THE COMPARISON OF AMMONIUM OR NITRATE-GROWN LETTUCE AND SPINACH IN A HYDROPONIC SYSTEM

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ROUSTA H.R.

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Journal: SOIL AND PLANT INTERACTIONS (JOURNAL OF SCIENCE AND TECHNOLOGY OF GREENHOUSE CULTURE) Year:2010 | Volume:1 | Issue:1 Page(s): 57-63

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Title

THE COMPARISON OF AMMONIUM OR NITRATE-GROWN LETTUCE AND SPINACH IN A HYDROPONIC SYSTEM

Author(s)

ROUSTA H.R. | | Issue Writer Certificate

Keywords

SOILLESS CULTUREQ3

VEGETABLEQ4

NITROGENQ4

CHLOROPHYLLQ2

NUTRIENTSQ2

Abstract

Most plant species are sensitive to high ammonium concentrations. In this experiment the sensitivity of lettuce and spinach to ammonium was investigated. In a factorial experiment with framework of a completely randomized design with two factors, NITROGEN form (ammonium and nitrate) and plant species (lettuce and spinach), and three replications seeds were germinated in a mixture of perlite, sand and clay in soil-maid pots. After two weeks, the seedlings at two true-leaf stage were then transferred to buckets containing 4 L of aerated nutrient solution. The four plants were growing together. The treatments were ammonium and nitrate at 5 mM. In comparison to nitrate, ammonium reduced the growth of both species. Concentration of K, Mg, and Na decreased with ammonium in both species. The reduction of K and Mg concentrations in ammonium-fed plants may have a role in ammonium toxicity. Ammonium nutrition of both species caused an increase in P at roots and shoots. Higher P content at ammonium-fed lettuce and spinach plants may be due to creation of cations and anions balance in plants. CHLOROPHYLL a and b were higher in ammonium-fed than nitrate-fed plants.

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APA: Copy

ROUSTA, H.R.. (2010). THE COMPARISON OF AMMONIUM OR NITRATE-GROWN LETTUCE AND SPINACH IN A HYDROPONIC SYSTEM. SOIL AND PLANT INTERACTIONS (JOURNAL OF SCIENCE AND TECHNOLOGY OF GREENHOUSE CULTURE), 1(1), 57-63. SID. https://sid.ir/paper/226325/en

Vancouver: Copy

ROUSTA H.R.. THE COMPARISON OF AMMONIUM OR NITRATE-GROWN LETTUCE AND SPINACH IN A HYDROPONIC SYSTEM. SOIL AND PLANT INTERACTIONS (JOURNAL OF SCIENCE AND TECHNOLOGY OF GREENHOUSE CULTURE)[Internet]. 2010;1(1):57-63. Available from: https://sid.ir/paper/226325/en

IEEE: Copy

H.R. ROUSTA, “THE COMPARISON OF AMMONIUM OR NITRATE-GROWN LETTUCE AND SPINACH IN A HYDROPONIC SYSTEM,” SOIL AND PLANT INTERACTIONS (JOURNAL OF SCIENCE AND TECHNOLOGY OF GREENHOUSE CULTURE), vol. 1, no. 1, pp. 57–63, 2010, [Online]. Available: https://sid.ir/paper/226325/en

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