, 1997 黑白花奶牛血清ldH同工酶以b型酶占相对优势（58.7%—92.0%），ldH总活力以及各同工酶的表现形式和A、b两亚基的表达程度随机体生理状态的改变和个体生长发育阶段的不同而有变动。它们的这种表达特征是IdHA和IdHb两基因实施调控的结果 ...
许玉德, 许莉
core
野生动物学报, 2011 2010年1～12月,在北京南海子麋鹿苑用粪便显微组织技术分析麋鹿食性。将收集的240组粪样8个复合样本和11科19种（属）植物标本进行镜检分析,结果如下:春季,麋鹿主要采食紫花苜蓿（4.03%）、狗尾草（11.87%）、野苋菜（9.51%）、黑麦草（8.13%）;夏季,紫花苜蓿（27.61%）、狗尾草（15.45%）、禾本类其他植物（11.82%）、野苋菜（8.07%）;秋季,紫花苜蓿（22.57%）、蒿（12.55%）、狗尾草（11.26%）、黑麦草（11.17%）;冬季,紫花苜蓿（17.16 ...
王轶, 王文
doaj
Growth and Management Effect of Larix Principis-rupprechtii Plantation [PDF]
, 2023 [Objective] The effect of growth and management of a Larix principis-rupprechtii plantation was analyzed in order to provide a reference for the scientific and rational management of L.
Jia Baoguang +6 more
core +1 more source
西部山区畜牧业扶贫项目存在的问题及对策建议——基于贵州省望谟县的调研分析 [PDF]
, 2009 文章以贵州省望谟县草地生态畜牧业扶贫项目为研究个案,深入探究其在政策制定和执行过程中存在的不足,并提出相关建议。研究者认为应加强对农户资金借贷的引导;培训专业畜牧人员,给养殖农户提供技术指导;加强政策宣传工作,保证农户对项目要求的准确理解;科学选择和培育牧草;尽快落实配套设施建设。同时 ...
刘计峰, 彭梅珠, 陈桑桑
core
Effect of arbuscular mycorrhizal fungi on the relationship between root respiration and ultraweak luminescence under salt stress in strawberry [PDF]
[Objective] Soil salinity poses a significant challenge to global agriculture. Salt stress inhibits root respiration and disrupts physiological and metabolic activities, impairing essential functions such as absorption and transport.
FAN Li +3 more
core +1 more source
Patterns of Agricultural Sustainable Development in Haiyuan County [PDF]
, 2003 海原位于宁夏南部山区,农业在海原县国民经济中占有举足轻重的地位。本文分析了海原县农业生产的过去、现状及存在的问题,剖析了海原县光、温、水、土等农业资源,并以可持续发展为理论基础,对海原今后农业发展模式进行了初步探讨,提出了减少耕地面积,退耕还林还草,大力发展畜牧业,充分利用雨水资源,提高雨水集蓄节灌综合技术,建立集水型生态农业,发展精细农业的可持续发展对策。Haiyuan is located in southern of the Ningxia Hui Autonomous Region ...
张珞平, 洪华生, 黄金良
core
Characterization and phylogenetic analysis of the chloroplast genome of endangered Impatiens chishuiensis [PDF]
[Objective] The chloroplast genome structure and phylogenetic location of Impatiens chishuiensis were studied in order to provide scientific basis for the conservation of plant germplasm resources, genetic diversity, and phylogeny of I.
HUANG Haiquan +3 more
core +1 more source
Effects of Desulfurized Gypsum Applied Combined with Polyglutamic Acid on Improving Saline Soil [PDF]
, 2023 [Objective] The effects of desulfurized gypsum and polyglutamic acid (γ-PGA) improves saline soil were studied in order to provide a theoretical and technical basis for improving saline soil in Northwest China.
Li Hongyi +4 more
core +1 more source
A preliminary study on the herbicidal activity of the hydrolysates from five natural protein materials [PDF]
, 2007 以鱼粉、肉骨粉、豆粕、菜籽粕及芡粉等几种天然蛋白原料为底物,以碱性蛋白酶为水解酶制备出天然蛋白原料的水解物,用培养皿生物分析法检测不同蛋白原料水解物在不同浓度(0.5、1、2、5 mg/mL)条件下对杂草野菊种子的生根抑制活性。结果表明:不同蛋白原料制备出的水解物对野菊种子萌发根系生长均有抑制作用,并且随着浓度增加其抑制活性增强,不同蛋白原料水解物的除草活性有显著性差异,其除草活性顺序为:鱼粉水解物>肉骨粉水解物>豆粕水解物>菜籽粕水解物>芡粉水解物 ...
于兴娜, 卢昌义, 杨剑
core
Effects of Interplanting Medicinal Herbs on Runoff, Sediment and Nitrogen and Phosphorus Losses in Young Oil Tea Plantation on Red Soil Sloping Field [PDF]
[Objective] To investigate the effects and applicability of different intercropping patterns of medicinal herbs on water, soil, and nutrient losses in young oil tea gardens on red soil slopes. [Methods] Runoff plot experiments were carried out in Jiangxi
DUAN Jian +4 more
core +1 more source