禾本科杂草

草坪禾本科杂草的化学防除技术

Chemical Prevention and Eradication Technology on the Weeds of Gramineae in Lawn and Grassland

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 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 .

单用90%禾耐斯900&1350ml／ha对禾本科杂草防效可达90%以上，对一年生阔叶杂草也有显著防效；

With 900 1350ml / ha of 90 % Harness , more than 90 % of the grass weeds were controled , annual broadleaf weeds were obviously controlled .

运用倒置W9点取样法对江汉平原麦棉套作农田杂草调查，结果表明该地区麦田杂草有14科23种，其中禾本科杂草占27%，阔叶杂草占69%，莎草科占4%。

Field weed survey was conducted using an inverted W-pattern with 9 sampling points in Jianghan Plain . Of the 23 weed species recorded in wheat feilds , 27 % accounted for monocots and 69 % for dicots .

哈尔滨地区田间禾本科杂草生物学特性及群落结构的调查

The bio - attributes and community of grass family weeds in Harbin

旱田几种禾本科杂草结实期光合特性的研究

Photosynthetic Characteristics of Several Gramineous Weeds During Fructification Period in Dry Farmland

沈阳地区草坪禾本科杂草化学防除技术研究

Chemical control of gramineous turf weeds in the Shenyang area

主要杂草是一年生阔叶杂草和禾本科杂草。

Annual broadleaf and grass weeds are major problems .

烯草酮的最佳施药时期为禾本科杂草2~5叶期；

The best application timing for clethodim was the2-5 leaf stage of grasses .

利用三年苜蓿种子田杂草出草高峰是由一年生夏性禾本科杂草决定的。

The annual summer weeds determine the peak in the utilized third year field .

35%E501可湿性粉剂防除稻茬麦田禾本科杂草的研究

On Utilization of 35 % E501WP to Control Gramineae Weeds in Wheat Filed after Rice

初步生测结果表明，这些化合物对禾本科杂草有很好的除草活性。

The preliminary bioassay showed that these compounds had good herbicidal activities against grass weeds .

禾本科杂草是草坪中的顽固性杂草，其危害严重，防除困难。

Gramineous weeds in turf are obstinate and serious , and difficult to be controlled .

禾本科杂草危害较严重，是旱种水稻田的优势草类；

Grasses injured much more seriously than others , which dominated in dry seeded rice field .

河北省石家庄市麦田禾本科杂草发生情况调查

Investigation on the Occurence Conditions of Grass Weeds in Wheat Fields in Shijiazhuang , Hebei Province

杂草累计收获总干重或禾本科杂草干重可作为杂草危害程度的指标；

The total weed or grasses accumulated dry weight might serve as one of the weed damage indexes .

骠马乳油对高羊茅草坪禾本科杂草防效和安全性初报

Effect of Puma on the Control of Weeds of Grass Family in Direct Seeding Field of Tall Fescue

长春市草坪常见杂草有28种，分属于14个科，以菊科、禾本科杂草为多。

There are 28 common lawn weeds in Changchun City , China , which belong to 14 families , respectively .

4种除草剂对麦田禾本科杂草药效比较草原：以禾本科草类（禾本科）为优势物种的植物群落（生物群系）。

Effect Tests of Herbicides Against Grass weeds in Greenhouse Grassland A major world plant community ( biome ) dominated by grasses ( Poaceae ) .

用于防治小麦、大麦等作物田的阔叶草和部分一年生禾本科杂草。

Uses : Control of most broad-leaved weeds and some annual grasses in wheat , barley , oats , rye , triticale , flax , and on non-crop land .

调查结果表明，嘉定地区林业苗圃常见杂草有27科65种，以禾本科杂草和菊科杂草种类最多。

The investigation showed that the common weeds in forest nurseries of Jiading District had 65 species under 17 families , and most of them were under gramineal and composite families .

结果表明，该地区油菜田杂草的发生特点与耕作层土壤水分含量存在明显关系：对产量危害较大的禾本科杂草在重渍害区为优势种群，其相对多度随着土壤水分的增加而增高；

The results showed that relationship between the weed and the soil moisture in cultivated horizon was obvious . The monocots whose relative abundance increased with the soil moisture are the most abundant in the seriously waterlogged area .

粗毒素对禾本科杂草种子萌发抑制效果高于对阔叶杂草，而对玉米、水稻、油菜等种子萌发影响很小。

The inhibitory effect of crude toxin on the germination of gramineous weed seeds was much higher than that of the broad leaf weeds . This toxin has little influence on the seeds of maize , rice , rape and Chinese cabbage .

在吉林省中部地区气候条件下的最佳使用剂量，可采用125g/ha（有效成分），在禾本科杂草2片叶到2个分蘖期使用，均能获得较理想的防除效果。

The optimum amount used under the climatic condition in the central area of Jilin Province was 125 g / ha ( effective composition ) . Relatively ideal preventive and weeding effects were obtained when applying to weeds from 2-leaf stage to 2-till-er stage .