren land, corresponding to the degree of vegetation degradation. The K _S decreased with depth under forest, HCG, and barren land, but increased first and then decreased under meadow and MCG. The dominant stormflow paths for different land covers were different: forest was dominated by deep percolation, HCG was dominated by subsurface flow (SSF), meadow was prevailed by Hortonian overland flow and had no SSF, while MCG and barren land were also dominated by Hortonian overland flow, but still formed SSF. This result provides important information for improving the accuracy of mountainous hydrological modeling and, in turn, leading to sustainable management of water resources in the study watershed. Copyright © 2016 John Wiley & Sons, Ltd.     

弥渡县农业机械化发展之浅析

改革开放以来,农业机械化的快速发展,为促进大理州弥渡县农业和农村经济持续、快速发展,保证农业收入的稳步增长,加快农业现代化建设的步伐起到了积极的作用.目前,随着农村和农业产业结构的不断调整,弥渡县农业机械化的发展将面临新的机遇和挑战.结合弥渡县农业生产的特点、自然资源以及经济基础,对弥渡县农业机械化的现状、存在问题及今后发展方向作一些初浅探讨.     

我国山区草地资源人口容量分析

结合国家草地建设规划，在对我国山区草地资源发展潜力分析的基础上，对其人口容量进行了分析与预测，为制定山区发展战略提供参考。     

构建和谐中原的贫困地区发展战略研究

结合河南贫困地区现状及其发展中存在的问题，提出加快河南贫困地区发展的途径。