Yield and Nutritional Quality of Water Spinach (Ipomoea Aquatica) as Influenced by Hydroponic Nutrient Solutions with Different PH Adjustments. | [International Journal of Agriculture and Biology • 2017]

Author(s):

1. Lichun Wang: Beijing Agricultural IOT Engineering Technology Research Center, Beijing 100097, China: Beijing Research Center for Information Technology in Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China

2. Xiaoli Chen: Beijing Research Center for Information Technology in Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China: Key Laboratory of Urban Agriculture (North), Ministry of Agriculture, Beijing 100097, China

3. Wenzhong Guo: Beijing Agricultural IOT Engineering Technology Research Center, Beijing 100097, China: Beijing Research Center for Information Technology in Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China

4. Yinkun Li: Beijing Agricultural IOT Engineering Technology Research Center, Beijing 100097, China: Beijing Research Center for Information Technology in Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China

5. Hua Yan: Beijing Agricultural IOT Engineering Technology Research Center, Beijing 100097, China; Beijing Research Center for Information Technology in Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China

6. Xuzhang Xue: Beijing Agricultural IOT Engineering Technology Research Center, Beijing 100097, China: Beijing Research Center for Information Technology in Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China

Abstract:

It is critical to identify effective buffer chemicals which are capable of regulating the pH of nutrient solution to a desirable level for best hydroponic production of crops. Greenhouse experiments were conducted to examine the pH dynamics of nutrient solutions amended with different inorganic acids during hydroponic production and the yield and nutritional quality of the resulting crops. A typical nutrient solution (pH 8.2) was adjusted to a pH of 5.6±0.2 with 1 M HNO3, 1 M H3PO4, 1 M H2SO4, and a 3:1:1 (v/v/v) mixture of all three acids, respectively. Water spinach (Ipomoea aquatica Forsk) was hydroponically grown for 25 d in the unadjusted control and the pH-adjusted nutrient solutions. The different treatments were monitored for pH changes of the nutrient solution, and measured for shoot yield and nutritional quality of the grown water spinach. It showed that the solution pH adjustments introduced additional anions but did not significantly increase the electrical conductivity (EC). The HNO3-H3PO4-H2SO4 mixture was able to achieve an optimal solution pH ranging from 5.5 to 6.5, while any of the acids only failed to maintain the solution pH within optimal range for 48 h after each adjustment. The shoot fresh weight, dry weight, and height of water spinach grown in the mixed acids-treated solution were the greatest among the five treatments. Relative to the control, the acid mixture treatment also increased the vitamin C, soluble sugar and crude protein contents in plants. Thus, the mixed 3:1:1 (v/v/v) HNO3-H3PO4-H2SO4 is recommended for regulating the pH of nutrient solution in hydroponic production of leafy greens.

Page(s): 635-642

DOI: 10.17957/IJAB/15.0311

Published: Journal: International Journal of Agriculture and Biology, Volume: 19, Issue: 4, Year: 2017

Keywords:

Keywords are not available for this article.

References:

[1] Aftab , M.,M.A.U.L. Haq , J.,Akhtar and E.A.,Waraich, 2015.Salinity and boron tolerance in cotton (Gossypium hirsutum) varieties: A shortterm hydroponic study,Int. J. Agric. Biol 17 797 -802

[2] Bernstein , L., 1975.Effects of Salinity and Sodicity on Plant Growth, 13 295 -312

[3] Bertoni , G.M.,A.Pissaloux,P.Morard,D.R.Sayag, 1992.BicarbonatepH relationship with iron chlorosis in white lupine,J. Plant Nutr 15 1509 -1518

[4] Brady , N.C.,R.R.Weil, 2007.The Nature and Properties of Soils, 14th edition, -

[5] Bugbee , B., 2004.Nutrient management in recirculating hydroponic culture,South Pacific Soilless Culture Conference-SPSCC 648 99 -112

[6] Caruso , G.,G.Melchionna,S.Conti, 2011.Effects of cultural cycles and nutrient solutions on plant growth, yield and fruit quality of alpine strawberry (Fragaria vesca L.) grown in hydroponics,Sci. Hortic 129 479 -485

[7] Chesnin , L. and C.H.,Yien, 1951.Turbidimetric determination of available sulfates,Soil. Sci. Soc. Amer. J. 15 149 -151

[8] Domingues , D.S.,H.W.Takahashi,C.A.Camara,S.L.Nixdorf, 2012.Automated system developed to control pH and concentration of nutrient solution evaluated in hydroponic lettuce production,Comput. Electron. Arg. 84 53 -61

[9] Giuffrida , F.,C.Leonardi,B-S. P., 2012.Nutrient solution concentration on pepper grown in a soilless closed system: yield, fruit quality, water and nutrient efficiency,Acta Scand 62 1 -6

[10] Gorbe , E., 2009.Study of nutrient solution management in soilless rose cultivation through the analysis of physiological parameters and nutrient absorption,PhD Dissertation -

[11] Gorbe , E.,A.Calatayud, 2010.Optimization of nutrition in soilless systems: a review,Adv. Bot. Res. 53 193 -245

