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Influence of Solution Management Techniques on Nutrient Use Efficiency in Hydroponically Grown Salad-type Plants
Başlık:
Influence of Solution Management Techniques on Nutrient Use Efficiency in Hydroponically Grown Salad-type Plants
Yazar:
Burton, Amirah, author.
ISBN:
9780355984163
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (64 pages)
Genel Not:
Source: Masters Abstracts International, Volume: 57-06M(E).
Advisors: Gregory Goins Committee members: Scott Harrison; Checo Rorie.
Özet:
Water is a vital natural resource for humans, being also indispensable for all ecosystems. The contamination of our water source is a global concern. The water crisis is resulting mainly from the increasing water consumption and the growing number of human derived substances that exist in some regions of the world. Hydroponics is an alternative method of growing crops without the use of soil, but with a water-based nutrient system. Standard nutrient solution management approaches include constant pH regulation and daily adjustment of electrical conductivity equivalent to half-strength Hoagland's solution. Replenishing nutrients in hydroponic systems through estimates of total salt concentration could result in excessive uptake of N, rather than risk N deficiency and reduced plant growth. Hence, there is no consensus on the best N management strategy in salad-type plant production. It is a challenge to supply the optimal level of N for plants in an environmentally sound manner, without producing excess N solutes not taken up by plants. it is important to better understand processes that govern N-uptake and biomass partitioning in salad-type crops with respect to both environmental concerns and the quality of plants. Our study tested hydroponics as a sustainable agriculture technique to produce substantial amounts of basil and radish plants. Treatments included 0.25x (600uS/m), 0.50x (1200uS/m), and 1x (2400uS/m) concentrations of Hoagland's nutrient solution to analyze differences in plant growth, total plant biomass yield, and plant biomass nutrient partitioning. We aim to produce quality crops by identifying and quantifying minerals present in plants via an ICP-AES analysis. Our results indicated that the 0.50x concentration produced the greatest plant height, as well as total plant biomass yield for basil; radish results were not consistent. We conclude that using the 0.50x concentration of Hoagland's solution can achieve high yields without the excess N supply observed in the 1x Hoagland's treatment.
Notlar:
School code: 1544
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
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