Productivity of pasture species on Hill Country

Suckling, F. E. T.

doi:10.1080/00288233.1960.10426640

Cited by 34 publications

(18 citation statements)

References 1 publication

(1 reference statement)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…was higher than on the shaded side (Douglas et al , 2006a. Differences in botanical composition between sites with and without trees are smaller during summer (Wall 2006), mainly because the grass content declines, particularly in open pasture and during dry summers (Suckling 1960;Douglas et al 2006a;Wall 2006). Meanwhile the senescence of grasses is delayed with wet summers and under trees (Crowe and McAdam 1992b;Wall 2006).…”

Section: Botanical Compositionmentioning

confidence: 97%

Silvopastoralism in New Zealand: review of effects of evergreen and deciduous trees on pasture dynamics

2008

View full text Add to dashboard Cite

Complex interactions between livestock, trees and pasture occur in silvopastoral systems. Between trees and pasture, competition for soil resources (nutrients and water) occurs, becoming especially relevant when one of them is in scarce supply. Trees reduce light and water reaching the understorey layers according to tree density and canopy size. However, they may ameliorate extreme climatological features (reducing wind speed and evapotranspiration, and alleviating extreme temperatures), and improve soil properties, for example, deciduous tree litter may contribute to increased pH and soil nutrient concentrations. During tree establishment, there are generally negligible effects on pasture, irrespective of tree type. However, there is a decline in pasture production and nutritive value under shade with increasing tree age and higher stand density. Under the same conditions, deciduous trees affect pasture later (extinction point of pasture occurs at 85% of canopy closure) than evergreen trees (about 67% for Pinus radiata D. Don). This is mainly because deciduous trees have a leafless period that enables pasture recovery, and their litter smothers pasture less intensely because of its relatively fast decomposition. Silvopastoral studies conducted in New Zealand are reviewed to discuss these effects, and differences in the effects of evergreen and deciduous trees are shown using the examples of P. radiata, and Populus and Salix spp. respectively, which exist in many temperate countries. Future research needs are outlined.

show abstract

Section: Botanical Compositionmentioning

confidence: 97%

Silvopastoralism in New Zealand: review of effects of evergreen and deciduous trees on pasture dynamics

2008

View full text Add to dashboard Cite

show abstract

“…The results thus indicate BW550 biochar would provide an adequate supply of K, S and Mg to an 'average' corn crop at doses of 5, 6 and 7 t ha -1 , respectively. The nutrient requirement of an 'average' lotus crop yield of 11.5 t DM ha -1 y -1 (Suckling 1960) would need a biochar application of 7 t ha -1 to supply sufficient S and Mg, and 20 t ha -1 to meet the requirements for P and K. Moreover, the relatively high liming equivalence of the BW550 biochar (18.2% CaCO 3 -eq) means that this biochar would also alleviate soil acidity and Al toxicity.…”

Section: Biochar Classificationmentioning

confidence: 99%

Can biochar increase the bioavailability of phosphorus?

Shen

Hedley

Arbestain

et al. 2016

J. Soil Sci. Plant Nutr.

View full text Add to dashboard Cite

A large proportion of phosphate (P) fertilizer applied to Andosols reacts with reactive aluminum (Al) and iron (Fe) to become unavailable for plant uptake. We investigated whether biochar could enhance plant growth by (i) mobilizing soil P through changing soil pH or facilitating the growth of arbuscular mycorrhizal fungi (AMF), and/or (ii) introducing additional P. We grew Lotus pedunculatus cv barsille in two Andosols of contrasting P status amended with three biochars (with distinct porosity, nutrient and liming properties) at a dose of 10 t ha-1 for 32 weeks. The growth medium was divided into a root and a hyphal zone through a nylon mesh and a tephra layer that allowed the P in the hyphal zone to be transferred only by AMF hyphae. The addition of a relative nutrient-rich biochar (e.g. made from willow woodchips) with liming properties to the root zone of the P-deficient soil increased plant growth by 59% and P uptake by 73%. Pine-based biochar provided no extra nutrient acquisition and no plant-growth stimulation when added to the root zone of the Pdeficient soil. However, when hyphae of those plants had access to a P-rich soil patch, the presence of pine biochar in the soil patch greatly enhanced P uptake and plant growth (e.g., by 76% and 40% when using biochar produced at 450 o C compared to the absence of it). None of the tested biochars conferred advantages in the root zone of a high-P soil. We concluded that the benefits from biochar addition to nutrient uptake and plant growth are biochar-and soil-specific. Thus, biochars need to be tailored-made for certain soils by optimizing feedstock and pyrolysis conditions before application.

show abstract

“…Even after 1 year, the rapid decline in plant numbers of the earlymid season cultivars indicated their inability to reestablish a plant population in the Whatawhata environment. Although these results may provide some justification for previous cultivar recommendations in North Island hill country (Saxby 1956;Suckling 1966) they are specific for one site and sowing year. More importantly, this information should be viewed as a preliminary report on cultivar characteristics that precedes a wider based, more detailed evaluation of subclover cultivars currently in progress at 10 summer dry hill sites throughout New Zealand.…”

Section: Resultsmentioning

confidence: 82%

Morphology, flowering, and persistence of subterranean clover cultivars grown in North Island hill country: A preliminary note

Sheath¹,

Richardson²

1983

New Zealand Journal of Experimental Agriculture

View full text Add to dashboard Cite

Productivity of pasture species on Hill Country

Abstract: Twenty-seven pasture species were sown in plots on high-rainfall hill country. Annual and seasonal productions were measured by monthly herbage cuts over a period of three years. The results are discussed with reference to the usefulness of the species in hill pastures.N.Z. ]. agric. Res.

Cited by 34 publications

References 1 publication

Silvopastoralism in New Zealand: review of effects of evergreen and deciduous trees on pasture dynamics

Silvopastoralism in New Zealand: review of effects of evergreen and deciduous trees on pasture dynamics

Can biochar increase the bioavailability of phosphorus?

Morphology, flowering, and persistence of subterranean clover cultivars grown in North Island hill country: A preliminary note

Contact Info

Product

Resources

About