CHANGES IN ENERGY AND PROTEIN VALUE OF THE FORAGE BIOMASS IN DECADES ON A NATURAL MEADOW IN THE RHODOPE MOUNTAINS (SOUTHERN BULGARIA) AND POSSIBILITIES OF THEIR PREDICTION
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2011, Vol 2, Issue 9
Abstract
The purpose of this study was to establish the changes in energy and protein value of the forage biomass in decades of vegetation of a natural meadow Agrostis capillaris-Festuca fallax type in the Rhodope Mountains (Smolyan region, Southern Bulgaria). Most crude protein content (320-325 g.kg-1 a dry matter) contained the forage at the beginning of grass vegetation, while in the same period the crude fiber were at least. It was observed an opposite dependence with advance of vegetation. The greatest values of the crude protein yields were reported between 71st–92nd day (from 91.9 to 97.0 t.ha-1) after N80P80- and between 71st–102nd day (from 105.9 to 110.5 t.ha-1) after N160P80-fertilization. Most feed units per 1 ha were obtained after fertilization with N160P80 - 2509.4 FU and with N80P80 - 2225.5 FU. The energy nutritiousness of the grass forage (irrespective of fertilization levels) increased the values of IE, FU, MFU and GFU during in decades of the active vegetation. For all of the aforesaid indicators that process continued until 71st day after the beginning of vegetation and the lowest values had of a 184th day (in the end of vegetation). The established equations for predicting of energy and protein value of the forage biomass in decades have a high statistical reliability.
Authors and Affiliations
YANKO KOZHUHAROV| Complex Experimental Station, 35 Nevyastata Str., 4700 Smolyan, Bulgaria., VLADIMIR LINGORSKI| Research Institute of Mountain Stockbreeding and Agriculture, 281 Vasil Levski Street, 5600 Troyan, Bulgaria.
Keywords
Related Articles
- EP ID EP4854
- DOI -
- Views 662
- Downloads 35
Efficiency of potato production in the city of Tabriz – Basmenj
In this study, the available data on potato production in the city of Tabriz city Basmnj, the first was to determine the appropriate production function. After determining the appropriate form of test functions, the resu...
Specifying the Relation between the Concept of Value and Conservation in Cultural Heritage
Value can be called the key term of contemporary society in the intervention of valuable works to protection them. Nowadays, one of the most significant challenges affecting the intervention procedures is investigation a...
Optimal Placement of PMUs Considering Sensitivity Constraints
Phasor Measurement Unit (PMU), which is based on the GPS technique, is able to provide power engineers with immediate and precise measurements. By utilizing PMUs, the reliability and stability in power system are expecte...
Evaluation of urinary mercury levels in dentists of Dentistry department of Ahvaz oil industry`s health care, in 2010
Background: Occupational exposure to dental amalgam, could exposes them to Inhalation of mercury vapor; If Mercury accumulation exceeds the allowed limit(overloads) in the body, their health would be at risk, that it is...
Classification and analysis Synoptic patterns of the most sever wet year Uremia Lake Basin during 1977- 2012
The aim of this research is recognizing and Classifying Synoptic patterns of the most severe wet year over Uremia Lake Basin during 1977-2012. After determining rain temporal-local threshold, rainy days spread over Basin...