Changes in root morphology and physiology to limited phosphorus and moisture in a locally-selected cultivar and an introduced cultivar of Medicago sativa L. growing in alkaline soil

Fan, Jingchun; Du, Yan-Lei; Turner, Neil C.; Bing-Ru, Wang; Fang, Yan; Yang, Xi; Guo, Xiaoran; Li, Fengmin

doi:10.1007/s11104-015-2454-0

Cited by 49 publications

(35 citation statements)

References 34 publications

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“…We assume that it was due to the phosphorous 2006 0.1995 0.1957 0.1968 0.2024 0.1990 N60P100K80 0.2000 0.2004 0.1968 0.1943 0.2015 0.1986 N23P100K35* 0.2000 0.1966 0.1978 0.1965 0.1964 0.1975 N23P100K35** 0.2118 0.1945 0.1930 0.1966 0.1980 0.1988 N35P80K50 0.2000 0.1968 0.1944 0.1922 0.1953 0.1957 19820.19540.19630.1991 0.0019 0.0010 0.0007 0.0012 0.0012 *Nitrogen was applied 1/2 in first year of growing, 1/2 in third year and P and K supply, **Nitrogen was supplied pre-sowing, K supply, P by 1/3 in the first, second and third year of growing 18 *Nitrogen was applied 1/2 in first year of growing, 1/2 in third year and P and K supply, **Nitrogen was supplied pre-sowing, K supply, P by 1/3 in the first, second and third year of growing imported with fertilizer. Alfalfa plants supplied with phosphorus showed better nodulating ability according to Vasileva and Pachev (2009) and higher dry mass productivity according to Fan et al (2015).…”

Section: Resultsmentioning

confidence: 98%

Root Mass Accumulation after Different Fertilization and Soil Cultivation of Alfalfa (Medicago sativa L.)

Vasileva¹,

Pachev²

2015

J. of Applied Sciences

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Effect of mineral fertilization and soil cultivation practices on root mass accumulation of alfalfa was studied. Field trial was conducted in the Institute of Forage Crops, Pleven, Bulgaria on leached chernozem subsoil type and no irrigation. The next treatments were tested: (1) For fertilization as follows: N0P0K0 (control), N60P100K80 (an accepted technology), N23P100K35 (nitrogen was applied 1/2 in first year of growing, 1/2 in third year), N23P100K35 (nitrogen was supplied pre-sowing), N35P80K50 and Аmophose, calculated at fertilizing rates N27P120K0 and (2) For soil cultivation as follows: soil loosing 10-12 cm, plough at depth 12-15 and 22-24 cm (an accepted technology), 18-22 and 30-35 cm. It was found that alfalfa plants accumulated the biggest amount of dry root mass (4550 kg haG 1) at the plough at the depth of 18-22 and fertilization at N35P80K50. Supplying of plants with an initial amount of nitrogen was essential for the root mass formation in shallow soil cultivation practices. Both, mineral fertilization and soil cultivation had effect on root mass accumulation of alfalfa.

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Section: Resultsmentioning

confidence: 98%

Root Mass Accumulation after Different Fertilization and Soil Cultivation of Alfalfa (Medicago sativa L.)

Vasileva¹,

Pachev²

2015

J. of Applied Sciences

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“…Symbiotic nitrogen fixation takes place in highly differentiated nodules formed after the interaction of Rhizobia with the host plant (Serraj et al, 1999). The duration of their life cycle is essential for the normal functioning and it varies depending on various factors (Milev, 2014;Jing-Wei Fan, 2015).…”

Section: Resultsmentioning

confidence: 99%

“…Many factors influence nodulation, but phosphorus has a major role because of its importance in the formation of the root system (Jing-Wei Fan, 2015). This element plays a key role in the number, size and activity of nodules.…”

