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基于液芯柱透镜测量磷肥水溶液的液相扩散系数 被引量:1
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作者 周志和 刘哲 +2 位作者 李黎 孟伟东 普小云 《光散射学报》 2021年第2期171-178,共8页
磷肥水溶液在水体中的扩散是造成湖泊水质富营养化的重要原因之一。本文基于液芯柱透镜构建的光学检测系统,用“等折射率薄层”移动方法,在室温下(25℃)分别测量了磷酸氢二铵(DAP),磷酸二氢铵(MAP)和磷酸二氢钾(KDP)三种磷肥水溶液的液... 磷肥水溶液在水体中的扩散是造成湖泊水质富营养化的重要原因之一。本文基于液芯柱透镜构建的光学检测系统,用“等折射率薄层”移动方法,在室温下(25℃)分别测量了磷酸氢二铵(DAP),磷酸二氢铵(MAP)和磷酸二氢钾(KDP)三种磷肥水溶液的液相扩散系数(D值),测量结果分别为D_(DAP)=(1.012±0.019)×10^(-5)cm^(2)/s,D_(MAP)=(1.030±0.042)×10^(-5)cm^(2)/s和D_(KDP)=(1.019±0.097)×10^(-5)cm^(2)/s,并用“泰勒分散法”验证了测量结果的正确性。三种磷肥水溶液液相扩散系数的准确测量,对湖泊水污染过程数学模型的建立及求解具有重要的应用价值,其在湖泊水污染的防治方面有重要的科学和环保意义。 展开更多
关键词 液相扩散系数 液芯柱透镜 等折射率薄层移动法 磷肥溶液 水体富营养化
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栽树蘸磷易成活(外一条)
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作者 高发修 《专业户》 2004年第7期21-21,共1页
用磷肥溶液浸根或蘸根,能促使新根增多,扩大根系吸收范围,有效地增强苗木抗旱能力及其对水分的吸收。磷肥溶液的配制方法是:在大桶或塑料盆、水缸、池内放人1.5公斤过磷酸钙,加水50公斤,再加捣碎的黄泥10公斤搅匀即可,使用时将树苗浸根3... 用磷肥溶液浸根或蘸根,能促使新根增多,扩大根系吸收范围,有效地增强苗木抗旱能力及其对水分的吸收。磷肥溶液的配制方法是:在大桶或塑料盆、水缸、池内放人1.5公斤过磷酸钙,加水50公斤,再加捣碎的黄泥10公斤搅匀即可,使用时将树苗浸根30分钟或即蘸根即栽植,可使树苗发根快。 展开更多
关键词 磷肥溶液 浸根 蘸根 造林技术
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The Enhancement of Melon Fruit Quality by Application of the Fertilizer and Gibberellin 被引量:1
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作者 Sri Budiastuti Djoko Pumomo Trijono Djoko Sulistyo Suharto Ponco Rahardjo Linayanti Darsono YosefVictorianus Pardjo 《Journal of Agricultural Science and Technology(B)》 2012年第4期455-460,共6页
Generally, the diameter of organic melon fruit relatively short (the fruit is small), weight of fruit just as big as 1.25-1.49 kg only, while weight of inorganic melon fruit can reach 2-3 kg. The research was conduc... Generally, the diameter of organic melon fruit relatively short (the fruit is small), weight of fruit just as big as 1.25-1.49 kg only, while weight of inorganic melon fruit can reach 2-3 kg. The research was conducted by experiment method with the aim to enhance quality of the organic melon fruit. Experiment I is: N, P and K fertilizer solution concentration as main plot (0, 20, 30, and 40 g L^-1) and dose of cow manure fertilizer as sub plot (0, 10, 15, and 20 ton hal) (there are 16 treatment combinations). Experiment II is kinds of dung as main plot (chicken, cow, and goat) and dose of fertilizer as sub plot (20, 25, and 30 ton hat) (there are 9 treatment combinations). Experiment III is dose of cow manure fertilizer as main plot (15, 20, 25, and 30 ton hal) and gibberellins concentration as sub plot (0, 30, 60, and 120 ppm) and (there are 16 treatment combinations). Each of the treatment combination replicated 3 times. The result showed that chicken, cow, and goats manure can be used in organic cultivation of melons, and cow manure has the highest potential. The role of the dose is relatively low in plant growth, but to improve the quality of fruit need dose of 10-15 tons hat. The addition of inorganic NPK fertilizer solution or use of gibberellins can increase growth and fruit quality of melon (the used of gibberellins are recommended). 展开更多
关键词 Organic fertilizer MELON gibberellins.
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