crop growing season 中文意思是什麼
crop growing season
解釋
作物生長季節-
Analysis of net assimilation rate and crop growth rate indicates that two peaks of photosynthetic activity occur during the growing season.
凈同化率和作物生長率分析表明，在生長季節出現兩個光合活性高峰。 -
Many parts of the world get rainfall in the summer growing season to support a dry land crop
在世界上的許多地方，在夏天的種植季節降雨以供給水分給土地上的作物。 -
Acceding to the theory of crop water requirement, maximum potential evapotranspirations are calculated by applying fao penman - monteith method, and then we obtain the water requirement, water balance and water correction factors ect. of main crops ( spring maize, summer maize, spring wheat, winter wheat, cotton ) and different type grasslands, and the space - time distribution regularities of water requirement of cropland and natural grassland are analysed, the result show : the water requirements of same kind crop in different areas are different, water satified degrees are different to different crops in the same area, and water requirement of same crop are different between years for climatic variation ; the water requirements of main crops are increasing from east to west and from south to north, water satified degrees are decreasing from east to west and from south to north. in growing season, there are deficits in crops water supply in most area, so the irrigation is needed to meet the requirement for crop growing normally
根據作物需水的理論和方法，採用計算精度較高的faopenman - monteith方法（ 1998 ）計算了半乾旱區最大可能蒸散，並基於此計算五種主要旱地作物（春玉米、夏玉米、春小麥、冬小麥、棉花）和不同類型的天然草地的需水量、水分盈虧、水分訂正系數等，分析了農田和天然草地水分供需的時空分佈規律，結果表明：不同地區同一種作物的需水量是不同的，同一地區對不同作物的水分滿足程度是不同的，而且同一種作物在同一地區隨著氣候的變化需水量也會有一個年際變化；主要作物需水量由東向西，由南向北遞增，正常生長發育的水分保證程度由東向西，由南向北遞減。 -
In the northern wheat growing areas, most of the water used by the wheat crop falls before the growing season and the crop is grown mainly on stored moisture from fallowing
在南部小麥栽培區，大部分雨水分佈在4至10月份之間，這是小麥大致的生育期，盡管也有一些地區土壤水分是靠休閑時儲蓄的。
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