Row Spacing and Fertilization Influences on Forage and Seed Yields of Intermediate Wheatgrass, Russian Wildrye, and Green Needlegrass on Dryland 1

1969 ◽  
Vol 61 (5) ◽  
pp. 801-805 ◽  
Author(s):  
A. L. Black ◽  
L. L. Reitz
Keyword(s):  
Row Spacing ◽  
Intermediate Wheatgrass ◽  
Russian Wildrye ◽  
Seed Yields

THE INFLUENCE OF NITROGEN FERTILIZER, ROW SPACING, AND IRRIGATION ON SEED YIELD OF NINE GRASSES IN CENTRAL SASKATCHEWAN

1966 ◽  
Vol 46 (4) ◽  
pp. 425-431 ◽  
Author(s):  
W. L. Crowle
Keyword(s):  
Seed Yield ◽  
Kentucky Bluegrass ◽  
Perennial Grasses ◽  
Yield Response ◽  
Row Spacing ◽  
Intermediate Wheatgrass ◽  
Red Fescue ◽  
Tall Wheatgrass ◽  
Slender Wheatgrass ◽  
Seed Yields

Nine perennial grasses were grown for seed under irrigation and dryland conditions using 3-ft and 1-ft row spacing, and with and without fertilizer. Grasses were quite specific in their seed yield response. All grasses benefited from irrigation, some more than others. Three-foot row spacings resulted in higher seed yields for crested wheatgrass, intermediate wheatgrass, tall wheatgrass, and Russian wild ryegrass for both dryland and irrigation. The 3-ft spacing gave reduced seed yields for creeping red fescue and Kentucky bluegrass for both irrigated and dryland conditions. Wide spacing benefited slender wheatgrass only on dryland. Fertilizer gave quite inconsistent responses, and for slender wheatgrass, creeping red fescue, and Kentucky bluegrass under dryland conditions, fertilizer caused a reduction in seed yields. Fertilizer resulted in reduced yields of tall wheatgrass when grown under irrigation.

Effects of defoliation and row spacing on intermediate wheatgrass II: Forage yield and economics

2020 ◽  
Vol 112 (3) ◽  
pp. 1862-1880
Author(s):  
Mitchell C. Hunter ◽  
Craig C. Sheaffer ◽  
Steven W. Culman ◽  
William F. Lazarus ◽  
Jacob M. Jungers
Keyword(s):  
Forage Yield ◽  
Row Spacing ◽  
Intermediate Wheatgrass

scholarly journals 'GRASSLANDS WANA' COCKSFOOT SEED PRODUCTION

1983 ◽  
pp. 24-29
Author(s):  
K.R. Brown ◽  
M.P. Rolston ◽  
W.J. Archie
Keyword(s):  
Weed Control ◽  
Seed Production ◽  
Dactylis Glomerata ◽  
Row Spacing ◽  
The North ◽  
Fertiliser Use ◽  
High Yields ◽  
Seed Yields

'Grasslands Wana' cocksfoot (Dactylis glomerata), a new cultivar, produced highest seed yields (405 kg/ha over three years) at 30 cm row spacing in Canterbury. Wider rows (45 and 60cm) produced more seed heads/m* but lower yields, whereas with 15 cm rows there were fewer seed heads and lower yields. In the Manawatu, Wana yields averaged 605 kg/ha over three years, although the North Island is not recognised as a cocksfoot seed producing area. Seed weights range from 0.65 to 0.85 g/l000 seeds, lighter than Apanui and Kara cocksfoots. With two autumn sowings, Wana produced 325 and 170 kg/ha 10 months after sowing. Controlling weeds, especially Poa annoa, is important for high yields from autumn sowings. Plots treated with ethofumesate yielded up to 7 times more than untreated plots. Management, fertiliser use, and rules for changing cocksfoot cultivars are discussed. Keywords: Dactylis glomerata, row spacing, weed control, ethofumesate, terbicil, nitrogen.

scholarly journals Impact of Row Spacing, Sowing Density and Nitrogen Fertilization on Yield and Quality Traits of chia (Salvia Hispanica L.) Cultivated in southwestern Germany

Agronomy ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 136 ◽  
Author(s):  
Samantha Grimes ◽  
Timothy Phillips ◽  
Filippo Capezzone ◽  
Simone Graeff-Hönninger
Keyword(s):  
Field Experiments ◽  
Seed Mass ◽  
N Fertilization ◽  
Row Spacing ◽  
Quality Traits ◽  
Yield And Quality ◽  
Chia Seed ◽  
Salvia Hispanica L ◽  
Growing Conditions ◽  
Seed Yields

