查询词典 crop-ear

He chose a tillage system which would incorporate crop residues and animal manure as deeply as possible, believing that improved soil tilth and moisture holding capacity combined with deep distribution of plant nutrients were keys to higher yields.

他选择了一种尽量深施作物秸杆和动物粪肥的耕作制度，相信改良土壤耕性和持水量结合植物养分在更深层次分布是高产的关键。

The result indicated that suitable thickness of paddy soil is about 15cm,and for dry arable land it should not be lower than 20cm;The alluvial rivers parent material is the best one to influent the output,the rice fields is the worst with the parent material of slate ground,while the dry and plough land is the worst for its purple sand shale parent material;The paddy rice is best with the acid soil,and the dry crop is the best with the neutral soil;The obstacles horizon exist in 35.2%of the rice fields in research region,and many for middle or top digit obstacles.

结果表明，水稻土的适宜耕层厚度为15 cm左右，旱耕地适宜耕层厚度应不低于20cm；成土母质对产量的影响以河湖沉积物母质最好，稻田以板页岩母质最差，旱耕地以紫色砂页岩母质最差；水稻以酸性土最好，旱作以中性土最好；研究区稻田有35.2%的存在障碍层，且多为中、高位障碍，是影响水稻产量整体提高的主要因素；水稻和旱作都以壤土为最好，其中，稻作怕砂，旱作怕粘；水稻土适宜的容重为1.00—1.29 g/cm~3。

His costume was a peculiar mixture of the professional and of the agricultural, having a black top-hat, a long frock-coat, and a pair of high gaiters, with a hunting-crop swinging in his hand.

他的装束是奇特的专业人士和农民的混合，一顶黑色的顶帽，长礼服，一双长统靴，手上挥舞着狩猎鞭。

At Topeka, Kansas, he sketched the outline of a crop control measure.

他在堪萨斯州的托皮卡勾画出农作物控制法的轮廓。

I am for the opinion that crop circles have something to do with the tornado in the area.

我同意的观点是，麦田怪圈与其所在地区的龙卷风有关系。

Touring car design are for the most part at a mature stage so there is not much you do to improve the current crop of touring cars in the market nowadays.

旅游汽车设计大部分是在一个成熟的阶段，因此没有多少你改善当前的作物的房车赛在当今的市场。

ABC's new crop of comedies are what Variety, a trade magazine, calls "laughers".

ABC 的新喜剧如交易杂志《Variety》说的，就是"搞笑的片子"。

Produ- ction and accumulation of trehalose may play an important role in crop breeding.

海藻糖良好的抗高渗能力可能在农作物育种方面发挥重要作用。

We Investigated the species of diseases and insect pests, species of natural enemies, distribution and dominant species in export vegetable bases in Shandong Province. Dynamics of main diseases and insect pests were studied.2. We investigated the main control technologies for diseases and insect pests, types and application methods of pesticides.3. Effects of crop varieties, fertilities and cultivation on diseases and insect pests, production and pesticide residues were examined.4. Control effects and application technologies of frequency trembler grid lamps, greenhouse ozone machine and insect-proof net were tested.5. By research, seven biological preparations and twelve chemical pesticides with high activity, low toxicity and low residue were screened.

主要结果如下：1查清了山东省出口蔬菜基地蔬菜病虫害发生种类，天敌种类、分布、并评价上风种；探明了主要病虫发生消长规律。2查清了山东省出口蔬菜基地目前病虫害防治的主要应用技术、施药种类及主要施药方式。3明确了作物品种、肥力、栽培方式等农业措施对病虫发生、产量和农残的影响。4明确了频振式杀虫灯、温室病害臭氧防治机、防虫网等物理措施防治效果及其应用技术。5通过实验，筛选出7种生物制剂和12种安全有效低毒低残留化学农药品种。

The main varieties of citrus crop in Fujian were Ponkan,Fuji mandarin and Xuekan which possessed resistivity to Tristeza,Exocortis and Tatter-leaf. Therefore,Ponkan,Fuji mandarin and Xuekan grafted on self-stock which were infected by Tristeza,Exocortis and Tatter-leaf did not result in a great loss of production.

福建省柑桔的主栽品种是芦柑、雪柑和福桔，它们对衰退病、裂皮病和碎叶病具有一定的抗性，所以这3种病原的混合侵染对本砧的柑桔生产没有造成严重的危害。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。