Section: Introductionmentioning

confidence: 99%

Studies on Nodulating Capacity of Some Forage Legumes Grown Alone or in Mixtures

Vasileva

Athar

2018

Planta daninha

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-A pot experiment was conducted to study the nodulating capacity of some forage legumes. Birdsfoot trefoil (Lotus corniculatus L), sainfoin (Onobrychis viciifolia Scop.) and subterranean clover (Trifolium subterraneum L.) were grown in pure culture (100%) and in mixtures with tall fescue (Festuca arundinacea Schreb.) in the ratios: birdsfoot trefoil + tall fescue (50:50%); sainfoin + tall fescue (50:50%); subterranean clover + tall fescue (50:50%); birdsfoot trefoil + subterranean clover + tall fescue (33:33:33%); sainfoin + subterranean clover + tall fescue (33:33:33%). Birdsfoot trefoil from the crops cultivated in pure stands showed the highest nodulation rating (31), followed by sainfoin (26) Palavras-chave: eficiência do uso de fósforo, sanfeno, trevo-subterrâneo, festucaalta, cultivo isolado ou em combinação.

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“…If the root : shoot biomass ratio is known, the root biomass and root carbon accumulated in the soil can be estimated from the aboveground biomass and compared with the changes in SOC over the same period. Using an average root : shoot ratio of 0.77 : 1 in the three species (Chen and Nie, 1978;Cheng et al, 2004;Fan et al, 2015;Sun et al, 2001), the 91 t ha −1 of aboveground biomass (43 Mg C ha −1 ) produced over the 7-year life of the alfalfa pasture would result in the production of 70 t ha −1 of root biomass or 33 Mg C ha −1 of root carbon, significantly higher than the measured increase in SOC stock in the upper 2 m of the soil of 24 Mg C ha −1 . Similarly, using an aboveground biomass of 56 t ha −1 , the estimated production of root biomass by milk vetch would be 43 t ha −1 and the estimated root carbon would be 20 Mg C ha −1 , also higher than the increase of 15 Mg C ha −1 in SOC stock measured under milk vetch.…”

Section: Discussionmentioning

confidence: 99%

Soil carbon sequestration by three perennial legume pastures is greater in deeper soil layers than in the surface soil

et al. 2016

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Abstract. Soil organic carbon (SOC) plays a vital role as both a sink for and source of atmospheric carbon. Revegetation of degraded arable land in China is expected to increase soil carbon sequestration, but the role of perennial legumes on soil carbon stocks in semiarid areas has not been quantified. In this study, we assessed the effect of alfalfa (Medicago sativa L.) and two locally adapted forage legumes, bush clover (Lespedeza davurica S.) and milk vetch (Astragalus adsurgens Pall.) on the SOC concentration and SOC stock accumulated annually over a 2 m soil profile. The results showed that the concentration of SOC in the bare soil decreased slightly over the 7 years, while 7 years of legume growth substantially increased the concentration of SOC over the 0-2.0 m soil depth. Over the 7-year growth period the SOC stocks increased by 24.1, 19.9 and 14.6 Mg C ha −1 under the alfalfa, bush clover and milk vetch stands, respectively, and decreased by 4.2 Mg C ha −1 in the bare soil. The sequestration of SOC in the 1-2 m depth of the soil accounted for 79, 68 and 74 % of the SOC sequestered in the 2 m deep soil profile under alfalfa, bush clover and milk vetch, respectively. Conversion of arable land to perennial legume pasture resulted in a significant increase in SOC, particularly at soil depths below 1 m.

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Changes in root morphology and physiology to limited phosphorus and moisture in a locally-selected cultivar and an introduced cultivar of Medicago sativa L. growing in alkaline soil

Cited by 49 publications

References 34 publications

Root Mass Accumulation after Different Fertilization and Soil Cultivation of Alfalfa (Medicago sativa L.)

Root Mass Accumulation after Different Fertilization and Soil Cultivation of Alfalfa (Medicago sativa L.)

Studies on Nodulating Capacity of Some Forage Legumes Grown Alone or in Mixtures

Soil carbon sequestration by three perennial legume pastures is greater in deeper soil layers than in the surface soil

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