crop system 中文意思是什麼
crop system
解釋
作物制度-
The gvg system is the sampling lineage system to extracting crop acreage information
Gvg系統是一種快速準確的野外采樣系統。 -
In this paper, two major types, the natural vegetation and crop vegetation in luota are studied. we can gain the different distributive area by remote sensing technology, in accordance with conifer forest, broadleaf forest, thick shrub forest, shrub forest, herbs shrub forest, herbs naked rock and crop vegetation. the valuation of the output of standing trees, water conserbancy, soil conserbation to control erosion and purify the air is the main basis which is used to value the functions of the forest ecosystem of the conifer forest and broadleaf forest of luotathe result reveal that the total ecological function value of the forest which area is 1388. 8 hm2 is estimated up to 18. 36 million yuan per annum. the synthetic valuation system of luota vegetation is put forward by the valuation of per hm2 in evergreen - deciduous forest, conifer forest, conifer and broadleaf forest, broadleaf forest, scatteredtree - shrub forest, coppice - shrub forest, herbs shrub forest, econamic crop and cereal crops. the plant resources is valued according to the ornamental and green plant. lumber trees and medical plant. ornamental plant includes hosta plantaginea. lilium brownii van viridulum, spiraea cantomiensis and so on. lumber tuees includes zzzelkova schneideriana, emmenopterys henryi, catalpa fargesii and so on
本文把洛塔現存植被分為自然植被與栽培植被兩大類進行研究，通過遙感技術對現存植被按針葉林、闊葉林、密灌、灌叢、草灌、荒草裸巖、農作物植被等類型進行分佈面積的統計，在此基礎上，以林產品價值、涵養水源價值、保護土壤價值和凈化空氣價值作為估算的主要參考依據，對已成林的針葉林與闊葉林進行森林生態系統的價值估算，得出面積為1388 . 8hm ~ 2的針葉闊葉林的森林生態價值為1836 . 37萬元，參照這一生態價值量，把洛塔植被按常綠落葉林、針葉林、針闊混交林、闊葉林、疏林?灌叢、矮灌叢、荒草灌叢、經濟作物和糧食作物，以每hm ~ 2的價值量提出了洛塔植被的綜合價值體系。 -
Wheat was the dominating crop in aspects of both the growth and mn nutrients competition either in wheat - rape or in wheat - chickpea intercropping system, but the growths of rape and chickpea were suppressed by wheat. root barriers did not affect the total shoot dry weight in wheat - oat system, but the total mn uptake was lower in no barrier treatment ( mixed cropping ) than in solid barrier treatment ( mono cropping )
在本試驗條件下，小麥與油菜或鷹嘴豆混作能顯著改善小麥的生長及錳營養，其地上部干重及吸錳量均以根系不分隔處理顯著高於根系完全分隔處理；油菜和鷹嘴豆的生長受小麥抑制，均表現為不分隔處理的地上部干重及吸錳量顯著低於完全分隔。 -
Description : alfa - alfa integrated in the no - till system. as the crop remains in place during 3 - 4 years, various cover crops are intercropped o keep enough residue cover. epagri
免耕種植的紫花苜蓿作物殘茬可以在田裡保持3 4年，不同作物間作提供了足夠的殘茬覆蓋。 -
The study on shading effect under poplar - crop intercropping system
楊糧間作系統中林木遮蔭作用研究 -
It cannot be expected that this system of farming would produce any very extraordinary or luxuriant crop.