To obtain high chia seed yields and seed qualities, a suitable crop management system needs to be developed for the given growing conditions in southwestern Germany. Field experiments were conducted at the experimental station Ihinger Hof in two consecutive years (2016, 2017). The study aimed to evaluate yield and quality traits of chia depending on different (i) row spacing (35, 50 and 75 cm), (ii) sowing densities (1, 1.5 and 2 kg ha−1) and, (iii) N-fertilization rates (0, 20 and 40 kg N ha−1). It consisted of three independent, completely randomized field experiments with three replications. Results showed that chia seed yields ranged from 618.39 to 1171.33 kg ha−1 and that a thousand seed mass of 1.14 to 1.24 g could be obtained. Crude protein-, crude oil- and mucilage contents varied from 18.11–23.91%, 32.16–33.78% and 10.00–13.74%, respectively. Results indicated that the year of cultivation and the accompanied environmental conditions, like precipitation or temperature, influenced the determined traits more than the applied agronomic practices. As average seed yields exceeded those obtained in the countries of origin (Mexico, Guatemala) while having comparable quality characteristics, chia holds great potential as an alternative crop for farmers in southwestern Germany.

EFFECT OF ROW SPACING ON BIOMASS PRODUCTION AND ABOVEGROUND HARVESTABILITY OF RUSSIAN WILDRYE

1990 ◽  
Vol 70 (2) ◽  
pp. 555-558 ◽  
Author(s):  
A.J. LEYSHON ◽  
H. CUTFORTH ◽  
J. WADOINGTON ◽  
P. C. RYMES
Keyword(s):  
Biomass Production ◽  
Dry Matter ◽  
Plant Morphology ◽  
Forage Yield ◽  
Row Spacing ◽  
The Third ◽  
Psathyrostachys Juncea ◽  
Russian Wildrye ◽  
Significant Yield

Russian wildrye (Psathyrostachys juncea [Fischer] Nevski) was grown in 15- and 60-cm row spacings at Swift Current, Saskatchewan. Beginning in the third year after establishment and continuing for 4 yr, dry matter yields taken by machine were compared to yields taken by hand in a two-cut system. The machine harvested 54% of the available dry matter in the 60-cm rows but only 27% in the 15-cm rows. Apart from one cut in 1 yr, there were no significant yield differences due to row spacing when the forage was harvested by hand. The results indicate the need for more research on the effects of row spacing, especially with regard to the grazing animal.Key words: Psathyrostachys juncea (Fischer) Nevski in Komarov, hand sampling, machine harvesting, plant morphology, forage yield

Productivity and sustainability of four grazed grass – alfalfa mixtures

1999 ◽  
Vol 79 (1) ◽  
pp. 83-89 ◽  
Author(s):  
N. W. Holt ◽  
P. G. Jefferson
Keyword(s):  
Medicago Sativa ◽  
Great Plains ◽  
Ground Cover ◽  
Forage Yield ◽  
Intermediate Wheatgrass ◽  
Bromus Riparius ◽  
Russian Wildrye ◽  
Medicago Sativa L ◽  
Meadow Bromegrass ◽  
Forage Yields

Forage grasses need to be evaluated in pasture trials in the Great Plains region of North America. The objective of this study was to compare four grass–alfalfa (Medicago sativa L.) mixtures for productivity and persistence when grazed during spring and summer. The grasses were Altai wildrye (Leymus angustus [Trin.] Pilger), intermediate wheatgrass (Elytrigia intermedia [Host] Nevski), meadow bromegrass (Bromus riparius Rehm. syn. B. biebersteinii Roem. & Schult.) and Russian wildrye (Psathyrostachys junceus [Fisch.] Nevski), with grass rows seeded perpendicular to the alfalfa rows. Two sites, 4 km apart, were grazed with yearling beef cattle from 1987 to 1993. Forage yield differed among grass treatments in 4 of 5 years, but differences were inconsistent over time. Five-year mean forage yields and total livestock production were not significantly different among the four grasses. Mean annual forage yields ranged from 800 to 8170 kg ha−1 and were related to the amount of growing season (April–August) precipitation. Carrying capacity ranged from 35 steer grazing days per hectare in 1992 to 176 in 1991. Grasses in the mixtures did have a significant effect on the grass–alfalfa ratio and on ground cover. Alfalfa content was highest when grown with Altai wildrye and lowest when grown with Russian wildrye. Percentage of ground cover by the grass plus alfalfa increased from an average of 3.8% in 1987 to 16.1% at one site and 31.9% at the second site by 1993. Russian wildrye contained the least alfalfa and weeds after 7 yr. Intermediate wheatgrass and Altai wildrye did not compete with invading weeds at one site, or with alfalfa at the other, and should not be recommended for spring–summer pastures in semiarid regions. Meadow bromegrass maintained a balance of grass and alfalfa and further research should confirm its persistence in semiarid climates. Key words: Leymus angustus, Elytrigia intermedia, Bromus riparius, Psathyrostachys junceus, Medicago sativa, grazing with cattle

