论文部分内容阅读
【正】 一 青海高原旱作农业区系指黄土高原西缘向青藏高原过渡区,包括东起民和县境西至日月山一线,横跨河湟两大灌区的低山沟壑丘陵干旱山地,以及海北大通河畔农牧交错小块旱作区。海拔1,850—3,100米,纵垂暖温、凉温、冷温三个农业气候带。生长季145—220
高寒旱作农业发展途径商榷
【摘 要】
：
【正】 一 青海高原旱作农业区系指黄土高原西缘向青藏高原过渡区,包括东起民和县境西至日月山一线,横跨河湟两大灌区的低山沟壑丘陵干旱山地,以及海北大通河畔农牧交错小块
【机 构】
：
青海省农林科学研究院
【出 处】
：
农业技术经济
【发表日期】
：
1984年10期
其他文献
Natural starters have been extensively used for many centuries to make many different fermented food products from different raw materials: Milk, meat, roots, v
随着社会主义市场经济体制的建立,企业的资源配置、产品销售、价格调整都在市场的调节下进行。这种客观经济环境,决定了企业的产品生产经销都必须在市场中进行。为了充分发挥
Limited information is available on the effects of crop rotation on seed nutrition. Therefore, the objective of the current research was to determine whether cr
The lipid hypothesis of coronary heart disease proposes that a high total cholesterol level has a causative role in coronary heart disease (CHD), specifically i
Chemical Composition, Minerals and Antioxidants of the Heart of Date Palm from Three Saudi Cultivars
The aim of this study was to determine the chemical composition, minerals and antioxidants of heart of date palm from three Saudi cultivars. Moisture (ranged fr
The Brazilian Ministry of Health recommends that by 8 months of age, children should eat the same types of foods consumed by the other members of the family. Th
The Role of Copper and Vitamin A Deficiencies Leading to Neurological Signs in Captive Cheetahs (&am
Neurological signs like ataxia and hind limb paresis have often been reported in cheetahs (Acinonyx jubatus), lions (Panthera leo) and snow leopards (Panthera u