無土培養 的英文怎麼說
中文拼音 [wútǔpéiyǎng]
無土培養
英文
soil-less culture-
Then, main projects and synthetic techniques of ecological agriculture construction are discussed. the results indicate that main projects include fertile soil project, water conservancy, forestation and virescence project, agricultural structure adjustment project, agriculture industrialization project, integrated use of agriculture rejectamenta project, high quality and innoxious farm produce project, livestock breeding project, sight - seeing agriculture project, etc. the suited techniques include ecology location scheme technique, agriculture rejectamenta use technique, energy source regeneration technique, sewage biologic depuration technique, innoxious farm produce technique, soil fertility increase technique, ecological control technique of plant disease and insect pests, economizing water technique of dry farming, agriculture environment reconstruction technique, etc. lastly the study brings forward the countermeasure and advice of ecological agriculture development
根據我國生態農業建設成功經驗和濟南市目前生態農業建設基礎，提出濟南市生態農業建設重點工程為沃土工程、農田水利工程、造林綠化工程、農業結構調整工程、農業產業化工程、農業廢棄物綜合利用工程、優質和無公害農產品工程、養殖工程、觀光農業工程等;生態農業建設的關鍵技術為生態位配置技術、農業廢棄物資源化綠色技術、能源再生技術、污水生物凈化利用技術、無公害農產品技術、地力持續培肥利用技術、農作物病蟲草害生態控制技術、旱作農業高效節水技術及農業生態環境綜合整治技術等。The control of eutrophic water in pondsby floating - bed soilless culture of plants
浮床無土栽培植物控制池塘富營養化水質Hydroponics is an important plant method under greenhouse environment. the on - line detection of nutrient - liquid is a precondition of the intelligent adjustment and control for nutrient - liquid
無土栽培是設施農業中的重要栽培方法，營養液組分的實時檢測是實現無土栽培中營養液智能調控的基礎。67 - 154. 02 % ( no determinate in paddy field on quaternary red clay ), respectively. after organic amendments and fertilizers were added to the metsulfuron - methyl - contaminated soils, microbiai biomass c increased by 0. 23 - 113. 14 % in paddy field on desalting muddy polder, 0. 30 - 46. 48 % in blue clayed paddy, and 1. 82 - 83. 76 % in paddy field on quaternary red clay, respectively, microbiai biomass n in correspoading soils by 4. 27 - 67. 87 %, 5. 43 - 58. 36 % and 5. 05 - 95. 40 %, respectively, and microbiai biomass p by 6. 03 - 139. 59 % 4. 09 - 141. 26 % ( no determinate in paddy field on quaternary red clay ), respectively
（ 4 ）添加有機、無機物質后，勞去津除草劑污染的三種土壤中微生物生物量碳、氮隨培養時間變化的趨勢基本一致，即0 ~ 7d微生物生物碳、氮降低，但第7d時，添加有機、無機物質的處理中微生物生物量碳、氮均高於僅加養去津的處理和空白對照; 7 ~ 14d微生物生物量碳、氮迅速增加; 14 ~ 42d又下降， 42d后變化較小。Often those species that can be most easily bred are the most useless in reclamation.
往往最容易培養的種類在改良土壤中最無用。Pcr amplification using 2 degenerate primers for nitrogenase fe protein gene was performed with chromosomal dna isolated from the 29 isolates. the result suggested that a nifh amplicon of 323 nucleotides was detected in 7 isolates and the 7 isolates are c4 c5 g1 g2, w5 t1 and t7. these pcr amplified fragments were cloned, and sequenced
首先利用芽孢桿菌中芽孢的抗熱性將土壤溶液在100沸水中煮10 - 15分鐘，然後用選擇性無氮培養基進行初篩得到29株菌落形態不同的菌株；接著用固氮酶結構基因nifh的特異性引物對這29株菌進行pcr擴增，結果表明其中7個菌株具有nifh基因，這7個菌株的編號依次為： c4 、 c5 、 g1 、 g2 、 w5 、 t1和t7 。The paper fristly compared the fertile soil with the incinerated sterile soil on the number of micro - algae, soil ph value, soil organic matter soil available phosphorus and soil nitrogen. and then, the author put fertile soil, which included micro - algae, proportionally into sterile samples and cultivated them respectively under illumination condition ( micro - algae can live and reproduce ) and dark condition ( micro - algae will die in some time ). the above indices were measured in 0, 30, 60 and 90days respectively, the analyse of the interrelation between the change of micro - algae ' s number and the changes of soil ph value, soil organic matter, soil available phosphorus and soil nitrogen indicated : ( l ) soil micro - algae which were native to fertile soil conld adapt to the changed circumstance and light acted as a decisive role to the distribution of soil micro - algae. under dark condition, the micro - algae ' s number declined gradually and went to zero in the end, while under illumination condition, on the 90th day, the micro - algae ' s number of per gramme was 6 - 7 times more than that of the beginning