scholarly journals Sowing parameters influenced on proso millet quality and yielding capacity

2019 ◽  
Vol 9 (4) ◽  
pp. 607-611
Author(s):  
S. Poltoretskyi ◽  
L. Riabovol ◽  
I. Diordiieva ◽  
S. I. Riabovol ◽  
A. Yatsenko
Keyword(s):  
Row Spacing ◽  
Panicum Miliaceum ◽  
Yielding Capacity ◽  
Proso Millet ◽  
Capacity Level ◽  
Wide Row Spacing ◽  
Seed Yields ◽  
Correlation Pleiades ◽  
Multiple Factor

The aim of the research is to define optimal sowing parameters that ensure the highest yielding capacity and high quality of the proso millet seeds (Panicum miliaceum L.). To achieve a stated goal we established and analyzed multiple-factor interrelations of the formation of highly productive seed sowing of the proso millet by improving sowing methods and sowing rates as well as conditions improving sowing qualities and yielding capacity of seeds with the application of correlation pleiades. We founded that deviation from the recommended sowing rates in production results in the decline of yielding capacity level. We also suggested that the deficit of seed material caused the highest shortfalls in seed yields compared to its over-expenditure; moreover, the seed planted with wide row spacing had the best yielding capacity, while sowing with row spacing of 15 cm and sowing rate at 3.5 million seeds/ha provided the its highest yielding capacity.

scholarly journals The Effect of Sowing Quantity and Row Spacing on Seed Production of Few Minor Grass Species

2014 ◽  
Vol 66 (1) ◽  
pp. 39-50 ◽  
Author(s):  
Danuta Martyniak ◽  
Grzegorz Żurek
Keyword(s):  
Seed Production ◽  
Field Experiments ◽  
Normal Values ◽  
Grass Species ◽  
Row Spacing ◽  
Buffer Zones ◽  
Wide Range ◽  
Area Unit ◽  
Seed Propagation ◽  
Seed Yields

Abstract A wide range of seed material from different grass species is necessary to keep high quality grasslands and to create buffer zones between arable lands and forest and to re-cultivate waste or fallow land. Therefore, the aim of our research was to describe elements of seed propagation of some minor grass species. On the basis of field experiments, different spacing and seed quantities were investigated for Beckmannia eruciformis, Cynosurus cristatus and Elytrigia elongata aiming at an optimal seed production. Satisfying seed yields were obtained even at a reduced (50% to 75%) amount of seed quantity, as compared to theoretical (or normal) values, calculated on the basis of number of plants per area unit.

Row spacing and seeding rates to optimize safflower yield on the Canadian prairies

1994 ◽  
Vol 74 (2) ◽  
pp. 319-321 ◽  
Author(s):  
H.-H. Mündel ◽  
R. J. Morrison ◽  
T. Entz ◽  
R. E. Blackshaw ◽  
B. T. Roth ◽  
...  
Keyword(s):  
Oil Content ◽  
Carthamus Tinctorius ◽  
Test Weight ◽  
Row Spacing ◽  
Seeding Rate ◽  
Canadian Prairies ◽  
Southern Alberta ◽  
Days To Maturity ◽  
Effect On Yield ◽  
Seed Yields

Nine experiments were conducted in Alberta and Manitoba between 1988 and 1991 to determine the effect of row spacing and seeding rates on safflower (Carthamus tinctorius L.) yield, oil content, test weight and maturity. Row spacings of 15 and 30 cm at Morden had little effect on yield, while in southern Alberta there was a tendency toward increased yields with narrow rows (23 cm) compared with wide rows (46 cm). Seeding rates of 32–40 kg ha−1 were required to obtain maximum seed yields. Oil content, test weight, and days to maturity were not consistently affected by row spacing or seeding rate. Key words:Carthamus, row spacings, seeding rates, yield, oil, test weight, maturity

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