共查询到20条相似文献,搜索用时 375 毫秒
1.
宁南山区马铃薯贮藏中存在的问题及对策 总被引:1,自引:0,他引:1
<正>马铃薯是宁南山区最具特色的区域优势作物,近年来在政府部门的大力支持下,种植规模逐渐扩大,总产量也大幅上升,与此同时马铃薯的冬贮问题也日趋突出。由于宁南山区受经济条件的制约,使得山区农户贮藏设施、贮藏方法、管理技术等方面存在着许多缺点和问题。因此,我们要大力提倡 相似文献
2.
宁夏马铃薯产业的发展现状、问题与对策 总被引:1,自引:0,他引:1
1 前 言 马铃薯是宁南山区乃至宁夏全区的主要高效优势作物,开发马铃薯产业对加快发展当地农业产业化具有龙头带动作用,进而将推动地方区域经济的发展。农业产业化体系包括种植业生产→商品加工→市场营销三个主要环节,其发展不仅依赖于农业资源条件,还涉及到农村经济基础、社会发展背景等影响产业发展能力的诸多因素。本文围绕宁夏马铃薯产业开发,全面阐述了马铃薯产业发展的有利条件和现状,分析了存在的主要问题及制约因素,提出了设想与对策,以为进一步加快发展宁夏的马铃薯产业提供参考。2 发展现状2.1 生产种植 宁南山区历… 相似文献
3.
4.
西吉县马铃薯产业化现状、问题及对策 总被引:2,自引:0,他引:2
马铃薯是西吉县乃至宁南山区的主要优势作物之一,也是最有发展前途的十大营养健康食品之一.近年来,西吉县为充分发挥其生产和加工优势,大力推进农业科技进步,加快调整优化农业结构和马铃薯产业化发展,已探索出一条以优势资源带动优势企业,以优势企业带动优势产业,以优势产业带动区域经济发展的新路子,进一步拓宽了马铃薯的生产发展空间,拉长了马铃薯生产和加工经济链条.以马铃薯系列开发为主的带动型产业已成为西吉县农业增产、农民增收的主要产业,所以大力发展马铃薯产业化对西吉县农业经济的发展有着十分重要的意义.为此,全面、深入地调查了西吉县马铃薯产业开发的现状、存在的问题,并提出了发展马铃薯产业的建议和对策,为合理开发马铃薯产业提供参考. 相似文献
5.
6.
马铃薯晚疫病流行程度的灰色预测初探 总被引:2,自引:0,他引:2
马铃薯晚疫病流行程度的灰色预测初探谢成君,宋杰(宁夏西吉县农技中心756200)1前言马铃薯晚疫病(Phytophtorainfetans)是宁南山区马铃薯生产上的一大病害。曾在1950.1954、1958、1964、1992年出现大流行,严重影响了... 相似文献
7.
8.
伴随着农村产业结构调整步代的加快,马铃薯以其耐瘠抗灾,高产稳产,粮菜兼用,营养丰富且产业链条长的优势,近10年来在宁南山区呈现跳跃式发展趋势.生产面积稳步增加,加工工艺不断改进,销售网络逐步拓展,形成了多渠道、多层面的产业格局.在生产面积、总产量、商品率、经济收入等方面担当起一个重要的支柱产业,为宁南山区经济发展、农民增收发挥着极其重要的作用.为使马铃薯产业在本地区乃西北地区得到有效的发展,现根据该地区马铃薯生产的优势条件、存在的问题,提出发展对策,供商讨. 相似文献
9.
宁南半干旱区马铃薯增产的耕作栽培体系探讨刘东海(宁夏西吉县农业局756200)马铃薯是宁夏南部半干旱山区主要的优势特种经济作物之一,素有"救命蛋"、"宝贝蛋"之称。在同等条件下,马铃薯单产高于小麦和豌豆等其它作物(按5kg薯块折主粮1kg相比较)。但... 相似文献
10.
11.
针对豫北地区的大豆生产现状,从气候、土壤、品种、生态因素及市场需求等方面提出了优质大豆的发展策略与途径。 相似文献
12.
Irrigation of Netted Gem potatoes was scheduled during three growing seasons by three methods: (a) when plants displayed first visual symptoms of moisture stress, (b) when indicated by a soil moisture budget involving estimated evapotranspiration, and (c) on the basis of tensiometer readings of soil moisture suction. When the tensiometer method of scheduling was used, the mean yields of tubers were 55.0 and 25.8 cwt/acre (6160 and 2890 kg/ha) higher than those obtained with the other two scheduling methods. Methods did not affect the specific gravity of potatoes. Method (a) scheduled irrigations least frequently. Scheduling by the budget method was not always adequate because it was based on the assumption that the crop extracted water from a constant 4 ft (1.2 m) profile from planting to full vegetative growth. In one year the budget method scheduled the first irrigation earlier than necessary and delayed the second irrigation during a critical period of crop growth. From full vegetative cover to harvest the irrigation schedules were alike for both the budget and tensiometer methods. 相似文献
13.
