creeping European clover having white to pink flowers and bright green leaves; naturalized in United States; widely grown for forage

the results of the experiment show that adding the powdery mixture of alfalfa and white clover by 5-10% to the laying hen's diets does not decrease laying performance.

本试验结果表明：在蛋鸡日粮中加入5～10％的紫花苜蓿和白三叶混合草粉，对产蛋性能无不良影响。

influences of the compound effects between nitrogen and zinc on growth, n-fixation and transfer of fixed nitrogen of white clover in mixed culture;

选用南方草地土壤——山地黄棕壤进行盆栽试验 ，研究了氮锌复合作用对混播系统白三叶生长、根瘤发育、固氮及固氮产物转移的影响。

researchers are now one step closer to unlocking the genetic mechanisms behind four leaves in white clover and fixing this trait for breeding purposes.

研究人员已进一步解锁三叶草的基因机制，通过培育的目的来确定叶子的性状。

therefore, it can be concluded that intercropping white clover and straw mulching is an effective ecological measure for weeds control.

这表明稻草覆盖和间种白三叶草能改变茶园杂草群落结构，有效控制杂草生长，增加茶叶产量和改善茶叶品质。

white clover has many genes that affect leaf color and shape, and the three in the study were very rare.

白三叶草有很多影响了叶片的颜色和形状的基因，并在研究中十分罕见。

though the four-leaf variety may be best known for bringing luck to its discoverer, white clover is also known a high quality forage, and for its presence as a ubiquitous lawn weed.

尽管四叶草的发现给研究工作带来点帮助，但是白色三叶草也是一种高品质的牧草，而且无处不在的草坪杂草上存在。

how these leaf traits are inherited and why white clover has so many rare leaf traits and has puzzled geneticists and breeders for many years.

这些三叶草叶子的性状是通过什么方式遗传的，为什么白色三叶草有这么多珍贵稀有的性状，已困扰遗传学家和育种者多年。

according to the growth of the two species in 50 days, white clover has better growing trend and is less dependent on the adding of peat.

从盆栽50天两种植物的生长状况来看，白三叶草的相对长势更好，同时对泥炭施入的依赖性更小。

rose, japanese pagodatree, evergreen euonymus, willow, white clover and tall fescue in researched plants have better endurance, which are suitable for reclaimed water irrigation.

本试验所研究的植物中，月季、国槐、大叶黄杨、绛柳、白三叶、高羊茅等具有较高的耐性，可以使用再生水灌溉；

sand culture experiment was carried out to study the effect of interaction between n and zn on active oxygen metabolism and chloroplast ultrastructure of white clover leaves.

在砂培条件下，研究了不同水平氮锌配施对白三叶草叶片活性氧代谢和叶绿体超微结构的影响。

a mixed artificial grassland of perennial ryegrass and white clover in the degradation succession process was analyzed on the basis of aboveground biomass, density, coverage and species diversity.

研究了退化多年生黑麦草与白三叶混播人工草地的地上生物量、密度、盖度及物种多样性变化规律，探讨了退化演替的物种替代机制及恢复演替模式。

nirs model of white clover crude protein content has good accuracy and precision.

所建立的近红外模型具有良好的準确性和预测能力。

nirs is feasible as a rapid analysis method, and can be used in the selection and breeding of white clover germplasms to improve the breeding efficiency.

nirs作为一种白三叶粗蛋白质快速分析的技术是可行的，在白三叶蛋白质品质育种中，可快速进行种质资源筛选，提高育种效率。

the results showed that grazing restrained the growth of annual gramineae weeds and perennial gramineae grass, but accelerated the growth of white clover and noxious plants.

结果表明，放牧能明显抑制一年生禾本科杂草及播种多年生禾本科牧草的生长，但对白三叶和草地有害植物的生长都有促进作用。

the amount of plant biomass increase with the increase of fertilizer, using manure can increased aboveground biomass of white clover significantly, but sludge fertilizer is better on tall fescue.

植物生物量基本上是随着施肥量的增加而增加的，施加农家肥对显着提高白三叶地上生物量，但是污泥肥对高羊茅的效果更好。

in recent years, the planting area of white clover and tall fescue has rapidly enlarged in farming zone with the development of animal husbandry.

近年来，随着种草养畜的发展，这两种牧草在农区的种植面积迅速扩大。

the results showed that white clover as green manure could be fit for the production of organic vegetables.

结果显示，白三叶是适合于有机蔬菜生产的肥料。

there was no significant relationship between the height and the tiller number of white clover and perennial ryegrass with the catalase activity and urease activity.

整个生育期，过氧化氢酶活性的提高促进了氮、磷、钾的转化，使其被白三叶与黑麦草有效利用；

sand culture experiment were carried out to investigate the compound effects of n and zn on chloroplast ultrastructure of white clover leaves.

在砂培条件下，研究了不同水平氮锌配施对白三叶生长、叶片叶绿素含量和叶绿体超微结构的影响。