Effect of Regulated Deficit Irrigation on Physiological and Photosynthetic Characteristics of Summer Maize and Its Optimized Combination of Agronomic Techniques
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Effect of Regulated Deficit Irrigation on Physiological and Photosynthetic Characteristics of Summer Maize and Its Optimized Combination of Agronomic Techniques
Issue 3, Pages: 182-186(2006)
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Published:2006
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移动端阅览
Effect of Regulated Deficit Irrigation on Physiological and Photosynthetic Characteristics of Summer Maize and Its Optimized Combination of Agronomic Techniques[J]. 2006, (3): 182-186.
DOI:
Effect of Regulated Deficit Irrigation on Physiological and Photosynthetic Characteristics of Summer Maize and Its Optimized Combination of Agronomic Techniques[J]. 2006, (3): 182-186.DOI:
Effect of Regulated Deficit Irrigation on Physiological and Photosynthetic Characteristics of Summer Maize and Its Optimized Combination of Agronomic Techniques
摘要
在移动式防雨棚下,采用子母盆栽土培法和池栽微区试验相结合的方法,以夏玉米(Zeamay L.)为材料进行了调亏灌溉试验研究。结果表明,适时适度的水分调亏显著抑制蒸腾速率(Tr),而光合速率(Pn)下降不明显,复水后Pn又具有超补偿效应,光合产物具有超补偿积累,且有利于向籽粒运转与分配;抑制营养生长,促进生殖生长。玉米节水高产的调亏灌溉指标是:调亏时段为三叶-心-拔节(七叶一心),调亏度为45%FC(Field water capacity,FC)~65%FC,历时21d;或拔节一抽穗调亏,调亏度为60%FC~65%FC,历时21d;平均比对照增产25.24%,节水15.41%,水分利用效率提高45.05%。根据3因子正交旋转组合设计综合试验资料,分别建立了经济产量(Y)及水分利用效率(WUE)数学模型。
Effect of Regulated Deficit Irrigation on Physiological and Photosynthetic Characteristics of Summer Maize and Its Optimized Combination of Agronomic Techniques
Effects of Regulated Deficit Irrigation on Leaf Nutrients, Enzyme Activities,and Root Zone Soil Nutrients during Fruit Expansion and Coloration-Sugar Accumulation Stages of Citrus in Western Hubei Province
Water and Nitrogen Utilization and Apparent Budget of Soil Nitrogen under Different Types of Nitrogen Fertilizer and Different Application Rates in Summer Maize
Effect of Regulated Deficit Irrigation on Growth Characteristic and Yield of Plastic Film Mulched Spring Wheat
Effects of Deep Storage Irrigation on Soil Moisture Dynamics of Summer Maize Farmland
Related Author
MENG Zhao-jiang
BIAN Xin-ming
LIU An-neng
PANG Hong-bin
WANG He-zhou
HUANG Zhikun
ZHU Shijiang
ZHU Zirong
Related Institution
Hubei Key Laboratory of Hydropower Engineering Construction and Management, China Three Gorges University
Hydrological and Water Resources Survey Centre of Shaanxi, Xian
Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling