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2 edition of effect of defoliation and nitrogen application on the seed yield of Linn perennial ryegrass (Lolium perenne L) and Merion Kentucky bluegrass (Poa pratensis L) found in the catalog.

effect of defoliation and nitrogen application on the seed yield of Linn perennial ryegrass (Lolium perenne L) and Merion Kentucky bluegrass (Poa pratensis L)

Matthew William Mulanax

effect of defoliation and nitrogen application on the seed yield of Linn perennial ryegrass (Lolium perenne L) and Merion Kentucky bluegrass (Poa pratensis L)

by Matthew William Mulanax

  • 359 Want to read
  • 22 Currently reading

Published .
Written in English

    Subjects:
  • Grasses -- Seeds.

  • Edition Notes

    Statementby Matthew William Mulanax.
    The Physical Object
    Pagination[6], 59 leaves, bound ;
    Number of Pages59
    ID Numbers
    Open LibraryOL14241449M

    RYEGRASS FOR TURF Annual Ryegrass Perennial Ryegrass RYEGRASS FOR COVERCROPS Managment Recommendations Quick Guide Seed Source Herbicide Carryover Concerns in Cover Crops Successful Termination of Annual Ryegrass with Herbicides - Purdue University Extension Cereal vs Ryegrass Benefits of Ryegrass as a Cover Crop. Farmer Success Stories. The present study was therefore designed to obtain information, under New Zealand conditions, on the effect of relating applications of nitrogen fertiliser to two distinctive stages of reproductive development of New Zealand Grassland's Ruanui perennial ryegrass (Lolium perenne L.) grown as a specialist crop for the production of seed.

      For every unit of N applied, N increased biomass by 4 to 25 kg ha −1, fertile tillers by tillers m −2, and seed yield by up to kg seed ha −1, depending on environment. The and kg PLS ha −1 SRs combined with the cm RSW, ha −1 N rate, and other management factors, nearly eliminated weeds . A WEED REPORT from the book Weed Control in Natural Areas in the Western United States Italian and perennial ryegrass. Cultural. The ryegrasses are a preferred forage species, and grazing has not been shown to be an effective control method without causing File Size: KB.

    The nitrogen content of perennial ryegrass pasture depends on soil nitrogen availability and is adequate if plant nitrogen exceeds %. Pasture nitrogen content may be more than 5% if perennial ryegrass is heavily fertilised with nitrogen or in a mixture with white clover. Perennial ryegrass can grow without nitrogen fertiliser ifFile Size: KB. Perennial ryegrass definition is - a European perennial grass (Lolium perenne) with erect culms and spikelets borne in a zigzag spike that is widely cultivated for pasture and hay and as a lawn grass —called also English ryegrass.


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Effect of defoliation and nitrogen application on the seed yield of Linn perennial ryegrass (Lolium perenne L) and Merion Kentucky bluegrass (Poa pratensis L) by Matthew William Mulanax Download PDF EPUB FB2

The effect of clipping and supplemental nitrogen application on seed production of Linn perennial ryegrass and Merion Kentucky bluegrass was studied.

Clipping and nitrogen treatments did not significantly affect the seed yield of Linn perennial ryegrass during the growing by: 2.

PDF | Applying nitrogen (N) as urea in the autumn only, or with the application split between autumn and spring, reduced the seed yield of Lolium | Find, read and cite all the research you need.

g gen application. Over the total winter period, nitrogen as a main effect gave yield increases of kg/ha dry matter, representing a response of kg DM/ha/kg N. There was no difference in yield between the two methods of defoliation as a main treatment effect but they did interact with time of nitrogen application, as will be described later.

Effects of increasing rates of nitrogen (N) and sulphur (S) fertilizers on the yield, digestibility, and composition of N, S, and amino acid of perennial ryegrass (Lolium perenne L.) was studied in a pot experiment using an under-developed S-responsive (Harvey) and a developed non-S responsive (Gorge) soil.

Ryegrass plants responded significantly to both N and S fertilization in Cited by: Perennial ryegrass responds rapidly to fertilization. Its principal nutrient is nitrogen, which is normally applied at the rate of pounds per acre.

Under some circumstances potash and phosphorous will bring good response in some areas. Germination of Perennial Ryegrass Seed. A very rapid starter, perennial ryegrass will normally germinate.

The effect strategic nitrogen application and defoliation systems on the productivity of a perennial ryegrass/while clover sward Article in Grass and Forage Science 42(3) - April The nitrogen supply plays an important role in achieving quality characteristics in organic potato farming.

Different defoliation systems of ryegrass–clover may influence the amount of fixed nitrogen available to the tubers. In a field experiment, the effect of different defoliation systems (cutting, mulching and a combination of them) of the pre-crop ryegrass–clover on selected quality.

Planting Perennial Ryegrass For Pasture & Hay. For pasture grass the Tetraploid (four chromosomes) varieties of forage ryegrasses are preferred, over the diploid (two chromosomes) as they yield higher rates of production in cool season areas and are more disease plant perennial ryegrass in a pasture use the following recommendations.

