scholarly journals EFFECT OF SEEDING RATE AND REPEATED CUTTING ON THE GROWTH OF ALFALFA Medicago sativa AND CONTROLLING OF PARASITIC & NON PARASITIC WEEDS

2012 ◽  
Vol 40 (3) ◽  
pp. 276-285
Author(s):  
Salim H. Anter
Keyword(s):  
Medicago Sativa ◽  
Seeding Rate ◽  
Parasitic Weeds

Influence of the method of sowing and seeding rate on the yield of alfalfa in the south of Belarus

2020 ◽  
Author(s):  
Ol'ga Ptashec ◽  
Lyudmila Luchenok
Keyword(s):  
Medicago Sativa ◽  
The South ◽  
Seeding Rate ◽  
Peat Soils ◽  
Positive Correlation ◽  
Green Mass ◽  
Grass Stand

The results of studies on the influence of agrotechnological techniques on the productivity of alfalfa (Medicago sativa), cultivation on agro-peat soils in the south of Belarus were presented. It was established that the yield of green mass on average over 4 years of life was 393.6–517.9 c / ha when sown under cover and 494.3–629.8 centners ha-1 with coverless sowing. Productivity — 56.5–75.1 and 69.5–89.7 centners ha-1, respectively. A positive correlation between the increase in the yield and productivity of the grass stand with an rise in the seeding rate and doses of fertilizers applied was noted.

Establishment and productivity of cicer milkvetch (Astragalus cicer L.) in alfalfa (Medicago sativa L.) or alfalfa- hybrid bromegrass mixtures

2021 ◽  
Author(s):  
Allan Foster ◽  
Bill Biligetu
Keyword(s):  
Medicago Sativa ◽  
Aqueous Extract ◽  
Nutritive Value ◽  
Forage Yield ◽  
Allelopathic Effect ◽  
Limited Information ◽  
Seeding Rate ◽  
Bromus Riparius ◽  
Medicago Sativa L ◽  
Astragalus Cicer

Cicer milkvetch (Astragalus cicer L.) (CMV) is a non-bloating, perennial legume that has shown persistence under grazing. Limited information is available on its seedling establishment and subsequent forage yield and nutritive value in alfalfa (Medicago sativa L.) mixtures. Field plots were seeded in May 2013 at Melfort, SK, Canada to evaluate ‘Oxley II’ cicer milkvetch performance in ‘AC Grazeland’ alfalfa or alfalfa and ‘AC Success’ hybrid bromegrass (Bromus riparius × B. inermis) mixtures from 2014 to 2017. Two controlled environment tests were also conducted by treating seeds of CMV using alfalfa root aqueous extract. Seed germination and seedling height of CMV were significantly reduced in aqueous extract. In field, establishment of CMV in a mixture containing alfalfa was reduced, and CMV dry matter proportion in the mixture increased only 3.5% over three years. Increasing CMV seeding rate did not increase its DM percent in the mixtures, indicating a high allelopathic effect of alfalfa. Forage DM yield of all mixtures was linearly correlated to the proportion of alfalfa, and adding hybrid brome did not increase the DM yield. Forage DM yield was higher for the three-cut than the two-cut treatments for CMV-alfalfa mixtures, but there was no difference between the cutting frequency for CMV-alfalfa- hybrid brome mixtures. Fiber concentrations decreased linearly with increased CMV seeding rate in the mixtures. This study showed CMV establishment in alfalfa mixtures was reduced in a same row seeding, and the allelopathic effect was not reduced by lower alfalfa seeding rates or adding a grass.

Alfalfa (Medicago sativa)–Cheat (Bromus secalinus) Competition

Weed Science ◽  
1984 ◽  
Vol 32 (6) ◽  
pp. 751-756 ◽  
Author(s):  
David R. Pike ◽  
Jimmy F. Stritzke
Keyword(s):  
Medicago Sativa ◽  
Total Protein ◽  
Forage Quality ◽  
Protein Yield ◽  
Seeding Rate ◽  
Yield And Quality ◽  
Bromus Secalinus ◽  
Three Stages

A study was conducted at two locations to evaluate the effects of cheat (Bromus secalinusL. ♯3BROSE) competition on four seeding rates (4.5, 9.0, 13.5, and 22 kg/ha) of alfalfa (Medicago sativaL. ‘Riley’). Three stages of first harvest (early bud, early bloom, and late bloom) were imposed on fall-planted alfalfa, with and without cheat overseeding, to determine the effects of harvest stage on alfalfa yield and quality. Cheat infestations significantly decreased alfalfa production and forage quality. Increasing the seeding rate of alfalfa only partially offset these losses. Harvesting early helped minimize the effect of cheat competition. First-harvest protein yield of forage was significantly decreased by, cheat overseeding. Total protein yield at first harvest was not affected by cutting stage but did increase with the two higher seeding rates of alfalfa.

INFLUENCE DES CULTIVARS, DES DATES ET DES DOSES DE SEMIS SUR LE RENDEMENT ET LA QUALITÉ DE LA LUZERNE SEMÉE EN FIN D’ÉTÉ

1984 ◽  
Vol 64 (3) ◽  
pp. 667-675 ◽  
Author(s):  
L. BELZILE
Keyword(s):  
Medicago Sativa ◽  
Crude Protein ◽  
Dry Matter ◽  
First Year ◽  
Seeding Rate ◽  
Yield And Quality ◽  
Seeding Date ◽  
Yield Quality ◽  
Medicago Sativa L

