Effects of Liming on Grass Growth, Soil Solution Composition, and Microbial Activities

Hojito, Masayuki; Higashida, Shuji; Nishimune, A.; Takao, Kinya

doi:10.1080/00380768.1987.10557564

Cited by 10 publications

(13 citation statements)

References 12 publications

(10 reference statements)

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“…The increase in net N mineralisation attributable to lime has been associated with increased microbial activity (Edmeades et al 1981;Hojito et al 1987) rather than changes in microbial population numbers (Edmeades et al 1981). Although this increase has been associated with increased soil pH, Agarwal et al (1972) suggested that changes in Ca status in soils could also be important.…”

Section: Discussionmentioning

confidence: 99%

Investigation into the mechanisms causing lime responses in a grass/clover pasture on a clay loam soil

Wheeler

1998

New Zealand Journal of Agricultural Research

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A mowing trial was conducted on the Mangatea clay loam (a yellow-grey earth or Umbric Dystrochrept fine hallositic mesic) to examine the mechanisms causing lime responses in a grass/ clover pasture. The trial site was located on a sheep and beef farm 8 km south of Te Kuiti, New Zealand. The site generally had cool winters and warm moist summers, with an annual rainfall of about 1400 mm. The treatments consisted of 3 lime rates (0, 5000, 10 000 kg ha -1 ) in the absence of P and 6 lime rates (0, 1250, 2500, 5000, 7500, 10 000 kg ha -1 ) in the presence of P (50 kg P ha -1 yr -1 ), all in the presence of sodium molybdate (Mo), and an additional treatment where P was applied in the absence of lime and Mo. Lime increased grass yield but decreased clover yield for the first 2 years after application. In Years 3 and 4, the responsiveness of the grass decreased and that of clover increased. Lime increased net N mineralisation by up to 58 kg ha -1 , resulting in increased grass growth. Plant P uptake in both grass and clover also increased when lime was applied. However, yield responses were only seen in summer in clover when plant P concentrations in clover were less than 3.0 mg g -1 . The lime-induced increase in Mo availability would contribute to lime responses if basal Mo was not applied. Subsoil Al toxicity, particularly in summer, was limiting growth in some parts of the trial. However, there was no evidence that Mn toxicity was limiting yield, nor of any lime-induced trace nutrient deficiencies. Results from the application of P and Mo indicate that there was at least a 6-month delay in the transfer of N from clover to grass, with about 30% of the extra clover N uptake in Year 1 being transferred to extra N uptake in grass in Year 2.

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Section: Discussionmentioning

confidence: 99%

Investigation into the mechanisms causing lime responses in a grass/clover pasture on a clay loam soil

Wheeler

1998

New Zealand Journal of Agricultural Research

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“…The presence of an active microflora also influences carbon loss from plants grown in solution culture (Kraffczyk et al, 1984;Lee and Gaskins, 1982) and in soil (Martin and Kemp, 1986;Martin, 1977). Many chemical and biological properties of soil are strongly related to soil pH (Carter, 1986;Adams and Adams, 1983) as in plant growth (Hojito et al, 1987) and it may, therefore, be expected that soil pH will influence the pattern of carbon flow from plant roots. Frenzel (1960), and Lundegradh and Stenlid (1944), reported that the hydrogen ion concentration of the nutrient solution in which plants (sunflower, peas and wheat) were grown had little or no effect on root exudation.…”

Section: Introductionmentioning

confidence: 99%

The effect of soil pH on rhizosphere carbon flow of Lolium perenne

Meharg

Killham

1990

Plant Soil

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Perennial rye-grass plants were grown at 15°C in microcosms containing soil sampled from field plots that had been maintained at constant pH for the last 30 years. Six soil pH values were tested in the experiment, with pH ranging from 4.3-6.5. After 3 weeks growth in the microcosms, plant shoots were exposed to a pulse of 14C-CO~. The fate of this label was determined by monitoring 14C-CO2 respired by the plant roots/soil and by the shoots. The 14C remaining in plant roots and shoots was determined when the plants were harvested 7 days after receiving the pulse label.

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“…Another study carried out in our laboratory showed that top. dressing of lime increased grass production which implies microbial involvement in this process (16). Microbial activities also play an important role in the lower soil layers, in the decomposition of native organic matter and mineralization of plant nutrient elements.…”

Section: ------------------mentioning

confidence: 99%

“…Hence, a lower rate of decomposition prevents the utilization of these elements. Some researchers (16,18,20) observed that the mineralization of organic N was retarded in a soil with a low pH where microbial activities would be depressed. Fungal biomass was reported to exceed half of the total biomass of soil microorganisms (10).…”

Section: ------------------mentioning

confidence: 99%

“…In the 5 to 15 cm layers, soil pH, microbial substrates, and Ex.K are the factors which restrict soil microbial activities along with grassland age. Since topdressing of lime (16) or potassium (11) does not involve the lower layers, application of adequate amounts of lime as well as K or organic matter such as manure at the time of plowing is one of the possible means to enhance the microbial activities in the lower soil layers. So far, this study identified the factors which are responsible for soil microbial activities in grassland soil and provided the basic information for controlling them.…”

Section: ------------------mentioning

confidence: 99%

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