牧草

The species and distribution of Agropyron.

冰草属牧草的种类与分布。

The species and distribution of Agropyron.

标题 冰草属牧草的种类与分布。

He species and distribution of Agropyron.

itle 冰草属牧草的种类与分布。

The species and distribution of Agropyron.

文章题目冰草属牧草的种类与分布。

It provides basic data and technical support for Cultivation and Management and seed propagation of Agropyron cristatum in arid region . The results showed as follows:(1)Agropyron cristatum is cross pollinated forage .There were great difference among plants within populations.

研究结果表明：(1)冰草是异花授粉牧草，群体内株间变异较大，根系的生态生活型、种子外稃被毛、叶片表皮被毛等方面存在着丰富的遗传多样性。

Efficiency: 4-layer package: 60 bundles/hour, 30-50kg/bundle. It can make the storage period longer, prevent effectively stretching die from ultraviolet rays and insulate air and carry out anaerobism ferment so as to keep the freshness and nutrition contents of the pasture.

包四层为每小时60捆，每捆30-50kg，可连续24小时作业，包后能较长时间的贮存，拉伸膜能有效地阻隔紫外线侵入，与空气隔绝，进行厌氧发酵保持牧草的新鲜和营养成分。

Armillaria luteo-virens is a ectomycorrhizal fungus symbiotic with some species of Kobresia in Tibet Plateau, China. A strain was recently isolated from fruitbody tissue of the fungus. To determine whether the strain is the pure culture of the fungus, the internal transcribed spacer region and the first intergenic spacer region (IGS-1) of the nuclear ribosomal DNA of fruiting body and the isolated strain were sequenced and compared. Further, the 5.8S/ITS and IGS-1 sequences of the species were BLAST matched with GenBank database on homology and a phylogenetic tree was constructed based on 5.8S/ITS sequence and two phylogenetic trees were constructed separately based on two IGS-1 sequences.

首次从采自青藏高原、与高原牧草嵩草属Kobresia草本植物形成外生菌根的黄绿蜜环菌Armillaria luteo-virens子实体中分离获得一组织分离菌株，运用rDNA-ITS和rDNA-IGS-1测序技术对该组织分离菌株是否为黄绿蜜环菌的纯培养菌种进行分子鉴定，并基于黄绿蜜环菌的5.8S/ITS和IGS-1序列进行核酸序列数据库GenBank同源性检索比对、构建系统发育树。

Growth characteristics, stem-leaf ratio, biomass, crude protein and grain yield ten varieties of Avena sativa were studied in Datong County, Qinghai Province.

在青海大通县对10种高产燕麦Avena sativa品种的物候特性、茎叶比、牧草产量和粗蛋白含量以及种子产量进行了比较研究。

The result showed that the volume, dry weight and total sugar content of root gradually reduced with the harvest frequency, but the reductive sugar content in root increased. While the harvesting frequency was two times per year, the volume and dry weight of alfalfa root showed an decreasing at beginning and then increasing when the first harvesting was at different growth stages and the lowest values were at flowering period however, it was not significant for brome.

结果表明：随刈割次数增加，两种牧草根体积、根干重和根部总含糖量逐渐减小，而根系还原糖含量呈逐渐增加的趋势；在年刈割两次，首次刈割分别在不同生育时期试验处理中，苜蓿根体积和干重呈先减后增趋势，首次刈割在盛花期根体积和干物质含量均最低，而无芒雀麦变化不明显。

The effect of Zea mays and Bromus riparius on soil and water loss were studied,the experiment was conducted to plant crop and grass in runoff-plots on the 15 degree slope naturally,the bare slop is CK,then the runoff and soil erosion amount and the biological characteristics of corn and meadow bromes termly were measured,and difference of soil and water loss prevention effect on the slop land were determined.The results showed that soil and water loss became less after both corn and meadow brome planting.And the leaf area and the coverage of meadow brome higher than corn,which was benefit for less soil and water loss at the rain season early.Meanwhile,roots of corn and meadow brome mainly distributed in 0-10 cm soil layer,and the root biomass of meadow brome was 2.88 times than that of corn.

试验在自然降雨条件下，在15°坡地设置作物与牧草径流试验小区，以裸地为对照，在每次降雨之后用全深剖面采样器取样，测量其径流量和土壤侵蚀量，定期测定玉米和草地雀麦的生物学特性，研究玉米与草地雀麦生物学特性变化及其坡地水土流失防治效果的差异，探索植物种植对坡地水土流失的主要影响因素，结果表明：种植玉米与草地雀麦，对坡地水土流失均有一定防治作用，但是，与玉米相比，草地雀麦的叶面积指数和覆盖度可在雨季前达到较高水平，有利于早期坡地水土流失防治。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。