本文首先對肥沃土壤與經高溫焚燒后的貧瘠土壤中的微藻數量、土壤ph值、有機質含量、有效磷含量和全氮量進行比較研究，然後將包含微藻的綠化苗圃地肥土按不同比例接種進入貧瘠土樣中，分別在光照條件和黑暗條件下進行培養，在0天、 30天、 60天和90天分別檢測以上指標，比較有光條件和無光條件下，即有藻條件和無藻條件下貧瘠土樣所發生的變化，並分別對微藻數量的變化與土壤ph值、有機質含量、有效磷含量和全氮量的變化之間做相關性分析，以評估肥沃土壤中的微藻接種進入貧瘠土壤后的生長情況以及對貧瘠土壤的改良作用。研究結果表明： （ 1 ）土壤微藻對環境有較強的適應能力，且光照對其分佈起了決定性的作用。Results showed that by using straw and plastic film dual mulch in dry - cultivation of rice planting, both of the range of temperature difference and the loss of water in dry - cultivated field of rice were decreased, the soil structure was improved, the soil nutrient contents were increased, the ineffective tillers of rice plant were decreased, the growth and development stage were advanced, the filling stage was extended, the grain per ear and 1 000 grain weight were raised, the grain yield of rice increased obviously
水稻秸稈+地膜二元覆蓋旱作栽培效應的研究結果表明，秸稈+地膜二元覆蓋旱作稻田土壤變溫幅度降低，水分散失減少，結構改善，養分積累增加；水稻無效分蘗減少，生育轉變提前，灌漿結實期延長，穗大粒多，千粒重高，增產效果顯著。Research and application of disinfection techniques of nutrient solution in soilless culture
無土栽培營養液消毒技術研究與應用N sources ( including organic and inorganic n tested ) and c sources tested could restrain methane oxidation. cellulose inhibited methane oxidation most weakly while the high concentration of methanol and glucose did dramatically, but the proper concentration of methanol could stimulate soil methane oxidation sharply. in the middle process of methane oxidation, addition of glucose could restrain methane oxidation shortly but the inhibition could be relieved about 5 days later when supplied again with enough oxygen
土壤微生物是甲烷氧化的主要生物類群，含水量對土壤甲烷氧化活性有明顯影響，過高或過低對甲烷氧化均具有抑制作用；氮源（包括有機和無機氮源）對甲烷氧化均有抑制作用；不同碳源對甲烷氧化的影響各異，纖維素對甲烷氧化抑制作用最小，而高濃度的甲醇、葡萄糖則對甲烷氧化具有強烈抑制作用；而適當濃度的甲醇可極大促進土壤對甲烷的氧化：在甲烷氧化過程中加入葡萄糖能迅速抑制甲烷氧化；在加入葡萄糖的同時保持瓶中充足的氧氣，則這種抑制作用可以在重新培養一定時間后得到解除。Our aim is to provide reference data for the mechanism of the effects of ree on crops and the safety evaluation of re used in agriculture. 1. in soil culture experiment, re applications with appropriate dose in dry condition increased the contents of soil available n, whose no - effect value were 505mg / kg at eighth week, whereas higher levels of re had negative effects, re applications with both appropriate and higher dose in inundated condition reduced the contents of soil nh / - n and hydrolysable n. re treatment concentrations showed significant positive correlation with the contents of soil exchangeable re. and significant negative correlation with the contents of soil available p and soil ph value. there was no significant effects of re on soil exchangeable cations, but applications of re increased the contents of soil water soluble cations, especially that of ca2 * and mg2 +
兩種培養條件下，稀土處理濃度與土壤交換態稀土含量成正比，與有效磷含量、土壤ph成反比，對土壤交換態鹽基離子含量無顯著影響，但通過置換作用增加了水溶態離子，尤其是ca ~ （ 2 + ） 、 mg ~ （ 2 + ）離子的含量；第二周稀土處理增加交換態zn含量，對交換態fe有降低作用，旱培條件下增加交換態mn含量，淹水條件下對其有降低作用；第八周稀土處理均提高交換態fe 、 mn 、 zn含量，其機制主要與稀土降低土壤ph有關。Compared with zero - fertilizer, only organic fertilizer, or chemical fertilizer applications, compound organic and chemical npk fertilizer applications greatly enhance soil microbial biomass in the whole corn growth period, increase the supply of soil nutrient and benefit soil fertility buildup
研究結果表明，與無肥、單施有機肥、單施化肥相比，有機肥與n 、 p 、 k肥配合施用能顯著增加玉米各生育時期的土壤微生物量碳、氮，促進土壤微生物量顯著增長，增強了土壤養分容量的供應強度，有利於培肥土壤。Plant cloning technology combines cell culture and soilless cultivation with microcuttage so as to rapidly and numerously cultivate a variety of fine and rare sprouts in a short period and attain considerable economic benefit
植物克隆技術將組織培養、無土栽培與微型扦插三項技術有機結合、短期內可快速、大量地培育出各種優良、珍稀種苗，經濟效益可觀。Mixing nutrition needs specific control equipments and almost of all the equipments are introducing from overseas in our country now. this paper takes the system of nutrient liquid mixing and irrigating as its study object and the purpose of us is to produce new equipments which have property right and can replace the machines from overseas. based on the study of the characteristic parameters and the principles of realization we designed a new structure for the mixing and irrigating system and we have develop a new system which has quick response, easy operation and stability
無土栽培技術以營養液的配製和調控為核心，營養液的調配需用專門的控制設備，而目前這類設備仍以國外引進為主，針對這一情況本課題以營養液的配液供液系統為研究對象，旨在開發一種具有知識產權、能替代國外引進設備的自動配液供液設備，以達到既符合生產要求又降低生產成本的目的，並進而推動無土栽培技術的發展和普及。分享友人