| 王加蓬,蔡焕杰,王健,康敏.温室甜瓜膜下滴灌初花期适宜蒸发皿系数研究[J].干旱地区农业研究,2009,27(4):22~26 |
| 温室甜瓜膜下滴灌初花期适宜蒸发皿系数研究 |
| Study on suitable crop-pan coefficients during early florescence for drip-irrigated muskmelon under film mulch in greenhouse |
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| DOI：10.7606/j.issn.1000-7601.2009.04.04 |
| 中文关键词: 甜瓜 日光温室 膜下滴灌 蒸发皿系数 光合特性 |
| 英文关键词:muskmelon greenhouse drip irrigation leaf area model |
| 基金项目:国家自然科学基金项目（50779059） |
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| 摘要点击次数: 195 |
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| 中文摘要: |
| 在日光温室膜下滴灌条件下，采用E20蒸发皿的水面蒸发量控制灌溉，研究了不同蒸发皿系数（Kcp=0.45,0.6,0.75,0.9）对初花期甜瓜生长、生理特性的影响。结果表明：（1）水分处理对温室膜下滴灌甜瓜15 cm处地温产生了显著影响，其中T2(0.6)与T3(0.75)处理的地温对甜瓜生长较为有利；（2）水分处理对甜瓜叶片扩展和叶面积大小影响较大，以2 d为灌溉周期，蒸发皿系数（Kcp）采用0.6有利于甜瓜叶片扩展，而且植株叶面
积最大；（3）从甜瓜株高、茎粗/株高、总生物量与根冠比、叶片水分状况、叶片光合生理指标等综合分析，蒸发皿系数Kcp采用0.6（T2）都要
优于其它水分处理。 |
| 英文摘要: |
| Based on the irrigation interval of 2 days, this study was conducted to evaluate the effects of different plant pan coefficient(Kcp=0.45, 0.60, 0.75 and 0.90) on the growth and physiological characteristics of drip-irrigated muskmelon under film mulch in greenhouse. Irrigation quantities were determined by water surface evaporation (Epan) measured by a standard 0.2 m diameter pan. The results showed that: (1) The ground temperature (15 cm) of muskmelon was remark
ably influenced by different water treatments. Among them, the treatments of T2 and T3 were more suitable to the growth of muskmelon; (2) The leaf size and deve
lopment of muskmelon was greatly influenced by different water treatments. Based on the interval of 2 days, keeping the plant-pan coefficient(Kcp) as 0.6 not only were of advantage to the development of leaf, but also obtained the maximal leaf area; (3) Through analyzing plant height, stem diameter/plant hei
ght, biomass, root/shoot, leaf water status, leaf photosynthetic index, the results indicated that keeping the plant pan coefficient(Kcp) as 0.6 was
more suitable to the development of drip-irrigated muskmelon under film mulch in greenhouse. Water saving and efficient management was reached in the treatment
of T2. |
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