ّFarhad Azhir
Abstract
Knowledge of livestock grazing behavior is one of factors of optimal and sustainable rangeland management. For optimal management of mountain rangelands, a study was conducted in the rangelands of Lavash. This is located in the Central Alborz Protected Area, and grazed by native hybrid cows. Measuring ...
Read More
Knowledge of livestock grazing behavior is one of factors of optimal and sustainable rangeland management. For optimal management of mountain rangelands, a study was conducted in the rangelands of Lavash. This is located in the Central Alborz Protected Area, and grazed by native hybrid cows. Measuring the vegetation characteristics of the rangelands those areas with 30 plots of 1 × 1 square meter, in three survey strips parallel transects with a distance of 50 meters from each other's, and a length of 100 meters in 2018 and 2019. According to the obtained results, the amount of forage consumption was almost twice of what was range capacity. The preference value of most of the studied species was estimated between 32 and 35% by weighing usage forage method. Palatability category and grazed time percent of each plant species was determined by using camera recording. Plant distribution on rangeland and plant cover percent effected on grazed time percent in the last month during grazing season. Hybrid cattle had unique desire to breed most of the species except for three species belong to Poaceae, Bromus tomentellus, Alopecurus textilis and Hordeum brevisubulantum which were considered more palatable. To calculate the weighted average percentage of preference value of each plant type, rangeland manager could be choose a range of decisions about each of the plant species indices include: range production, plant coverage percentage, and plant density, according to the type of vegetation type, the importance of the role of each plant species and other environmental conditions.
ّFarhad Azhir; Mohammad Fayaz
Abstract
It was necessary to detect Technical knowledge for advising culturing various plant species which share in production forage rangelands depend on region condition. Vicia subvillosa species seeds were collected from ranges around road direction Azadshahr city toward Shahrood city, on 1900 meter height ...
Read More
It was necessary to detect Technical knowledge for advising culturing various plant species which share in production forage rangelands depend on region condition. Vicia subvillosa species seeds were collected from ranges around road direction Azadshahr city toward Shahrood city, on 1900 meter height level form sea, and planted. The goal was to introduce the suitable season and method for cultivating this species in rangeland area. Experiment was performed on Telmadare area in Posht-kooh water spreading station with 350 mm. precipitation and semi dry cold climate. Main treatments include autumn and spring, sowing date, and two subsidiary treatments seedling and planting seed, by split plot completely randomize block design in three repetition were compared. Result showed that there was a significant deference between spring and fall date cultivation, and also between two subsidiary seedlings and planting seed. Seed Germination and survival at growing period in fall season (Germination 30.50%, survival 20.97% ) compared to spring (Germination 21.50%, survival 15.33% ) and planting seed (Germination 32.61%, survival 22.39% ) compared to seedling (Germination 21.39%, survival 13.92% ) were preferred. So with Vicia subvillosa cultivation is possible to produce forage in experimental Station case, and similar climatic ecosystem area.
