查询词典 crop farming

"A typical scheme selects rotation crop s from three classifications: cultivated row crop s (e.g., corn, potatoes), close-growing grains (e.g., oats, wheat), and sod-forming, or rest, crop s (e.g., clover, clover-timothy)."

典型的轮作耕种计画是从行间作物、密植的谷类、草根层作物或休闲作物(如车轴草、车轴草－梯牧草)中选择轮作作物。

The effect of rotation payment on rice production is statistically significant in the first crop, however, the effect of set-aside payment on production in the second crop is larger the first crop by four times.

第一期的稻田决策以稻作或轮作为主，故对轮作给付有显著反应，而在第二期的稻田决策则以稻作或休耕为主，且休耕行为具有习惯倾向，其对休耕给付的反应程度要较第一期大上四倍。

In practice, developments of crop technology include the same sort of practices adopted elsewhere in the world, namely: to utilize soil and plant testing services to predict N and P requirements, the need for soil amendments to improve soil structure, pH and salinity levels, infestation levels of take-all, the need for additional N after crop emergence, and so on; monitoring the crop's development after emergence, which is practised amongst the more advanced growers; and computer assisted services are used to help with these practices.

事实上世界上任何地方发展作物生产技术都包含相同的内容，即：利用土壤和植株测试服务预报氮磷需求，土壤结构改良的要求、pH及盐渍化程度、全蚀病的感染程度、作物出苗后追施氮肥的需要，等等；监控作物出苗后的发育情况已为更多的先进农民所采用；计算机辅助服务也用来帮助这些生产措施。

One, the United States promulgated American crop insurance and the brief history that calamity helps 1938 " law of confederative crop insurance ", insurance company of American confederative crop produces according to this law.

一、美国农作物保险与灾难援助的简要历史 1938年美国颁布了《联邦作物保险法》，美国联邦作物保险公司便是根据这个法律产生的。

The development of PC desiderates exact information gained by RS rapidly (Moran et al., 1997), hyperspectral technology which acts as the hot and frontier of RS in the world, is showing outstanding potential in agriculture because of its ability not only to monitor crop and some of its surroundings timely, nondestructively in a big area as the normal RS technology does, but also improve the classification precision and accuracy of agriculture resources and supervise and analyses crop growth and the factors related with crop yield by spectral precision predominance.

精确农业的发展迫切要求遥感技术提供快速、准确的地表信息（Moran等，1997），高光谱遥感技术作为国际遥感科学领域的研究前沿和热点，由于其既具备常规遥感对农作物及其生长环境监测的大面积、适时、非破坏性等优点，同时又能够通过其精细光谱优势提高农业的分类的精度和准确性，动态地监测和分析作物的健康状况与影响作物产量的环境因素，因此其在农业领域已表现出非凡的研究潜力。

"The loss of earnings for this crop year may be in the region US$10 million, for the producers and coffee dealers, and will cost the CIB some J$30 million to J$50 million, relative to the original crop projections of a typical crop year," said Gentles.

相对于通常一个普通咖啡年度的产量预计来说，本年度咖啡农及咖啡商的收益损失将会在1千万美元左右，咖啡工业委员会也会因此损失3千～5千万牙币（1美元=89牙币左右）。

This paper based on Precision Agriculture development of China, and focused on several key problems for developing Precision Agriculture, especially field spatial information distribution processing method. The trail farm is located in Shunyi, Beijing. The area is 11 hectors. We sampled the soil, and got soil spatial distribute data , crop growing status distribute data (such as crop population, crop height, plant dry weight), yield distribute data (such as yield per mu, ears per mu, seeds number per ear, weight of thousand grain, plant yield).

本文在探索我国精细农业发展道路的基础上，以当前开展精细农业实践急需解决的关键问题之一—农田空间分布信息处理方法研究作为切入点，通过对北京顺义&三高&农业示范区一块面积约11公顷的农田进行了定点采样试验，得到土壤空间分布信息、苗情分布信息（株数、株高、地上干物重等）、产量分布信息（亩产量、亩穗数、穗粒数、千粒重、生物产量等）。

The results showed that the best ratio of male parent to female parent was 1:3, and 210 kg/hm2 N fertilization was better. It indicated that hybrid seeds production in two crop seasons, especially the second crop season based on the utilization of ratoons of flue-cured tobacco which regenerated after hybrid seed was harvested in the first crop season, was beneficial to higher seed yield, lower cost, and less laborers employed as well.

结果表明，烟草杂交制种父母本比例以1：3较好；在中等肥力田块制种头季以施纯氮195~210kg/hm2较理想；利用头季杂交种收获后萌生的腋芽进行杂种二季制种在提高杂种种子产量，降低劳动量和生产成本等方面具有较理想的效果。

A definition of crop condition can be defined by its individualities and group characteristics. Two models were developed for crop condition assessment and diagnosis based on vegetation index and crop surface temperature.

该文以冬小麦为例，根据实地调查与北方数省的资料，用作物的个体与群体特征定义作物长势，讨论了遥感监测的可能性，提出了基于植被指数与植被表面温度的长势遥感监测的评估模型与诊断模型的概念与算法。

To detect the position of crop-rows, a method based on Hough transform and connected component labeling was put forward. First, a true color image of field crops was processed with gray histogram and OSTU respectively. Then the noises in the image were eliminated by means of eight connected component labeling according to their areas. The centroid coordinates of each labeled crop were computed after the second labeling, through which the center line of the crop-row was regressed by Hough transform. Experimental results show that the method is effective.

该方法分别用直方图法和最大类间方差法二值化图像后，经过8连通区域标记后据其面积属性去除噪声，然后再经一次标记后找出各标记作物的重心点坐标，最后通过Hough变换检测过重心点的直线，即到得到过作物行的中心线，试验结果表明了该方法的有效性。

But this is impossible, as long as it is engaging in a market economy, there are risks in any operation.

但是，这是不可能的，只要是搞市场经济，是有风险的任何行动。

We're on the same wavelength.

我们是同道中人。