The effects of cultivars, date and rate of seeding on the yield and quality of alfalfa (Medicago sativa L.) seeded at the end of summer and harvested the year after was studied from 1971 to 1975 on a Kamouraska clay. Seeding in early August gave the best results; seeding should not be carried out after mid-August. Differences between cultivars were more important on the third than on the first cut. Aftergrowth was an important factor on yield during the first year of harvest. Seeding rate did not always affect the yield, but the 6,7 kg/ha rate yielded less than the 13,4 kg/ha rate at the first cut and when the cuts were summed. The combined effects of the three factors studied indicates the importance of the seeding date on the height, cover and yield of alfalfa. Digestibility and crude protein content of the dry matter were affected more by seeding dates than by cultivars. The effect of cultivars on quality was variable and seeding rates had no effect. The variation in forage quality may be attributed to a difference in maturity of the plant at harvest, rather than only to the factors studied.Key words: Medicago sativa L., cultivar, date, rate, yield, quality

scholarly journals Effect of Row Spacing and Seeding Rate on Yield Component and Seed Yield of Alfalfa (Medicago sativa L.)

2010 ◽  
Vol 2 (1) ◽  
pp. 74-80 ◽  
Author(s):  
Gholamreza ABADOUZ ◽  
Abdollah HASANZADEH GORTTAPEH ◽  
Abdol Amir RAHNEMA ◽  
Adela BEHRADFAR
Keyword(s):  
Medicago Sativa ◽  
Seed Yield ◽  
Yield Component ◽  
Row Spacing ◽  
Seeding Rate ◽  
Medicago Sativa L

Effect of seeding rate and row spacing on the height of Medicago sativa plants

2019 ◽  
pp. 37-43
Author(s):  
H. I. Demydas ◽  
M. H. Kvytko
Keyword(s):  
Medicago Sativa ◽  
Plant Height ◽  
Geographical Origin ◽  
Growing Season ◽  
Row Spacing ◽  
Seeding Rate ◽  
The Third ◽  
Flowering Phase ◽  
Cultivation Technology ◽  
Second Year

The purpose of the research was to identify the influence of cultivation technology elements on the parameters of Medicago sativa plant height of different geographical origin. Methods. Field, measurement, statistical methods. Research results. Observations showed that in the year of sowing during the vegetation of Medicago sativa its stalks were stunted and ranged within 28.0—33.3 cm irrespective of the seeding rate, varietal features and row spacing. In the second year of life in the budding phase, the plant growth rates of the varieties maintained throughout the growing season, whereas in the early flowering phase, they varied according to mowing and had a sinusoidal nature. The intensity of growth processes in the third year of life changed and in the budding phase of Medicago sativa it remained stable only in the first-second mowing ranging within 61.3—69.3 cm, whereas in the third-fourth mowing the indicators decreased from 59.1 up to 44.5 cm, or 10.2—16.8 cm. In the flowering phase, plant height was the highest in the first mowing and reached 99.7—101.4 cm, which decreased to 55.2 in the second and third mowing to 59.6 cm, or by 39.5—41.8 cm, regardless of the factors studied. Conclusions. The tendency towards the decrease in plant height with reduction of row spacing to 12.5 cm and increase of seeding rate and its growth at row spacing of 25 cm was revealed. The sinusoidal nature of Medicago sativa formation according to mowing both between the varieties and row spacing was established.

Effect of sowing rate and sowing method on the establishment, yield and survival of irrigated lucerne at Kyabram, Victoria

1975 ◽  
Vol 15 (72) ◽  
pp. 64 ◽  
Author(s):  
A Roufail
Keyword(s):  
Medicago Sativa ◽  
Dry Matter ◽  
Plant Population ◽  
Dry Matter Production ◽  
Seeding Rate ◽  
Aerial Growth ◽  
Matter Production

Hunter River lucerne (Medicago sativa) was sown at 6.7, 9, 13.4, 17.9, 22.4 or 26.9 kg ha -1, broadcast or in 15, 30 or 45 cm rows under irrigation. Seeding rate did not affect dry matter production. There were no significant differences in dry matter production between sowing broadcast or in 15 cm rows, but 30 cm and 45 cm rows produced less dry matter than 15 cm rows (P < 0.01 ). Seeding rates and sowing methods affected the plant population, which affected the morphology of the roots and the aerial growth.

scholarly journals Production process and the yield of hay Medicago sativa l. of the first year of life in rice crop rotation

2019 ◽  
pp. 19-22
Author(s):  
Elvira Batyrevna Dedova ◽  
Galina Nagashevna Konieva ◽  
Bairta Borisovna Erdneeva
Keyword(s):  
Medicago Sativa ◽  
Crop Rotation ◽  
Maximum Yield ◽  
Rice Crop ◽  
First Year ◽  
Seeding Rate ◽  
Residual Moisture ◽  
Parabolic Form ◽  
Medicago Sativa L ◽  
First Year Of Life

The predecessors of rice, combined with their characteristic agricultural machinery, restore soil fertility, increase the yield of rice, provide forage products and as a result determine the productivity of the entire rotation of the crop rotation. In the rice crop rotations of the Sarpinsky lowland, studies are conducted to study the yield of alfalfa of the 1st year of life in the rice crop rotation on the reserves of productive moisture remaining after rice at different seeding rates. The soil cover of rice cheques is represented by brown semi-desert medium-and heavy-loamy soils in combination with saline. In the first year of the life of alfalfa (Medicago sativa L.) two residues of above-ground mass were obtained on residual moisture reserves (250–320 mm) after rice. The maximum yield of hay for two mowing 2.86-3.62 t/ha was obtained in the version with a seeding rate of 9.0 million pieces /ha, which is 0.86-1.21 t/ha more than the control option (5.0 million pcs/ha). It has been developed a dynamic model based on the yield of hay from alfalfa seeding rate seed having parabolic form with a maximum on top with a seeding rate of 9.0 million pcs/ha.

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