Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Noah James Langenfeld"'
Autor:
Noah James Langenfeld, Bruce Bugbee
Publikováno v:
HortScience, Vol 59, Iss 8 (2024)
Here we review the 400-year history of hydroponic culture and describe a unique management approach that does not require leaching or discarding solution between harvests. Nutrients are maintained at a low and steady concentration by daily additions
Externí odkaz:
https://doaj.org/article/05a1474936aa4e19b0e533ef465543b8
Publikováno v:
Frontiers in Plant Science, Vol 15 (2024)
Rhizosphere pH determines nutrient bioavailability, but this pH is difficult to measure. Standard pH tests require adding water to growth media. This dilutes hydrogen ion activity and increases pH. We used a novel, in situ, pointed-tip electrode to e
Externí odkaz:
https://doaj.org/article/54c66ab5a31f46c9b53148e36d1f8b2b
Autor:
Noah James Langenfeld, Bruce Bugbee
Publikováno v:
PLoS ONE, Vol 18, Iss 9, p e0289151 (2023)
Silicon (Si) in plant tissues reduces abiotic and biotic stress, but it is incorporated as silica (SiO2), which is difficult to solubilize for analysis. We modified an oven-induced tissue-digestion and analysis method to improve Si solubilization and
Externí odkaz:
https://doaj.org/article/8dc659d7f96f4f34819190900d19261b
Autor:
Noah James Langenfeld, Bruce Bugbee
Publikováno v:
PLoS ONE, Vol 17, Iss 10 (2022)
Germination and seedling establishment for transplanting into hydroponics often uses porous substrates, but fine roots grow into these substrates, and they cannot be removed without damaging these roots. Seedlings transplanted without removal of subs
Externí odkaz:
https://doaj.org/article/1dfce13e4956436eb6042e98d72fed28
Publikováno v:
PLoS ONE, Vol 16, Iss 11 (2021)
Urea is a byproduct of the urea cycle in metabolism and is excreted through urine and sweat. Ammonia, which is toxic at low levels, is converted to the safe storage form of urea, which represents the largest efflux of nitrogen from many organisms. Ur
Externí odkaz:
https://doaj.org/article/c1055c9eb0584afeb8d3e326fe373074
Publikováno v:
Sustainability. 14:10204
Mass balance principles are a cornerstone of efficient fertilizer use and can be utilized to optimize plant nutrition without discarding or leaching solution. Here, we describe the maintenance of closed hydroponic and soilless substrate systems based