不能指望這種寄養制度會結出什麼了不起或豐碩的結果。 -
A study on distribution law of microclimate factors in poplar - crop intercropping system
楊糧間作系統小氣候水平分佈特徵研究 -
This approach seeks to use various sources of plant nutrients, mineral fertilizers, organic manures, crop residues and biological nitrogen fixation for each farm ' s cropping system and offers the farmers the best opportunity for sustainability while protecting the environment and conserving the resources
這一方法，為每個農場的種植制度尋求利用各種植物養分資源，諸如礦質肥料、有機肥料、作物殘體和生物固氮，並且在保護環境和資源的同時，給農民提供更好的持續發展生產的機會。 -
Soil conservation, cropping system, crop nutrient management
水土保持及農作物系統專家 -
Analyses of sowing dates and heat conditions in cultivation of fresh - cooking maize quot; zhongyunuo quot; no. 2 under three - crop year system in shanghai area
中玉糯二號在上海地區一年三熟栽培播期和熱量條件分析 -
Development of intelligent decision support system for greenhouse crop growth management based on the database
基於數據庫的溫室作物生長管理智能決策支持系統的研製 -
Based on the experimental results, several measures including the selection of high - yielding, high nutrient - efficiency variety, correct crop management practices to increase harvest index and returning rice straw to soil were suggested to keep nutrient ( particularly k ) balance in soil - crop system with high - yielding rice production
根據試驗結果推薦了幾項高產措施，包括選用高產、高養分利用率品種、改進作物管理措施以提高收獲指數和稻草還田，在水稻高產生產土壤作物系統中保持養分（尤其是鉀）平衡。 -
The aim of the field experiment was to investigate to what extent such a system could prevent soil degradation resulting from very intensive crop rotations
此次田間試驗的目的，是研究這一方法能在多大程度上防止由於精細的作物輪作所產生的土壤退化。 -
The shading and its effect on crop yield under poplar - crop intercropping system
楊糧間作系統林木遮蔭面積和株行距研究 -
Effect of pruning on light density, yield and biomass of crops in poplar - crop intercropping system
國外混農林業系統中林木與農作物的相互關系研究進展 -
Thus there should be studies for finding an optimal fertilizer schedule based on a cropping system including intercropping systems rather than for a single crop only
因此，應該研究包括間作在內的種植制度而不僅為某種作物尋找合適的施肥方案。 -
Firstly, the crop - environment system was abstracted as many subsystems and physiological processes with object - oriented paradigm while many classes were established to simulate the behaviors of these subsystems and physiological processes. in vrgm, the document - view architecture in visual c + + was extended as model - document - view architecture for agricultural integrated system. in the model - document - view architecture, document gets the final simulation results by manipulating the models classes and acts as a communicating intermediacy between model and view
首先利用面向對象的編程設計方法，將作物一環境系統抽象為多個子系統和多個生理過程，分別設計多個類模擬這些子系統和生理過程的功能，由於面向對象方法的封裝性、繼承性和多態性，類與類之間既相互獨立，又通過類間介面彼此相互關聯，使系統易於維護、擴充和重新開發利用。 -
The ultimate purpose of establishing the irrigation information management system is to accomplish the automation and information of the irrigation process, to promote the efficiency of water use, to increase the yield and improve the quality of crop, which is the inexorable trend of the future development of the irrigation agriculture
建立灌溉信息管理系統的最終目的是實現灌溉過程的自動化和信息化，提高水資源利用效率，增加作物產量，提升作物品質，這也是未來灌溉農業發展的必然趨勢。 -
Rubber tree ( hevea brasiliensis ) is an important economic woody - crop in tropical areas. its latex is the unique source of crude rubber used in current industry. because of its special and important use, the rubber tree has been extensively planted in tropical areas. increase production is always the main target in rubber tree cultivation. since the ethrel was applied in increasing latex production in 1968 for the first time as a chemical stimulant, not only the latex production had been increased largely, but also a new set of rubber tapping system had been established, leading to a series of economic benefit. owing to ethrel " s extensive application, its side effects had been found more and more obviously, such as tapping dry, speeding up senescence, shortening the life span of rubber tree etc. in order to overcome the side effects and increase production more availably, for a long time, people had carried out lots of research work on cell level, membrane level, physiology and biochemistry of laticifer contents. but the mech anism why ethrel increased latex production was not yet understood completely. this study had cloned the ethylene receptor gene ( efrl ) from rubber tree, and researched the relationship between etrl expression in laticifers and ethrel stimulation on transcription level and protein translation level. the results were as follows : 1
但是，由於乙烯利應用的普及，乙烯利刺激割膠引起橡膠樹發生死皮病及加速膠樹衰老，縮短膠樹壽命等副作用也越來越明顯。為了克服這些副作用，使乙烯利能更有效地刺激增產，長期以來，人們在細胞水平、膜水平和乳管細胞內含物的生理生化層面上進行了大量的研究，但仍未完全了解乙烯對膠樹的作用機制。本研究從分子水平入手，克隆橡膠樹的乙烯受體基因（ etr1 ） ，並在轉錄水平和蛋白質翻譯水平上研究etr1基因在乳管細胞中的表達及與乙烯刺激的關系，取得了以下結果： 1 -
Functions of the correlative analysis, multiple linear regression method and stepwise regression method in identifying environment - affecting factors were compared. with baiyin city of gansu province as an example for analysis, the three methods were used to identify environment - affecting factors of heavy metal pollution of the soil - crop system in the suburbs of the city. based on results of the experiment, indexes were proposed for selecting plans for remedying contaminated soils in the region under research
我國北部中小城市採暖鍋爐的使用比較普遍，鍋爐煙塵監測仍然是一項主要的大氣污染源監測之一.該項監測必須具備一定的專業技術知識和實踐經驗，初學者不易全面掌握.結合多年的監測實踐經驗，闡述監測采樣中的一些問題和對異常情況的分析
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