Wyniki wyszukiwania

1

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Usovershenstvovanie processa proizvodstva zelenykh kormov gidroponnym sposobom

100%

Prishljak V., Sokolenko O.

Motrol. Motoryzacja i Energetyka Rolnictwa

|

2014

|

tom 16

|

nr 5

2

Usefulness of Iris x hollandica Hoog. 'Blue magic' for forcing in water

63%

Krzyminska A., De Mezer E.

Roczniki Akademii Rolniczej w Poznaniu. Ogrodnictwo

|

2007

|

tom 41

81-86

3

Production of soybean plants for hydroponic cultivation from seedling cuttings in a medium containing Rhizobium inoculum depending on various concentrations of nutrient solution and different nitrogen sources

63%

Hata N., Futamura H.

Journal of Horticultural Research

|

2020

|

tom 28

|

nr 2

4

Changes of physical properties in rockwool and glasswool slabs during hydroponic cultivation of roses

51%

Nowak J. S.

Journal of Fruit and Ornamental Plant Research

|

2010

|

tom 18

|

nr 2

349-360

Roses cv. 'Trixx' were grown in 4 different slabs of mineral wool (100 cm length, 15 cm width and 7.5 cm height), which were placed on specially constructed racks in a greenhouse. The cultivation method using bent shoots was used. The studied growth media were: rockwool slabs - Master and Pargro which had a horizontal fibrous structure, Bomat slabs with a homogeneous structure and glasswool Cultilene slabs with a homogeneous structure. The physical properties of mineral wool slabs were obtained from 15 cm long and 15 cm width samples. The samples were taken from slabs before cultivation, and periodically from a greenhouse during the 2.5 year growing period (6, 12, 18, 24 and 30 months after planting). The bulk density increased and total porosity decreased in the Master and Cultilene slabs as early as after six months of cultivation. Other changes in the remaining slabs were not evident until the end of the cultivation stage. The air-water properties depended on the cultivation time and were very different at -4 cm H2O. More stable values of air-water properties were observed at -10 cm H2O. Usually in the beginning of the cultivation period, water content was lower - especially at the -10 to -5 0 cm H2O range of water potential.

5

The response of hydroponically grown lettuce under Mn stress to differentiated application of silica sol

51%

Kleiber T., Krzesinski W., Przygocka-Cyna K., Spizewski T.

Journal of Elementology

|

2015

|

tom 20

|

nr 3

A way to alleviate excessive Mn nutrition of plants is through silicon application. The aim of the present study was to examine the effect of different Si concentrations in a nutrient solution and Si plant spraying treatments (in the form of silica sol) on the yielding and nutritional status of hydroponically grown lettuce under Mn-stress. The experiments were conducted under controlled conditions in a phytotron. The influence of the following Si levels in the nutrient solution (5.5 – control; 15.5; 23.25 and 31 mg Si dm-3) and foliar sprays (distilled water; Si solution) were investigated. Silicon supplied through fertigation significantly affected the plant’s nutrient status and alleviated the Mn stress, increasing fresh matter production, RWC (Relative Water Content) and the number of leaves per plants, while decreasing the share of dry matter. The Si nutrition did not change the content of Mn in the leaves, but caused a significant increase in N, P, Na, Fe and Si concentrations with a simultaneous decrease of Zn and Cu levels. The content of Ca, Mg and K was relatively stable (except for the treatment with the most intensive Si nutrition). Generally, the concentrations of N, P, K, Ca, Mg, Na and Fe within the tested Si range were higher than in the control, while being lower in the case of Zn and Cu. Overall, the foliar application of Si did not change plant yielding, the number of leaves on plants and most macro- and microelement concentration in leaves, but modified significantly the RWC as well as the Cu and Na content. The dry matter content under Si nutrition was varied. In summary, an effective method to alleviate Mn-stress is to apply silica sol to a nutrient solution used for plant fertigation.

6

Evaluation of changes in the growth and chemical constituents of Anoectochilus formosanus Hayata grown under hydroponic conditions

51%

Nguyen H. C., Nhu T. Q. M., Dung P. V., Hieu N. D., Tuan T. T., Huyen P. X., Truong D.-H.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

|

2018

|

tom 99

|

nr 4

7

Uprawa bez ziemi

45%

Syga P.

Kwietnik

|

2005

|

nr 08

20-21