兰州大学机构库 >草地农业科技学院
集水灌溉和施肥对半干旱区春小麦生态位适宜度和产量的影响
Alternative TitleEffects of irrigation and fertilization treatments for rainfall-harvesting agriculture on niche fitness and yield of spring wheat in semi-arid regions
李文龙; 苏敏; 李自珍; Li, Z. (zizhenlee@lzu.edu.cn)
2010-04-30
Source Publication农业工程学报
ISSN1002-6819
Volume26Issue:4Pages:42-48
Abstract为了探讨利用农业集水进行的控制灌溉和施肥对提高春小麦生态位适宜度和增加产量的重要作用,该文采用田间小区试验和建模分析方法,研究了不同供水和不同施肥对春小麦叶面积指数(LAI)、根生物量、生态位适宜度与产量的影响。结果表明:不同灌溉供水量与不同施肥量对春小麦LAI和根生物量都呈现出显著的影响,其中丰水、平水和自然降水比低水处理的LAI最大值(开花期)分别增加56.9%、30.9%和19.1%;根生物量平均值分别增加84.2%、50.4%和26.6%;同时施肥与相应不施肥相比亦有显著增加。春小麦生态位适宜度与产量的结果显示:在丰水、平水、自然降水和低水处理下的适宜度(F(t))平均值分别为0.66...
Other AbstractIn order to explore the important role of irrigation and fertilization for rainfall-harvesting agriculture on improving the niche-fitness and increasing productivity of spring wheat, the effects of different water supply and fertilizer treatments on the leaf area index, root biomass, niche-fitness and productivity were studied by the field plot experiment and modeling method. The results showed that impacts of water supply and fertilizer treatments on leaf area index (LAI) and root biomass were dramatic. Compared rich water treatment (RW), medium water treatment (MW) and nature water treatment (NW) with low water treatment (LW), the maximum LAI in anthesis increased by 56.9%, 30.9% and 19.1%, and the mean of root biomass increased by 84.2%, 50.4% and 26.6%, respectively. Meanwhile, these indices were also increased significantly comparing fertilization with no fertilizer application. The results about niche-fitness and productivity showed that under RW, MW, NW and LW conditions, the means of fitness (F(t)) were 0.6631, 0.5670, 0.5174 and 0.4763 kg/hm2, and the means of grain yield were 3159.2, 2345.2, 1735.7 and 1380.6 kg/hm2, respectively. Compared RW, MW and NW with LW, the fitness increased by 39.2%, 19.0% and 8.6%, and the mean of grain yield increased by 128.8%, 69.9% and 25.7%, respectively. These results indicated that increased water supply had a significant positive impact on improving fitness and productivity. Meanwhile, fertilization also played an active part in improving fitness and productivity. Statistical analysis showed that the grain yield was linear interrelated with the fitness values. The evaluation results under 16 different treatments showed that low fertilization treatment (LF), medium fertilization treatment (MF), high fertilization treatment (HF) under RW condition, MW with HF, and NW with HF, the growth condition of crop belonged to suitable; the other 11 treatments belonged to moderate or inaptitude. The maximum value of fitness (0.8351) and the highest grain yield (4275.8 kg/hm2) occurred consistently under rich water with high fertilization, which indicates this combined treatment measure is optimal for niche-fitness and productivity in semi-arid regions.
Keyword灌溉 肥料 粮食 农业集水工程 春小麦 生态位适宜度 产量 半干旱区 Active parts Combined treatment Evaluation results Fertilizer applications Field plot Fitness values Grain Grain yield Growth conditions Leaf area index Low water Maximum values Modeling method Niche fitness Root biomass Semi-arid region Spring wheat Statistical analysis
Subject AreaChemical Products Generally ; .biochemical Engineering ; Agricultural Chemicals ; Agricultural Methods ; Agricultural Products ; Agricultural Wastes ; Impact Of Technology On Society ; Production Engineering ; Industrial Hygiene ; Machine Components ; Meteorology ; Precipitation ; Water Resources ; Water Treatment Techniques ; Water Supply Systems ; Water Pollution Control ; Ecology And Ecosystems ; Medicine And Pharmacology ; Energy Resources And Renewable Energy Issues
PublisherChinese Society of Agricultural Engineering
DOI10.3969/j.issn.1002-6819.2010.04.007
Publication PlaceBeijing
Indexed ByEI ; CSCD
Language中文
First Inst
Funding Project国家自然科学基金项目 ; 教育部人文社会科学研究一般项目 ; 甘肃省科技支撑计划
Host of Journal中国农业工程学会
Project Number国家自然科学基金项目(30970478,30970491) ; 教育部人文社会科学研究青年项目(06JC790020) ; 甘肃省“十一·五”科技支撑重点项目
CSCD IDCSCD:3943214
Funding OrganizationNSFC ; MOE ; GSSTD
SubtypeArticle
EI ID20102413003556
IRIDCNKI:0042873
Department兰州大学草地农业科技学院;
农业部草地农业生态系统学重点实验室;
合肥工业大学数学学院;
兰州大学数学与统计学院;
兰州大学干旱与草地生态教育部重点实验室
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/152464
Collection草地农业科技学院
Corresponding AuthorLi, Z. (zizhenlee@lzu.edu.cn)
Recommended Citation
GB/T 7714
李文龙,苏敏,李自珍,等. 集水灌溉和施肥对半干旱区春小麦生态位适宜度和产量的影响[J]. 农业工程学报,2010,26(4):42-48.
APA 李文龙,苏敏,李自珍,&Li, Z. .(2010).集水灌溉和施肥对半干旱区春小麦生态位适宜度和产量的影响.农业工程学报,26(4),42-48.
MLA 李文龙,et al."集水灌溉和施肥对半干旱区春小麦生态位适宜度和产量的影响".农业工程学报 26.4(2010):42-48.
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