Goat Breeding Objectives in Relation To Agroecological Zonation Under Dryland Farming Conditions of North Kordofan, Sudan
نویسندگان
چکیده
منابع مشابه
Agroecological Farming Systems
The term agroecology refers to ecosystems. Ecosystems are characterised by aspects such as nutrient cycling, population regulation, energy flows and a dynamic equilibrium. These characteristics apply to natural ecosystems, and, in a much altered form, also to manmade or agricultural ecosystems. The magnitude of the differences between natural and agricultural ecosystems depends mainly on the hu...
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In this experiment the effect of inoculation with Azospirillum on the flag leaf and spike rachis anatomical features and also on grain yield and grain weight was investigated for the first time in bread and durum wheats during 2015-2016 growing season under semi-arid condition. The crop yield increased due to the inoculation with Azospirillum with a maximum yield increase of about 8.0 per cent ...
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ویژگی های زمین شیمیایی، کانی شناسی، و میکرومورفولوژیکی خاک ها و سنگ مادر مربوطه در منطقه بین بخش های جنوبی زاگرس و خلیج فارس تا دریای عمان(استان هرمزگان، ایران) مورد بررسی قرار گرفت. هدف های این مطالعه شناسایی تغییرات در خصوصیات فیزیکی، شیمیایی، و ترکیب کانی شناسی خاک، مطالعه میکرومورفولوژی و تکامل خاک، و بررسی توزیع عنصر خاک بر اساس هوازدگی، پروسه های خاک و زمین شناسی جهت توصیف اثرات مواد مادر...
15 صفحه اولBreeding Objectives and Desired-Gain Selection Index for Rayeni Cashmere Goat in Pasture System
The aim of this study was to define breeding goals and determine the suitable selection index in Rayeni cashmere goat using simulated data. To select animals for increased quantity of meat, milk and cashmere produced, body weight of the doe (BWD), milk weight (MW), cashmere weight (CW), weight of kids for sale (WK) and number of kids for sale per doe (NK) was used as selection criteria. Four se...
متن کاملMaize hybrid response to tillage under irrigated and dryland conditions
Wilhelm, W.W., Hinze, M.R. and Gardner, C.O., 1991. Maize hybrid response to tillage under irrigated and dryland conditions. Field Crops Res., 26: 57-66. The popularity of reduced-tillage cropping systems has emphasized the need to determine if maize (Zea mays L.) developed under conventional tillage systems (moldboard plow, disk, and harrow) is readily adaptable to conservation production syst...
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ژورنال
عنوان ژورنال: World Journal of Agriculture and Soil Science
سال: 2020
ISSN: 2641-6379
DOI: 10.33552/wjass.2020.05.000604