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便携式作物氮素监测仪性能水稻田间测试（Evaluation of Portable Crop Nitrogen Monitoring Instrument Based on Rice Field Experiment）
水稻 氮素含量 监测仪
2010/12/29
设计了2个品种和4个施氮水平的水稻田间试验，采用自行研制的便携式作物氮素监测仪获取各关键生育期的水稻冠层反射光谱信息，并实施田间协同取样和实验室氮素含量测定。通过分析水稻叶片氮含量与冠层光谱反射率及植被指数之间的相关性和定量关系，测试并评价便携式作物氮素监测仪的工作性能。结果表明，便携式作物氮素监测仪具有优异的氮素监测效果和优良的田间工作性能，在其所具备的4个特征波段中，660、710和810n...
Nitrogen Uptake by Cover Crops and Inorganic Nitrogen Dynamics in Andisol Paddy Rice Field
Cover crop Paddy field Nitrogen
2010/12/2
Paddy field rice can conserve N in the soil under flooded conditions. However, residual soil N represents a potential environment concern when fields are no longer flooded. Winter annual grass cover c...
NITROGEN CYCLING AND REMOVAL EFFICIENCY IN A RICE FIELD
nitrogen nitrogen cycle mass balance water quality
2009/10/13
The major sources and sinks of nitrogen (N) were calculated during the rice growth cycle in a lowland paddy field in Japan in order to better understand contamination of surface and groundwater. Depos...
Elementary Identification of Phenolic Allelochemicals from Dwarf Lilyturf Plant (Ophiopogon japonicus K.) and Their Growth-Inhibiting Effects for Two Weeds in Paddy Rice Field
Allelochemicals Barnyardgrass Dwarf lilyturf HPLC Monchoria
2009/7/29
Dwarf lilyturf (Ophiopogon japonicus K.), used as a weed-suppressing cover crop and a medicinal plant, was suggested to be a promising natural herbicide to control weeds in the rice field through its ...
Development of paddy-upland roatation techniques in rice field and research subjects in the furure
paddy-upland roatation techniques rice field research subjects
2009/7/15
Development of paddy-upland roatation techniques in rice field and research subjects in the furure.
黄鳝激素敏感性脂肪酶基因Hsl染色体原位杂交定位Chromosomal Localization of the Hormone-sensitive Lipase Gene (Hsl) in Rice Field Eel
黄鳝 Hsl基因 Southern杂交 FISH
2007/12/30
摘要动物脂肪组织中的甘油三酯在数量上是最重要的储存能源。Hsl基因所编码的激素敏感性脂肪酶是一种多功能酶。它通过催化水解储存在脂肪组织中的甘油三酯，以及卵巢、肾上腺、睾丸和胎盘中的胆固醇酯，在机体能量供应和类固醇生成作用中发挥重要作用。本研究以放射性同位素和地高辛标记重组质粒pBS中所含猪Hsl基因作为探针，分别与Pst Ⅰ酶切的黄鳝基因组总DNA和有丝分裂染色体标本进行Southern杂交和荧光...
SOIL PH AND ITS ROLE IN CYANOBACTERIAL ABUNDANCE AND DIVERSITY IN RICE FIELD SOILS
abundance cyanobacteria diversity indices rice ecologies soil pH
2010/3/25
The influence of soil pH was evaluated on the abundance and generic diversity of
cyanobacteria in soil samples collected from diverse rice soil ecologies of India. Qualitative and quantitative studie...