基本释义:

史前期杂草

网络释义

1)archaeophyte,史前期杂草

2)Weeds at seedling,苗期杂草

3)preliminary poetic history,前期诗史

4)Pre-historical period,史前期

5)Prehistory,史前时期

6)preplant weed invesitigation,播前杂草调查

用法和例句

The Appearance, Development and Pervasion of Prehistory Rice Cultivation Agriculture in the Haidai Region;

海岱地区史前时期稻作农业的产生、发展和扩散

Tentative Research on Jade Wares from Xiuyan in Prehistory;

史前时期岫玉器初步研究

Study on Chemical Control of Weed in Establishing Alfalfa (Medicago Sativa L.) Fields Seeded in Autumn in South Jiangsu Hilly Area

苏南丘陵区秋播苜蓿苗期杂草化学控制试验

Research on Corn Seeding Stage Weeds Detecting Technique Based on DSP

基于DSP的玉米苗期杂草识别方法的研究

Study on Weed Control in Establishing Alfalfa Fields Seeded in Autumn in South Jiangsu Hilly Area;

苏南丘陵区秋播紫花苜蓿苗期杂草控制技术研究

SVM-Based Spectral Recognition of Corn and Weeds at Seedling Stage in Fields

基于支持向量机的玉米苗期田间杂草光谱识别

Reasearch on Method of Identifying Weed in Corn Seedling Field Applying Image Processing Technology;

基于数字图像处理玉米苗期田间杂草识别方法的研究

Effects of Soil Nutrition on Relative Competitive Ability of Seedling Eupatorium Adenophorum, an Alien Invasive Weed, and Ryegrass, Lolium Perenne;

土壤营养对入侵杂草紫茎泽兰与替代植物黑麦草苗期竞争力的影响

Many urban people can not tell rice seedling from weeds.

许多城里人分不清水稻苗和杂草。

The gardener raked over the bed and removed the weeds.

园林工人翻耙苗圃,除掉杂草。

Weed Control Efficacy Trial of 20% ‘Longjuanfeng’ Aqueous Solution in Nursery

20%龙卷风水剂除治苗圃杂草药效试验

STUDY ON CONTROL TECHNIQUE OF POSTEMERGENCE BROADLEAF WEEDS ON Dichondra repens TURF

马蹄金草坪苗后阔叶杂草防除技术研究

The experiment showed that the method could identify acerose endogen weed correctly.

实验结果表明，此方法可有效地识别出玉米苗期田间细长的单子叶杂草。

Study on Salt Tolerance in Stage of Seed Germination and Seeding of Stylosanthes Guianensis Pasture Plant;

柱花草属牧草种子萌发期及幼苗期耐盐性研究

Difference of Drought Resistance among 14 Psathyrostachys juncea Accessions at Seedling Stage

14份新麦草种质材料苗期抗旱性差异

Comprehensive Evaluation of the Drought Resistance of Elymus dahuricus Turcz. and Elymus sibiricus L. at Seedling Stage

披碱草与老芒麦苗期抗旱性综合评价

Efficacy experiment of Quizalofop-p-ethyl 5% EC Against Gramineal Weeds in Acer triflorum Nursery Field

5%精喹禾灵乳油防除苗圃拧劲槭林下杂草试验

Study Classification of Seedling of Cruciferae with Weeds in Xinjiang

新疆农田十字花科主要杂草幼苗分类特征研究

The Study of Techniques of Weed Control in Berberis Thunbergii Nursery in Tai an;

泰安市红叶小檗苗圃杂草化学防除技术研究

The Study on Photosynthetic Character of Different Hybrid Tulip Tree Clones

杂交鹅掌揪无性系苗期光合特性研究