Characterization of iron, manganese, and copper synthetic hydroxyapatites by electron paramagnetic resonance spectroscopy [0.03%]
电子顺磁共振光谱法表征铁、锰和铜合成的羟基磷灰石性质
B Sutter,T Wasowicz,T Howard et al.
B Sutter et al.
The incorporation of micronutrients (e.g., Fe, Mn, Cu) into synthetic hydroxyapatite (SHA) is proposed for slow release of these nutrients to crops in NASA's Advanced Life Support (ALS) program for long-duration space missions. Separate Fe3...
Solid state 31phosphorus nuclear magnetic resonance of iron-, manganese-, and copper-containing synthetic hydroxyapatites [0.03%]
含铁、锰和铜的合成羟基磷灰石的固态31磷核磁共振研究
B Sutter,R E Taylor,L R Hossner et al.
B Sutter et al.
The incorporation of micronutrients into synthetic hydroxyapatite (SHA) is proposed for slow release of these nutrients to crops in the National Aeronautics and Space Administration's (NASA's) Advanced Life Support (ALS) program for Lunar o...
C L Mackowiak,P R Grossl,B G Bugbee
C L Mackowiak
Humic acid (HA) is a relatively stable product of organic matter decomposition and thus accumulates in environmental systems. Humic acid might benefit plant growth by chelating unavailable nutrients and buffering pH. We examined the effect ...
D C Golden,D W Ming
D C Golden
Incorporation of Mg, S, and plant-essential micronutrients into the structure of synthetic hydroxyapatite (HA) may be advantageous for closed-loop systems, such as will be required on Lunar and Martian outposts, because these apatites can b...
Modeling transport kinetics in clinoptilolite-phosphate rock systems [0.03%]
模拟clinoptilolite-磷酸盐岩系中的传输动力学
E R Allen,D W Ming,L R Hossner et al.
E R Allen et al.
Nutrient release in clinoptilolite-phosphate rock (Cp-PR) systems occurs through dissolution and cation-exchange reactions. Investigating the kinetics of these reactions expands our understanding of nutrient release processes. Research was ...
Chemical restrictions of roots in Ultisol subsoils lessened by long-term management [0.03%]
长期管理减轻了Ultisols底层土对根系的化学限制作用
D H Hardy,C D Raper Jr,G S Miner
D H Hardy
Exchangeable Al in subsoils of Ultisols in the southeastern USA can restrict rooting depth. Downward movement of basic cations (Ca, Mg, and K), applied as lime and fertilizer, may diminish that restriction over time. Materials from the argi...
Solubility and cation exchange in phosphate rock and saturated clinoptilolite mixtures [0.03%]
磷灰石与饱和斜发沸石混合物的溶解度和阳离子交换性能
E R Allen,L R Hossner,D W Ming et al.
E R Allen et al.
Mixtures of zeolite and phosphate rock (PR) have the potential to provide slow-release fertilization of plants in synthetic soils by dissolution and ion-exchange reactions. This study was conducted to examine solubility and cation-exchange ...