Tag Archives: forage quality

1188–1194 A. Valge, A. Sukhoparov and E. Papushin
Strategic planning of grass forage production in North-West Russia
Abstract |
Full text PDF (91 KB)

Strategic planning of grass forage production in North-West Russia

A. Valge, A. Sukhoparov and E. Papushin*

Federal Scientific Agroengineering Center VIM, branch in Saint Petersburg, Filtrovskoje Shosse 3, p.o. Tiarlevo, RU196625 Saint Petersburg, Russia
*Correspondence: papushinea@yandex.ru

Abstract:

Energy and nutritional value of harvested forage rely heavily on grass vegetative phase and harvesting time. The study aimed to identify rational forage harvesting options in terms of harvesting time. The data for modelling were taken from the literature based on the results of many years’ research. The mathematical models of variation of grass mass and quality depending on days after emergence were created. The possible options of two-step harvesting of forage grass (cocksfoot, Dactylis glomerata) were considered using mathematical methods of nonlinear programming: (1) obtaining maximum hay mass with maximum feed units from specified area of 400 ha and maximum forage yield at full flowering of 15.0 t ha-1; and (2) identifying the harvesting timing and area to obtain the required amount of hay (2,500 t) with a target nutrient content (1,200 feed units). Problem 1 solution was harvesting 1 scheduled for the 45th day after emergence at full earing on 170 ha; harvesting 2 scheduled for the 69th day after emergence at full flowering on 230 ha. In this case, 2,066.5 t of hay with 947 feed units would be obtained. Problem 2 solution was harvesting 1 scheduled for the 43th day after emergence at middle earing on 250 ha; harvesting 2 scheduled for the 65th day after emergence at early flowering on 156 ha. The created models can be effectively applied for forage harvesting in any grassland area required and in any regions.

Key words:

, , , , , ,



2568-2580 H.S.A. Salama and H.H. Badry
Effect of partial substitution of bulk urea by nanoparticle urea fertilizer on productivity and nutritive value of teosinte varieties
Abstract |
Full text PDF (443 KB)

Effect of partial substitution of bulk urea by nanoparticle urea fertilizer on productivity and nutritive value of teosinte varieties

H.S.A. Salama¹* and H.H. Badry²

¹Crop Science Department, Faculty of Agriculture, Alexandria University, Aflaton street, El-Shatby, EG21545 Alexandria, Egypt
²Soil and Water Science Department, Faculty of Agriculture, Alexandria University, Aflaton street, El-Shatby, EG21545 Alexandria, Egypt
*Correspondence: heba.salama@alexu.edu.eg

Abstract:

The integration of nanoparticle urea (NPU) in the fertilization scheme of forage crops with high nutrients’ requirements, like teosinte (Zea mexicana L.), would help avoiding the environmental implications associated with the application of high rates of conventional bulk urea (BU), while not depriving the plant from its benefits. The effects of fertilization treatments composed of different percentages of NPU and/or BU, on yield, agronomic characteristics and quality attributes of three cuts of two teosinte local varieties were investigated in a split-split plot design during summers of 2018 and 2019. In general, the application of 50% NPU + 50% BU was similar to 100% BU in the production of highest amount of fresh yield, with the highest values for plant height and stem diameter, in addition to appreciable nutritive value, in terms of high crude protein (66.10 g kg-1) and non-fiber carbohydrates (NFC), and low acid-detergent fiber (284.09 g kg-1) and crude fat (36.97 g kg-1) contents. While the 1st cut was characterized by the highest plant height (58.74 cm in average), stem diameter (7.64 mm in average) and leaf area (130.07 m2 in average), the 3rd cut produced the highest amount of fresh yield (39.68 t ha-1 in average). Variations in quality measures among the three cuts were almost non-significant. Variations in yield and quality were detected between the two tested local varieties. In conclusion, the combined application of 50% NPU with 50% BU is recommended for the production of fodder teosinte in similar environments.

Key words:

, , , ,



779–782 A. Ince, Y. Vurarak and S.M. Say
An approach for determination of quality in hay bale and haylage
Abstract |
Full text PDF (179 KB)

An approach for determination of quality in hay bale and haylage

A. Ince¹*, Y. Vurarak² and S.M. Say³

¹Çukurova University, Faculty of Agriculture, Agricultural Machinery and Technologies Engineering Department, TR 01330 Balcali-Adana, Turkey
²Eastern Mediterranean Agricultural Research Institute, P. Box: 45 Adana, Turkey
³Çukurova University, Faculty of Agriculture, Agricultural Machinery and Technologies Engineering Department, TR 01330 Balcali-Adana, Turkey
*Correspondence: aince@cu.edu.tr

Abstract:

 In this study, a new approach for faster determination of quality in hay bale and haylage was aimed. To this end, the relationships between bale densities, dry matter (DM), pH content and penetrometer values in hay bale and haylage were investigated. The mixture of caramba (Lolium multiform cv Caramba) and berseem clover (Trifolium alexandrinum L) was used as forage material. It was harvested by using two different harvesting methods and stored as dry hay and haylage. The penetrometer values were measured at four different points on bales. It was obtained that the pH content decreased with increase in bale density (R2 = 0.86) and with decrease in DM content (R2 = 0.86). The values measured at vertical-middle point gave higher correlation with density and pH contents.

Key words:

, , ,



563-572 B. Jansone, S. Rancane, P. Berzins, V. Stesele and A. Jansons
Evaluation of perennial grass mixtures of different species and varieties in the central part of Latvia introduced from other European countries
Abstract |
Full text PDF (74 KB)

Evaluation of perennial grass mixtures of different species and varieties in the central part of Latvia introduced from other European countries

B. Jansone, S. Rancane, P. Berzins, V. Stesele and A. Jansons

LUA Research Institute of Agriculture, 7 Zemkopibas instituts, Skriveri, Skriveruregion, Latvia, LV-5125;e-mail: sarmite.rancane@inbox.lv

Abstract:

Forage grasses growing in the wild and cultivated in fields represent many species with various properties. Scientists at the LUA Research Institute of Agriculture have for many years performed purposeful breeding work with the aim of originating new, highly productive cultivars of different grassland species with good forage quality suitable for growing under Latvia’s climatic conditions, as well as being competitive in the EU countries. A field trial was sown in 2007 to evaluate our new cultivars in the poly-component mixtures with diploid and tetraploid varieties of forage grasses and mixtures offered by other companies and countries. Twenty-two multiform grassland mixtures for cutting and pastures were compared. The test results proved that it is possible to obtain two full cuttings from these mixtures in the sowing year under good climatic conditions; the most productive mixtures yielded 8 t ha-1 DM and more. In the first year, with three cuts, DM yields ranged within 8.89–16.11 t ha-1 the highest DM yields were obtained from mixtures with the newest perennial grass cultivars of the Research Institute. The average DM yields for better swards (SK-1, SK-2, SK-3, P/2) were above 10 t ha-1 in three years. The mixtures with white clover and rhizomatous low grasses proved to be most winter-hardy. The highest protein content and digestibility in the first year of use were the characteristic features of cutting mixtures SK-5 and P/1, but in the second year, it was found in mixtures for grazing Dot-21, Dot-24, SK-6 and G-2.

Key words:

, , , ,