查询词典 crop farming

Results show 1 the total water requirement of the crops in the Jinghe Watershed is 740543.20×10^4 m^3, accounting for 41.58% of the total water requirement of the region; 2 of the two major groups of crops, grain crops are higher than cash crops in water requirement quotas; and among specific crops, vegetables, melons, rice and cotton are higher and sunflower, potato and benne are lower than other crops; 3 water requirement per hectare varies from county to county with the highest being 5682m^3hm^(-2), in Jingyang County, and the lowest 4022 m^3hm^(-2) in Dingbian County, averaged to 4 583 m^3hm^(-2), but the water requirement quota of a crop does not vary with the county, so calculation of water requirement quota of a county is closely related to its cropping structure; and 4 because of serious waste of water in farming, the actual water consumption in agriculture in the region is much higher than the calculated crop water requirement.

结果表明，泾河流域农作物需水量总计740543.20万立方公尺，农作物需水占总需水量的比例较高，为41.58%。粮食作物需水定额较经济作物高；就具体作物而言，菜、瓜类、水稻、棉花等需水定额较高，向日葵、薯类、胡麻等较低。各县单位面积需水量差异较大，平均值为4583立方公尺hm^(-2)；泾阳县最高，为5682立方公尺hm^(-2)，定边县最低，为4022立方公尺hm^(-2)。由于事先设定大多数作物的需水定额不随县的改变而改变，因此需水量与作物结构密切相关。农业用水浪费严重，使泾河流域农作物实际用水量远高于需水量的理论计算值。

Alternate bearing is when a tree produces a heavy crop one year, called an "on-crop," followed by an "off-crop" the next year.

隔年结果指的是，前一年果树结出大量果实，叫做"结果"，而后面一年却"疏果"。

Partitioning the detail vegetation types, in the agricultural vegetation, annual harvest crop had a strongest sensitivity to precipitation, the follow was temperature and evaporation. Biannual harvest crop part of which could be irrigated or biyearly tri-harvest dry crop had a strongest sensitivity to temperature, the follow was precipitation and evaporation.

具体分植被类型来讲，农业植被中：一年一熟粮作植被对水分的敏感性最强，温度、蒸发次之；大部分具备灌溉条件的一年两熟或者两年三熟旱作农业植被，也对温度最敏感，对降水、蒸发的敏感性要弱一些；一年水旱两熟粮作植被对温度最敏感，蒸发、降水次之。

The selection of N-catch crop and the capacity of nitrate extraction from deep soil layer by catch crop were reviewed in the paper. It also pointed out that combining with N-catch crop in the rotation system had been regarded as a good approach for safe vegetable production.

过量施用的氮肥在自然降水或灌溉水的作用下，可通过径流损失造成地表水水体的富营养化；部分土壤中的NO-3 N可随水向下迁移污染地下水，在地下水环境中仍主要以硝态氮形式

Cover crop using Mucuna munaneae as the third crop in the cropping system; zero tillage using herbicide or hand pulling for weed control; mucuna foliage and crop residues are used for mulch.

在种植制度中，用黎豆属作物作为第三季覆盖作物。用除草剂或人工除草实施免耕，把黎豆属作物叶片和其它作物残体，作为覆盖物。

The results showed that the inhibitory effects of chemical deicers on the germination of crop seeds were obvious increasing trends with the increase of their concentrations.There was a distinct difference to the same crop species for the different types of deicers,whereas there was a distinct difference to the same deicer for the different crop seeds.

结果表明：随着融雪剂处理浓度的增加，其对农作物种子发芽的抑制效应呈显著上升趋势，且不同融雪剂品种对同种农作物品种发芽的影响呈现较为明显的差异，不同农作物种子对同种融雪剂的反应差异也较大。

Planting system of grain oil-bearing and fresh crop, planting index, per unit area yield, gross output, planting way and crop rotation system of the whole Tibet in different period, as well as the planting situations of agricultural districts of river valley such as Lhasa, Lhoka, Shikaze,etc. were analyzed. The main agricultural district of Tibet at present were summarized:(1) Crop composition and distribution is unreasonable;(2) The intensive cropping development is slow;(3) The planting mode is single.

通过分析全区不同时期种植指数，粮、经、饲作物结构，单产，总产，种植方式和轮作体制，以及拉萨、山南、日喀则等河谷农区的种植情况，概括和总结出目前西藏主要农区：(1)作物布局不尽合理；(2)多熟种植制的发展缓慢；(3)种植体制模式单一。

The reference crop evapotranspiration(ET0) in Guanzhong region was calculated with the Penman-Monteith equation. The change characteristics of meteorological factors and ET0 over year were analyzed. The regressing relation between ET0 and geography factors was established. Space distribution of ET0 based digital elevation model was obtained. The water consumption model of main cropes was established using the crop cofficient method. The irrigation water requirement of main crop and it's space distribution based DEM under the different precipitation probability was obtained, which advanced the calculation precision of ET0 from spot scal to regional scal. The concept of water consumption under the irrigational scal was proposed. The water consumption model of different water user and model of groundwater balance based on the water consumption of Baojixia irrigation district was established. Which can refects the relation between water utilization, water consumption and change amount of groundwater resouces.

深入分析了关中地区气象要素的变化趋势，用Penman-Montainth 公式计算了参考作物蒸发蒸腾量（ET0），建立了ET0与地理要素的多元回归关系，获得了基于数字高程模型DEM的关中地区ET0的空间分布图；用作物系数法建立了关中主要作物生育期耗水模型，获得了主要作物在不同降雨条件下的灌溉需水，以及基于DEM的主要作物灌溉需水空间分布图，提高了作物蒸发蒸腾量由点到面尺度转换过程中的估算精度；界定了灌区尺度的耗水量的概念，包括用水耗水和非用水耗水，建立了灌区耗水量计算模型及基于耗水量变化的浅层地下水均衡模型，能较好地反映灌区引水量、耗水量及地下水蓄变量之间的内在关系。

For example of the Shiyang River Basin along the Hexi Corrider,in Gansu province,made the imitial research of the major crop water production function and irrigation schedule optimal model,the results are following: 1Based on the related experimental datum gathered,drawing the relationship curve of several major crop yield and evapotranspiration,such as spring wheat,spring wheat-corn strip field,seed melon,sweet melon,cotton and flax and so on. The result shows these there:linearity and non-linear between crop yield and evapotranspiration.

本研究以甘肃省河西走廊石羊河流域为例，对其主要农作物的水分生产函数及灌溉制度优化模型作了初步研究，取得了以下成果： 1 根据收集的有关试验资料，绘制了春小麦、春小麦-玉米带田、籽瓜、白兰瓜、棉花和亚麻等几种主要农作物产量与耗水量的关系曲线，结果表明，产量与耗水量之间一般存在着线性与非线性的关系。

Firstly, the row crop and background were segmented by the excess green value. Secondly, the image strips were divided by crop image horizontally and the position was calculated by detecting the peak on the curve resulting from vertical projection of strips. Finally, the crop rows center lines were accomplished by robust regression.

对作物图像运用过绿特征值分割作物和背景，将得到过绿特征图像划分为若干水平图像条，对图像条过绿特征值进行垂直投影，求取投影曲线上突出峰点的位置；利用稳健回归法对位置点进行线性拟合得到作物的行中心线。

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。