crop pattern 中文意思是什麼
crop pattern
解釋
作物布局-
Main results are generalized as follows : in dry year, coupling fitness of water requirement to rainfall reaches 90 % for sorghum and spring millet during crop ' s growth and reproductive season in shunyi county, while 85 % for peanut and soybean, 70 % for spring com and cotton, 65 % for alfalfa, and 55 % for cropping pattern of rice followed by wheat
主要結論包括： 1 ）順義區乾旱年型下，高粱和春谷全生育期需水與降水的耦合度達到90 ；花生和春大豆其次，達到85 ；春玉米和棉花為70 ；苜蓿65 ；水稻和冬小麥?夏作物組合耦合度只有55 。需水量和灌溉定額則與耦合度大小相反。 -
In the most ration of water supplying, yield of crop was enhanced when irrigation ration was increased no matter what planting pattern was applied
無論哪種種植方式，在最大供水量的范圍之內，灌溉定額大，作物的產量水平就高。 -
Biodiversity exists among am fungi and is influenced by numerous factors including soil properties and plant species. if am fungi are to be used in sustainable agricultural systems it is necessary to study native am fungi in the target areas and then select efficient isolates that can be applied as inocula in the field to improve crop growth. the objectives of this study were to investigate the germplasm of am fungi, to understand the distribution pattern of am fungi in different ecological conditions such as area, soil factor and host plant, to select isolates effective in nutrient acquisition by the host plant sweet potato, to test their effectiveness under field conditions, and to monitor amf after their introduction into the field
本研究通過調查我國北方部分地區的am真菌資源，研究了am真菌的種群組成及其在空間、土壤利用方式和宿主植物類型等不同環境條件和空間尺度上的分佈規律；在此基礎上，根據它們對甘薯的生長、吸磷效應篩選出高效菌株，在大田條件下研究了am真菌菌絲的分佈特性、代謝活性及其對甘薯產量和品質的影響；並通過分子探針跟蹤調查了引入am真菌在共生體中的發育和表達，以期為菌根真菌的生產應用提供技術支持。 -
This research was conducted to : ( 1 ) understand the characteristic and pattern of trickle source infiltration, ( 2 ) study mulched crop evapotraspiration for cotton and corn in a arid climate sandy loam soils. according to the researches of the dissertation, the main results are as follows : ( 1 ) the shape of wetted soil volume is influenced by soil texture, discharge rate and the total volume of applied water in case of trickle source infiltration
本文以粘壤土為研究對象，對微源入滲特性規律進行了系統的室內試驗研究，並且對膜下滴灌大田作物棉花和玉米的需水規律進行了野外試驗，得到了以下幾點結論： （ 1 ）地表微源入滲土壤濕潤體的形狀受到土壤質地、供水強度和灌水時間的影響，一般為半個橢球體。 -
According to the construction and management experience of the national key laboratory of crop genetic improvement for years, this paper analyzed and proposed a pattern including the laboratory accurate orientation and maintaining the research direction invariable, the prominent discipline characteristic and the conformity discipline superiority, the construction specialty management organized group and the reasonable academic echelonment, straightening out the relations of laboratory and the discipline construction as well as the laboratory with the university and so on
摘要結合作物遺傳改良國家重點實驗室多年來建設與管理經驗，分析並提出了準確定位並保持研究方向不變、突出學科特色並整合學科優勢、構建專職管理班子和合理學術梯隊、理順實驗室與學科建設關系以及實驗室與依託單位關系等實驗室運行機制和管理模式。 -
Drip irrigation under mul : h is a new irrigation method, as utiliz e the advance of drip irrigation and plastic film cultivation technique. the conditions influenced crop water requirement are changed in drip irrigation under mulch, thus crop water requirement pattern is different from conventional irrigation forms. it is very useful to research field mulched crops water requirement pattern watering with drip irrigation
膜下滴灌是地膜栽培與普通地表滴灌相結合的產物，在地膜覆蓋和滴灌的綜合效應下，作物的生長與在常規條件下不同，因此影響作物需水量的一些基本條件都發生了變化，對于膜下滴灌作物需水量和作物系數還需要做進一步研究。 -
Quickbird imagery for crop pattern mapping
高精度作物分布圖製作 -
Finding the maximum yield of a crop or cropping pattern will lead to many new and economically beneficial management practices that can have an important impact on china ' s agricultural production
找到最高產量作物或種植方式將產生許多新的、有經濟效益的管理措施，會對農業生產產生重要影響。 -
The annual double - crop rotation system, wheat and corn, is the most popular planting pattern in north china
華北地區小麥-玉米一年兩熟制是最普遍的種植模式。
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