spad 中文意思是什麼
spad
解釋
什帕德-
On one hand, the growth of spad and the activity of nr had no significant difference at 5 % level. the maximum of soluble sugar content of amaranthus tricolor and bidens maximowiciziana showed significant difference compared with the contrched samples
試驗結果表明，隨著pb處理濃度的增加，各種富集植物的葉片葉綠素值、可溶性糖含量和硝酸還原酶活性表現出相同趨勢，上升后又下降。 -
Meet jointly to the criteria of spad / ck > 0. 9, plant length / ck > 1. 00 and lead content > 500mg / kg, and they are claimed hyperaccumulators. 2. ecophysiological response of the hyperaccumulators
按以上標準篩選出6個富集pb的植物品種，分別是香根草、綠葉莧菜、裂葉荊芥、羽葉鬼針草、紫穗槐和蒼耳。 -
This research investigated the variability and the quantitative relationships among soil nutrients ( soil ph, total n, organic matter, available p ), growth status ( spad, lai and spad lai ) and yield of rice. all data were analyzed by both classical statistics and geostatistics based on gis. by further integrating gis, gps and crop management knowledge model, a decision support system for precision farming ( dsspf ) was developed, which laid a technical foundation for the practical application of precision farming system
本研究基於gis技術，以經典統計和地統計學為分析手段，確立了田區土壤養分（土壤ph 、全氮、有機質、速效磷、速效鉀） 、水稻作物長勢（ spad 、 lai 、 spad * lai ）和產量的空間變異特徵及定量關系；進一步以作物管理知識模型為智能決策支撐，提出了gis與模型及gis與gps的組件化集成技術，構建和實現了基於田區作物產量、土壤養分和苗情監測差異的精確農作決策支持系統（ dsspf ） ，為精確農作系統的應用奠定了技術基礎。 -
1, 2. 3, 4, 5, 6 respectively. with the increase of lead level, the changing trend of spad and soluble sugar content and the activity of nitric acid reverting enzyme ( nr ) had appeared the same direction, which ascended first and then fell
2植物對pb污染的生理生態效應為了揭示pb污染對富集pb植物的生理代謝活動的影響，測定了葉片葉綠素含量、可溶性糖含量、硝酸還原酶的活性和脫落酸含量等生理指標。 -
On the other, the decrease of spad and the soluble sugar content and the activity of nr of the hyperaccumulators appeared significant difference
但各種供試富集植物的aba含量一直呈上升趨勢，且差異顯著。 -
The concentration of lead treatment was 400mg. l " ", and the screened standards are spad of plant leaves, the plant length and the content of lead in plants
同時滿足條件處理葉綠素值對照葉綠值0 . 90 、處理株高對照株高1 . 00和處理含pb量500mg kg的植物做進一步的耐性試驗。 -
All parameters exhibited spatial correlation except for soil ph. soil total n and organic matter, spad, lai and spad lai were all positively correlated to rice yield
發現除土壤ph值外的其它土壤特性、作物長勢和產量都表現出空間自相關性，達到中等及以上強度；土壤全氮、有機質、 spad 、 lai 、 spad * lai與產量均達到極顯著正相關。 -
Effect of nutrient elements on lead uptake of hyperaccumulators. a little amount nitrogen and potassium can accelerate the growth of spad and plant dry weights, advance the lead uptake of hyperaccumulators. but with the increasing of nitrogon and potassium concentration, the lead uptake of plants droped, and spad and dry weights rose constantly
5營養元素n 、 p 、 k對植物吸收pb的影響少量的n和k會促進富集植物葉片葉綠素值和干重的增加，促進植物對pb的吸收，隨著n和k水平的增加，植物對pb的吸收能力降低，但k的抑制作用不如n的顯著，葉綠素值和干重一直在增加；土壤供p會降低植物對pb的吸收，且下降極顯著。 -
Kriged interpolation maps provided good indication of the spatial variability in crop yield and growth status. spatial interpolation and correlation analysis proved that spad lai was more indicative of crop growth status than individual variable, and useful for implementing growth season regulation and topdressing as needed
克里格插值圖可很好地描述作物長勢和產量的空間變異，空間插值分析與相關分析結果都說明，採用spad * lai二乘因子較之單個變量能更精確反映作物長勢，從而有助於實施產中調控和按需補給。
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