[12] Islam , A.,D.G.Edwards,C.J.Asher, 1980.pH optima for crop growth,Plant Soil 54 339 -357

[13] Keltjens , W.G.,J.H.Nijenstein, 1987.Diurnal variations in uptake, transport and assimilation of NO3- and efflux of OH- in maize plants,J. Plant Nutr 10 887 -900

[14] Kim , H.J.,Y.S.Cho,O.K.Kwon,M.W.Cho,J.B.Hwang,W.T.Jeon,S.D.Bae, 2005.Effect of hydroponic solution pH on the growth of greenhouse rose,Asian J. Plant Sci. 4 17 -22

[15] Li , H., 2000.Principles and Techniques of Plant Physiological Biochemical Experiment, -

[16] Liu , C.W.,Y.Sung,B.C.Chen,H.Y.Lai, 2014.Effects of nitrogen fertilizers on the growth and nitrate content of lettuce (Lactuca sativa L.),Int. J. Environ. Res. Pub Heal 11 4427 -4440

[17] Lykas , C.,N.Katsoulas,P.Giaglaras,C.Kittas, 2006.Electrical conductivity and pH prediction in a recirculated nutrient solution of a greenhouse soilless rose crop,J. Plant Nutr 29 1585 -1599

[18] Massa , D.,L.Incrocci,R.Maggini,C.Bibbiani,G.Carmassi,F.Malorgio,A.Pardossi, 2011.Simulation of crop water and mineral relations in greenhouse soilless culture,Environ. Modell. Soft. 26 711 -722

[19] Murphy , J. and H.P.,Riley, 1962.A modified single solution method for the determination of phosphate in natural waters,Anal. Chim. Acta 27 31 -36

[20] Prasad , M.N.V.,M.Greger,T.Landberg, 2001.bark removes toxic elements from solution: corroboration from toxicity bioassay using Salix viminalis L. in hydroponic system,Int. J. Phytoremed. 3 289 -300

[21] Rius-Ruiz , F.X.,F.J.Andrade,J.Riu,F.X.Rius, 2014.Computeroperated analytical platform for the determination of nutrients in hydroponic systems,Food Chem 147 92 -97

[22] Roosta , H.R. and I. Rezaei, 2014.Effect of nutrient solution pH on the vegetative and reproductive growth and physiological characteristics of rose Cv. 'Grand Gala' in hydroponic system,J. Plant Nutr 37 2179 -2194

[23] Roosta , H.R., 2011.Interaction between water alkalinity and nutrient solution pH on the vegetative growth, chlorophyll fluorescence and leaf magnesium, iron, manganese, and zinc concentrations in lettuce,J. Plant Nutr 34 717 -731

[24] Savvas , D.,K.Adamidis, 1999.Automated management of nutrient solutions based on target electrical conductivity, pH and nutrient concentration ratios,J. Plant Nutr 22 1415 -1432

[25] Savvas , D.,H.C.Passam,C.Olympios,E.Nasi,E.Moustaka,N.Mantzos,P.Barouchas, 2006.Effects of ammonium nitrogen on lettuce grown on pumice in a closed hydroponic system,HortScience 41 1667 -1673

[26] Schubert , S.,E.Schubert,K.Mengel, 1990.Effect of low pH of the root medium on proton release, growth, and nutrient uptake of field beans (Vicia faba),Plant Soil 124 239 -244

[27] Shen , M.Z.,B.J.Zha,H.R.Dong,J.G.Li, 1982.Studies on nitrate accumulation in vegetable crops,Acta Hortic. Sin. 9 41 -48

[28] Spinu , V.C.,R.W.Langhans,L.D.Albright, 1997.Electrochemical pH control in hydroponic systems,Model. Plant Growth, Environ. Cont. Farm Manage. in Prot. Cultivation 456 275 -282

[29] Voogt , W. and C.,Sonneveld, 2009.The effects of Fe-chelate type and pH on substrate grown roses,Acta Hortic. 819 411 -417

[30] Wan , W. Y., W.,Cao and T.W.,Tibbitts, 1994.Tuber initiation in hydroponically grown potatoes by alteration of solution pH,HortScience 29 621 -623

[31] Wang , Z. and S.,Li, 2004.Effects of nitrogen and phosphorus fertilization on plant growth and nitrate accumulation in vegetables,J. Plant Nutr 27 539 -556

[32] Webb , M.J., 1993.A multichannel pH controller for solution culture systems,Plant Soil 155 501 -504

[33] Wheeler , R.M.,C.R.Hinkle,C.L.Mackowiak,J.C.Sager,W.M.Knott, 1990.Potato growth and yield using nutrient film technique (NFT),Amer. Potato 67 177 -187

[34] Yan , F., S.,Schubert and K.,Mengel, 1992.Effect of low root medium pH on net proton release, root respiration, and root growth of corn (Zea mays L.) and broad bean (Vicia faba L.) Plant Physiol, 99 415 -421

[35] Zribi , K.,M.Gharsalli, 2002.Effect of bicarbonate on growth and iron nutrition of pea,J. Plant Nutr 25 2143 -2149

Citations

Downloads

Views