当前位置:大学毕业论文> 本科论文>材料浏览

关于水肥论文范文写作 高垄覆膜水肥一体化技术对设施土壤理化性状蔬菜产量影响相关论文写作资料

主题:水肥论文写作 时间:2024-02-15

高垄覆膜水肥一体化技术对设施土壤理化性状蔬菜产量影响,本论文为您写水肥毕业论文范文和职称论文提供相关论文参考文献,可免费下载。

水肥论文参考文献:

水肥论文参考文献 高电压技术期刊机电一体化技术论文农村新技术杂志电脑知识和技术杂志

摘 要:以高垄覆膜水肥一体化技术(FG+H)为试验处理,膜下沟灌(FP)为对照,通过田间试验研究了高垄覆膜水肥一体化技术对设施土壤理化性状及蔬菜产量的影响.结果表明,定植后26~55天,FG+H处理明显提高了20 cm处地温;定植后118~154天,5、10、15、20、25 cm处地温均低于FP.FG+H处理的表层土壤饱和导水率明显提高,是FP的2.2倍.FG+H处理可明显降低0~60 cm土壤硬度,而对土壤密度无明显影响.FG+H处理0~20 cm土壤全氮、有效磷、速效钾、有机质含量比FP分别提高18.4%、47.6%、34.9%和20.9%,且明显降低了0~200 cm土壤剖面硝态氮含量.FG+H处理相对FP有缓解土壤酸化和盐化的趋势.FG+H处理番茄采收期相对FP推迟约10天左右,但FG+H处理番茄总产量相对FP提高了19.9%.本研究结果表明,FG+H处理不仅明显改善了设施土壤理化性状,而且番茄产量也明显提高.

关键词:日光温室;高垄覆膜;水肥一体化;土壤理化性状;蔬菜产量

中图分类号:S153 文献标志码:A 论文编号:2014-0500

Abstract: The experimental treatment is combination of plastic mulching and high-ridge and fertigation (FG+H), membrane under furrow irrigation (FP) as the control, a field experiment was carried out to study that effect of combination of plastic mulching and high-ridge and fertigation on soil physiological and chemical characteristics and yield of vegetables in sunlight greenhouse. The results showed that: the soil temperature in 20 cm of plastic mulching of high-ridge combination fertilization(FG+H) increased significantly at 26 to 55 days after planting, The soil temperature of plastic mulching of high-ridge combination fertilization (FG+H) lower than membrane under furrow irrigation (FP) in soil depth of 5, 10, 15, 20, 25 cm separately, after 118 to 154 days planting. Plastic mulching of high-ridge combination fertilization (FG+H) increased significantly surface soil saturated hydraulic conductivity, that was 2.2 times of membrane under furrow irrigation (FP). And soil hardness reduced significantly in 0-60 cm soil depth, but had no effect on soil bulk density. Plastic mulching of high-ridge combination fertilization (FG+H) reduced significantly nitrate nitrogen in 0-200 cm soil profile, And reduce the risk of soil acidification and salinization. FG+H treatment tomato harvest period relative FP delayed about 10 days, but The FG+H treatment tomato yield increased by 19.9% relative to FP. Research results showed that, combination of plastic mulching and high-ridge and fertigation (FG+H) not only significantly ameliorated the soil physical and chemical properties and the yield of tomato increased significantly in sunlight greenhouse.

Key words: Sunlight Greenhouse; Combination of Plastic Mulching and High-ridge; Fertigation; Soil Physiological and Chemical Characteristics; Yield of Vegetables

0 引言

设施土壤是设施农业赖以发展的物质基础[1],随着中国设施栽培面积的迅速扩大及栽培年限的增加,设施土壤环境恶化,已成为制约设施农业可持续发展的瓶颈[2].连作障碍以及灌溉施肥是影响设施土壤环境的2个因素,轮作倒茬是缓解连作障碍既经济又有效的措施之一,但在实际生产中,受蔬菜市场影响以及经济利益驱动,轮作倒茬难以实施,而传统的灌溉施肥方式不仅造成水肥资源浪费,同时也导致了土壤养分失衡[3]、C/N比失调[4]、次生盐渍化[5]、酸化[6]等一系列问题,并且肥料种类对设施土壤pH和EC值也有不同程度的影响[7].因此,改变灌溉施肥方式可以达到改善设施土壤环境的目的.

结论:关于水肥方面的论文题目、论文提纲、水肥一体化滴灌设备论文开题报告、文献综述、参考文献的相关大学硕士和本科毕业论文。

水肥一体化技术在柬埔寨西瓜生产中应用
摘 要:柬埔寨由于有着明显的热带季风气候,一年的季节只分旱季和雨季,因而非常适合西瓜的种植。随着科学技术的发展,西瓜的品种和种植技术得到进一步的。

设施辣椒水肥一体化栽培技术
摘 要:连云港市赣榆区设施蔬菜规模发展快,在赣榆区设施蔬菜栽培中,辣椒面积占有较大比重。水肥管理是设施辣椒生产过程中重要的环节,水肥一体化灌溉施。

设施茄子水肥一体化技术试验示范
摘 要:为提高设施蔬菜水肥利用率,为设施茄子生产提供参考数据,在同一个日光温室内设置水肥一体化处理和对照(CK)小区,研究了设施茄子水肥一体化栽。

刍议设施蔬菜中水肥一体化技术应用
摘 要:“大水大肥”的粗放管理,是传统设施蔬菜灌溉和施肥所出现的主要问题,在此种模式下肥料与灌溉水的投入量,可能会超过作物实际的需求量,达到其2。

论文大全