查询词典 crop

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。

In this paper, based on the research of the relationship between some crop and eco-environment, the eco-environment of Yunnan trueborn herb Panax Notoginseng is analyzed and the range of different grade eco-suitable zone of Panax Notoginseng is showed by dint of geographic information system.

本文在借鉴部分农作物与生态环境关系研究的基础上，对云南省文山州道地药材三七的生态环境进行了分析，借助地理信息系统，得出了三七不同等级生态适宜区的范围。

Cassava is the most important energy produced root tuber crop in southeast、tropic Africa and Central America.

木薯是东南亚地区以及热带非洲和中美洲种植的一种重要的根茎类经济作物。

However, the widespread overuse of fertilizers, containing nitrogen and phosphorus by farmers to increase their crop yields, has led to significant quantities being left unabsorbed by plants.

然而，农民们为了提高农作物的产量而广泛地过度使用化学肥料，使得相当量的肥料不能被植物所吸收。

Actually, the development of genetically-modified products is a double-edged sword: On the one hand, it contributes to the enhancement of the world crop yield, as well as the quality, and reduction of chemical fertilizer and the pesticide use, helps solution of the famine and undernourishment in developing countries. Besides, it also promotes the development of certain related industries like pharmaceutical and chemical industries; On the other hand, it also brings the unprecedented threat for human beings. We are unaware of the potential effects in human bodies, or any unknown injury to the next generation, caused by genetic modification. Nor can we forecast what kind of influence to the extant gene will emerge.

而事实上，转基因生物技术的确是一把双刃剑：一方面，转基因技术可以提高世界农作物产量、提高质量、减少化学肥料和杀虫剂的使用、解决发展中国家的粮食缺乏、饥饿和营养不良的问题，另外，基因技术的飞速发展在很大程度上也促进了医药、化工等相关行业的发展；另一方面，它也为整个人类带来了前所未有的威胁，人们无法得知基因序列的改变会在体内引起何种潜在的变化，无法确定转基因产品是否会对下一代产生任何未知的伤害，无法预测转基因产品对现存基因会产生何种影响。

Actually, the development of genetically-modified products is adouble-edged sword: On the one hand, it contributes to theenhancement of the world crop yield, as well as the quality, andreduction of chemical fertilizer and the pesticide use, helpssolution of the famine and undernourishment in developingcountries. Besides, it also promotes the development of certainrelated industries like pharmaceutical and chemical industries; Onthe other hand, it also brings the unprecedented threat for humanbeings. We are unaware of the potential effects in human bodies, orany unknown injury to the next generation, caused by geneticmodification. Nor can we forecast what kind of influence to theextant gene will emerge.

而事实上，转基因生物技术的确是一把双刃剑：一方面，转基因技术可以提高世界农作物产量、提高质量、减少化学肥料和杀虫剂的使用、解决发展中国家的粮食缺乏、饥饿和营养不良的问题，另外，基因技术的飞速发展在很大程度上也促进了医药、化工等相关行业的发展；另一方面，它也为整个人类带来了前所未有的威胁，人们无法得知基因序列的改变会在体内引起何种潜在的变化，无法确定转基因产品是否会对下一代产生任何未知的伤害，无法预测转基因产品对现存基因会产生何种影响。

Otherwise,there are some information demonstrated that in the past's two years, the European agriculture suffered the drought, the raw silk crop underproduction.

另外，还有资讯显示，在过去的两年里，欧洲农业遭受天旱，生丝收成减产。

And, by the way, who estimates the value of the crop which nature yields in the still wilder fields unimproved by man?

可是，顺便说一说，大自然在更荒凉的、未经人们改进的地面上所生产的谷物，谁又会去计算出它们的价值来呢？

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。