1 吉林省平安农业科学院大豆研究工作简介吉林省平安农业科学院大豆研究所 ,设在吉林省长春市西安大路种子大厦内。现有科技人员 6人 ,其中研究员 2人 ,农艺师 2人 ,技术员 2人 ,定向培养研究生 2人。大豆研究所的主要任务是选育稳产、高产、优质及抗病虫大豆新品种 ;同时密切 相似文献
14.
以长沙县高桥相同嫩度茶鲜叶原料采用卷曲形毛尖茶加工工艺制绿茶为对照,分别对沅陵县齐眉翠峰、凤娇碣滩茶、干发茶和军大坪茶4种绿茶的主要生化成分与感官品质进行初步分析。结果表明,沅陵4种绿茶的茶多酚总量28.76%~30.34%,游离氨基酸总量2.35%~3.22%,咖啡碱含量3.00%~3.63%,水浸出物含量37.26%~40.07%,可溶性糖总量5.46%~5.65%,可溶性蛋白含量1.50%~1.74%,类黄酮化合物总量1.16%~1.79%,叶绿素总量1.36%~2.01%,儿茶素总量13.53%~16.20%。与对照相比,4种绿茶的茶多酚、可溶性糖和儿茶素总量均高于对照,除齐眉翠峰外其余3种茶样水浸出物和叶绿素总量均高于对照,除干发茶外其余3种茶样类黄酮化合物总量均高于对照。 相似文献
15.
16.
Sena L.P. VanderJagt D.J. Rivera C. Tsin A.T.C. Muhamadu I. Mahamadou O. Millson M. Pastuszyn A. Glew R.H. 《Plant foods for human nutrition (Dordrecht, Netherlands)》1998,52(1):17-30
In the western Sahel, indigenous plants become important staples when cereal harvests are inadequate to support populations inhabiting that region of Africa. The purpose of this study was to assess the nutrient content of several of these edible wild plants. The leaves of the following seven plant foods were analyzed: Ziziphus mauritiana, Cerathotheca sesamoides, Moringa oleifera, Leptadenia hastata, Hibiscus sabdarifa, Amaranthus viridi, and Adansonia digitata. The fatty acid, vitamin E, carotenoid, selected mineral and amino acid contents of these plant foods were determined. These same analyses were performed on the fruit of the Adansonia digitata. In quantitative and qualitative terms, Amaranthus viridis was found to be an excellent source of protein. Its amino acid composition compared favorably to that of a World Health Organization (WHO) protein standard. It also contained considerable amounts of the two fatty acids that are essential in humans (linoleic and -linolenic) and a number of minerals including iron, magnesium, calcium and zinc. The leaves of Hibiscus sabdarifa contained an appreciable quantity of protein the composition of which was comparable to the WHO standard. The mineral content of the leaves of this plant was also exceptionally high; noteworthy was its high zinc content. H. sabdarifa also contained significant quantities of the two essential fatty acids. Ziziphus mauritiana was an excellent source of the essential fatty acid linoleic acid and several of the metals including iron, calcium, magnesium and zinc. Its content of other essential nutrients, however, was rather low. In general, Adansonia digitata leaves were nutritionally superior to the fruit of the tree; however, the fruit did contain useful quantities of potassium, phosphorus, zinc and -linolenic acid. The Leptadenia hastata leaves were an especially good source of lutein and -carotene. These data should be useful to the people who inhabit the western Sahel in helping them devise healthy diets during times when cereal staples are in short supply. 相似文献
17.
18.
通过电解质外渗法和匍匐茎恢复试验对‘阳江’狗牙根及其12个通过形态鉴定选出的坪用价值高且花序密度低的诱变后代进行抗寒性鉴定。电解质外渗法结果表明:诱变后代间的抗寒性具有较大差异,其叶片半致死温度(LT50)的变异范围为-7.6~-0.2℃(最低值与最大值相差7.4℃);参试材料抗寒性由强到弱依次为M18>M4>M26>M28> M22>阳江>M29>M31>M10>M37>M16>M1>M25,其中,有5个诱变后代抗寒性优于亲本,分别是M18、M4、M26、M28、M22。匍匐茎恢复实验结果表明:诱变后代M1、M22、M26、M31、M25在0℃和-5℃低温胁迫后的恢复生长率都高于亲本,恢复能力均优于亲本;M10、M37、M28在-5℃低温胁迫下,恢复生长能力低于亲本,抗寒性相对较弱,M16和M4在0℃和-5℃低温胁迫下,恢复生长率都低于亲本,抗寒性明显弱于亲本。综合2种方法鉴定结果显示:诱变后代M1、M25的恢复能力较强;M4、M28的叶片抗寒性较好,青绿期较长;M22、M18、M26的叶片抗寒性和匍匐茎恢复能力均较强;M29,M31的叶片抗寒性和匍匐茎恢复能力与亲本相似;M10、M16、M37的叶片抗寒性和匍匐茎恢复能力均较弱,整体抗寒性较弱。 相似文献
19.