Forage production and steer performance in fertilized smooth bromegrass and smooth bromegrass‐legume pastures

Regrowth and production of tillers in smooth bromegrass (Bromus inermis Leyss.) following defoliation to a 5-cm stubble height were monitored throughout the summer and in early spring the following year in central Saskatchewan. After defoliation, while smooth bromegrass was vegetative, forage began accumulating in 45–75 growingdegree-days (GDD) when moisture was favorable. Regrowth ranged from 34 to 84 g m−2. Plants also produced ≤ 51 g m−2 of regrowth when defoliated at or before culm elongation in a year with above-average precipitation. In two dry years, regrowth was minimal and plants did not regrow after defoliation in the later vegetative growth stages; however, new leaves were produced within 110–140 GDD. Following defoliation at early vegetative growth stages, 1030–1180 GDD were needed to reach maximum regrowth. Total annual production was either unaffected or reduced by defoliation. Total annual production ranged from 35 to 139 g m−2, with yields lowest when defoliated in early May or early June and highest when herbage was removed in mid-May or near flowering and seed production. When plants were defoliated during vegetative growth most tillers were produced the following spring, whereas when plants were defoliated during reproductive phases the majority of tillers emerged in the fall. The year after defoliation, the density of tillers (871–951 m−2) was not significantly different among treatments. Regrowth following defoliation cannot be related to a particular growth stage, but rather it depends on growing conditions. If smooth bromegrass is defoliated once and rested until the next year, it should be recovered by early spring and its productivity should be unaffected. Key words: Etiolated growth, forage production, grazing management, regrowth, rest requirement, tillering

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Impact of Harvest Management on Forage Production and Nutrient Removal by Smooth Bromegrass on a Vegetated Treatment Area

American Journal of Plant Sciences ◽

10.4236/ajps.2015.69154 ◽

2015 ◽

Vol 06 (09) ◽

pp. 1550-1559

Author(s):

R. Martine Similien ◽

Todd P. Trooien ◽

Jixiang Wu ◽

Arvid Boe

Keyword(s):

Nutrient Removal ◽

Harvest Management ◽

Forage Production ◽

Treatment Area ◽

Smooth Bromegrass

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DEVELOPMENT AND PLACEMENT OF FORAGE PRODUCTION FOR DAIRY CATTLE BREEDING IN THE RUSSIAN FEDERATION

Экономика сельского хозяйства России ◽

10.32651/2070-0288-2017-4-79-86 ◽

2017 ◽

pp. 79-86

Author(s):

L. Silayeva ◽

S.A. Alekseev ◽

A.S. Didyk

Keyword(s):

Dairy Cattle ◽

Russian Federation ◽

Forage Production ◽

Cattle Breeding ◽

Dairy Cattle Breeding ◽

The Russian Federation

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Potensi Covercrop Kebun Sawit Sebagai Sumber Pakan Hijauan Ternak Ruminansia Pada Musim Kemarau di Pelalawan, Riau

Jurnal Sains dan Teknologi Indonesia ◽

10.29122/jsti.v17i1.3421 ◽

2019 ◽

Vol 17 (1) ◽

Author(s):

Ruslan A. Gopar ◽

S. Martono ◽

Muhamad N. Rofiq ◽

Windu N.

Keyword(s):

Cover Crops ◽

Oil Palm ◽

Dry Matter ◽

Sampling Method ◽

Dry Season ◽

Forage Production ◽

Destructive Sampling ◽

Matter Production ◽

Ruminant Animals ◽

Line Intercept

The objective of this experiment was to obtain forage/ cover crops productivity and carrying capacity for ruminant animals in Pelalawan Regency, Riau in the dry season. Data were collected from civil palm oil plantations at the aged 7, 10 and 14 years in the end of dry season with a destructive sampling method. Sampling used line intercept method which every hectare were picked 10 points by using a pair of 1 m2 sized quadrant. The result showed that the number of vegetations/ cover crops in oil palm plantations aged 7, 10 and 14 years was 42 types.The proportion of forage which consist grass, legume and ferns was diverse at each age of oil palm plantations. Forage production under oil palm plantations aged 7, 10 and 14 years were 2,571 kg/ha, 1479.76 kg/ha and 1417.22 kg/ha as fed and amounted to 811.41 kg/ ha, 471, 15 kg/ ha and 456.91 kg/ ha in the dry matter production. Average carrying capacities of oil palm plantations aged 7, 10 and 14 years was 0.36 Animal units (AU)/ha/year, 0.21 AU/ha/year and 0.20 AU/ ha/year.Penelitian ini bertujuan untuk mengetahui potensi jumlah covercrop dan kapasitas tampungnya di kebun sawit sebagai sumber pakan hijauan ruminansia pada musim kemarau di kabupaten Pelalawan, Riau. Pengambilan data dilakukan di perkebunan kelapa sawit yang berumur 7, 10 dan 14 tahun milik rakyat pada akhir musim kemarau. Pengambilan sampel dengan destructive sampling method menggunakan metode garis berpetak memakai kuadran berukuran 1m2 dengan jumlah sampel tiap area sebanyak 10 titik. Berdasar hasil pengukuran diperoleh hasil jumlah vegetasi/ covercrop yang ada di kebun sawit berumur 7, 10 dan 14 tahun sebanyak 42 jenis yang bervariasi tiap umur tanaman sawit. Proporsi hijauan yang ada meliputi jenis rumput, legume dan paku-pakuan bervariasi pada tiap umur kebun sawit. Produksi hijauan yang ada di bawah kebun sawit berumur 7, 10 dan 14 tahun berturut-turut 2.571 kg/ha, 1.479,76 kg/ha dan 1.417,22 kg/ha dalam bentuk segar serta sebesar 811,41 kg/ha, 471,15 kg/ha dan 456,91 kg/ha dalam bahan kering. Kapasitas tampung dari kebun sawit berumur 7, 10 dan 14 tahun adalah 0,36 satuan ternak (ST)/ha, 0,21 ST/ha dan 0,20 ST/ha.Keywords: cover crops, oil palm plantation, forage, ruminant, dry season, Pelalawan

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