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苗木分级 seedling grading英语短句 例句大全

时间:2022-09-09 16:07:30

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苗木分级 seedling grading英语短句 例句大全

苗木分级,seedling grading

1)seedling grading苗木分级

1.The standard ofseedling grading of Mesua ferrea L.提出了以苗高和地径作为该树种苗木分级的质量指标,并得出铁力木苗木的3级分级标准,即:Ⅰ级苗:树高≥19。

2.The standard ofseedling grading of Pterocarpus indicus was studied by using the methods of gradual cluster analysis.提出了以苗高和地径作为该树种苗木分级的质量指标,并得出印度紫檀苗木的3类(级)分级标准,即:Ⅰ级苗:苗高≥29 6cm,地径≥0 33cm;Ⅱ级苗:29 6cm〉树高≥19 6cm,0 33cm〉地径≥0 27cm;Ⅲ级苗:树高〈19 6cm,地径〈0 27cm。

3.The standard ofseedling grading of the 6-month-old physic nut seedlings was discussed by using the methods of gradual cluster and average±standard deviation analysis.采用逐步聚类分析方法和平均值±标准差法,探讨了苗龄6个月的小桐子苗苗木分级标准。

英文短句/例句

1.Seedling Grading and Experiment on Seedling Cultivation with Different Density of Neolitsea sericea舟山新木姜子苗木分级及不同密度试验

2.Tree seedling quality grading of major species for afforestation主要造林树种苗木质量分级

3.Studies on the Automatic Quality Estimation and Grading of Grafting Seedling;嫁接苗木自动化品质检测与分级研究

4.And the further researches on ASC by computer vision are proposed.最后,基于对苗木自动分级问题的理解,提出了苗木自动分级方法的一些展望。

5.Experiment on the Preservation Rate of Afforestation by Different Grades of Seedlings of Spruce不同等级云杉苗木造林保存率试验结果与分析

6.Mixing application of N, P, K and Si Affecting Dry Matter And Seedling Quality Of One-Year-Old Cathay Poplar氮、磷、钾、硅肥配施对大青杨一年生苗干物质及苗木等级影响的研究

7.Research on the Key Techniques and the Provincinal Technical Criterion s Formulation of Schima Superba s Sowing Seedling;木荷播种育苗主要技术研究及省级标准的建立

8.Effect of Nitrogen on the Seedling Growth of Liriodendron chinense Families氮素营养对马褂木家系苗木生长效应分析

9.Water Ecological Characteristics of Platycladus Orientalis in Semi-arid Region on Loess Plateau;黄土半干旱区侧柏苗木水分生态研究

10.The Variation Analysis of Seeds and Seedlings of Toona Sinensis in Different Provenances;不同种源香椿种子及苗木差异性分析

11.Response of Seedling Growth of Four Shrub Species to Water Stress四种灌木幼苗对水分胁迫的生长响应

12.Physical Anthropology Analysis of Dragon Canoe Race of Miao Nationality苗族独木龙舟竞渡的体质人类学分析

13.Experimental Analysis of Self-propelled 2ZYZ-20 Seedling Transplanter2ZYZ-20型自行式苗木移植机试验分析

14.Growth of Different Rhizome Grades of Paris smith polyphylla var.yunnanensis(Fr.) Hand-Mass云南重楼种苗分级栽培生长情况分析

15.Graded standard of citrus budding and its inspectionGB/T9659-1988柑桔嫁接苗分级及检验

16.AN EXPERIMENT ON DOMESTICATION AND GRADED-CULTIVATION OF JAPANESE SEA-BASS (Lateolabrax japonicus) FRY FROM ESTUARY花鲈天然苗种的驯养和分级培育试验

17.Principle Components Analysis on Factors Influencing Choice of Poplar Seedling in Jiangsu;苏北林农苗木购买决策因素的主成分分析

18.Investigations of the Factors Affecting Farmers Purchasing of Poplar Saplings in Jiangsu;江苏林农购买苗木决策因素的主成分分析

相关短句/例句

seedling classification苗木分级

1.Containerseedling classification of Ormosia yunnanensis;云南红豆容器苗的苗木分级

3)seedling sorting苗木分级

1.Planting trial ofseedling sorting to Larix kaempferi;日本落叶松苗木分级造林试验

4)standard degree of seedling苗木分级标准

5)Automatic classification of seedling苗木自动分级

6)higher-grade seedlings大等级苗木

延伸阅读

辨别香花槐苗木的方法香花槐,为蝶形花豆类落叶乔木,是近年从国外引进的速生园林绿化树种。具有生长快、适应性强等特点,每年5月、7月开两次红花,每次60天,花朵大、色泽艳丽。是集绿化、造林、保持生态和畜用饲料等综合利用价值于一体的优良树种。受经济利益驱使,现在市场有用其他槐根冒充香花槐,致使很多人上当受骗。笔者根据几年来的栽培经验,特提醒引苗户注意以下苗木鉴别方法,供参考。目前市场出售的假香花槐苗木大致有以下三种:1.用红花洋槐替代香花槐。红花洋槐与香花槐花冠同是蝶形紫红色,红花洋槐每年开一次花,结荚果,用刺槐作砧木嫁接而成。香花槐每年开两次花,不结荚果,用根段繁殖。2.香花槐嫁接苗。用香花槐枝条与刺槐苗作砧木的嫁接苗,这类苗木可直接用于工程绿化,但不能作繁殖用,如用该苗的种根繁殖出的是刺槐苗。3.用刺槐或紫穗槐苗掺假。刺槐苗的刺大而坚硬,紫穗槐无刺,而香花槐有少量的小刺。种根鉴别:目前香花槐种根掺刺槐和紫穗槐种根者居多,香花槐种根比刺槐种根略软,皮色发黄,根瘤比刺槐少,紫穗槐根表皮比香花槐光滑,但较细的根难以辨别。香花槐在苗期比较容易鉴别,一般新梢长出的嫩叶片微红色均为香花槐。香花槐苗木市场潜力大,因此,引进种苗时,应选择信誉好的苗木公司或科研院所引进纯正良种,以生产同,并选择合理的种苗价格,以确保引种户的经济效益。(摘自《中国花卉报》2002/11/23)

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