Predicting nitrogen requirement in perennial ryegrass seed crops (M.P. Rolston et al.) 61 had a mineral N ( cm) value of 33 kg/ha and a total optimum N of kg/ha. For the 17 trials the average total optimum N value was kg N/ha (Table 1). The choice of model to predict optimum N has a large influence on the prediction value.

The nitrogen supply plays an important role in achieving quality characteristics in organic potato farming. Different defoliation systems of ryegrass–clover may influence the amount of fixed nitrogen available to the tubers. In a field experiment, the effect of different defoliation systems (cutting, mulching and a combination of them) of the pre-crop ryegrass–clover on selected quality Cited by: 1.

Increased stocking rates on dairy farms in western Victoria and tighter calving patterns have increased demand for additional feed from pasture, particularly during late winter and autumn.

Field experiments were conducted at two sites to study the effects of time and rate of nitrogen (N) application from autumn to midwinter on perennial ryegrass- white clover pasture dry matter (DM) yield and. Lolium perenne, common name perennial ryegrass, English ryegrass, winter ryegrass, or ray grass, is a grass from the family Poaceae.

It is native to Europe, Asia and northern Africa, but is widely cultivated and naturalised around the world. The plant is a low-growing, tufted, hairless grass, with a bunching (or tillering) growth : Tracheophytes.

Perennial ryegrass is grown for turf or forage seed on a broad range of soils in western Oregon. All perennial ryegrass varieties are similar in their nutrient requirements. Typical seed yield is between 1, and 1, lb/acre.

Higher seed yields (up to 2, lb/acre) may be produced on better soils, but higher yields do not require addi. A field study was undertaken to determine the response of perennial ryegrass (Lolium perenne L.) dominant swards to defoliation severity over repeated defoliations during a period of low water-soluble carbohydrate (WSC) accumulation (late spring to mid-autumn due to active leaf growth and relatively high respiration).

Five defoliation. Abstract This field study investigated the effect of timing of nitrogen (N) fertilizer application in spring on the survival of grazed perennial ryegrass (Lolium perenne cv. Dobson and Yatsyn) over summer in a subtropical environment.

There were five N fertilizer treatments: no applied N, 46 kg N ha−1 on 22 October or 22 November or 22 December, or on 22 October and again on 22. Agronomy New Zeal 61 Stem length and perennial ryegrass seed yield Reduced stem length increases perennial ryegrass seed yield R.J.

Chynoweth1, J.A.K. Trethewey2, M.P. Rolston2 and B.L. McCloy3 1Foundation for Arable Research, PO BoxTempletonNew Zealand 2AgResearch Lincoln Research Centre, Private BagChristchurchNew Zealand. the effect of temperature on the growth and composition of the stubble and roots of perennial ryegrass 1.

j the growth and carbohydrate responses of agropyron smithii and bouteloua gracilis to changes in nitrogen supply. sullivan jt, sprague vg. composition of the roots and stubble of perennial ryegrass following partial defoliation. Cited by: ANNUAL RYEGRASS Two ryegrass species are of great importance in forage/livestock production; annual ryegrass (Lolium multiflorum Lam.) and perennial ryegrass (Lolium perenne L.).Both species are easy to establish, versatile in how they can be used and adapted on a wide range of soil types.

Cool season grasses such as Annual and Perennial Ryegrass, grow best when the soil temperatures are between 50 and 65 degrees F. These temperatures usually occur when the daytime air temperatures are between 60 and 75 degrees.

High temperatures of summer can cause these plants to go dormant and thus planting during summer is asking for problems. ASPGL is a new, elite perennial ryegrass variety developed to provide increased resistance to Gray LeafmSpot disease.

In addition to Gray Leaf Spot, ASPGL has also been screened for Brown Patch, Pythium and Rust disease complex resistance resulting in a complete disease package. The application of autumn applied N fertiliser contributed both directly (¹⁵N) and indirectly (increased soil derived N mineralisation) to leaching losses which has importance in the overall environmental impact of a ryegrass seed production system.

Seed yield ( g m⁻² in and g m⁻² in ) and seed quality (thousand.ELSEVIER European Journal of Agronomy European Journal of Agronomy 6 () Changes induced by defoliation in the yield and digestibility of leaves and stems of perennial ryegrass (Lolium perenne L.) during reproductive development T.J.

Gilliland * Department of Agriculture for Northern Ireland, Plant Testing Station, 50 Houston Road, Crossnacreevy, Belfast, BT6 9SH, UK Accepted 25 Cited by: 5.Six nitrogen (N) rates were compared with and without trinexapac-ethyl (Moddus®) plant growth regulator in adjacent dryland and irrigated blocks of perennial ryegrass.

There was a large positive response to Moddus with an average seed yield increase of and kg seed ha-1 for dryland and irrigated crops respectively.

Moddus increased the optimum N rate for a biological response from 50 to Cited by: 8.