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- 硝態(tài)NNitrate - nitrogen
- 本文用CID/6-31G~*和HF/6-311G~(**)方法,計算了基態(tài)N_2H~+離子的幾何構型,鞍點(diǎn),能量,力常數,振動(dòng)頻率以及離解能。The present paper is to provide the calculated results of equilibrium geometry, saddle point, energy, dissociation energy, vibration frequency and harmonic force field based on ab inition ca culations using CID / 6-31G~* and HF/6-311G~(**) methods for ground state N_2H~+.
- 硝態(tài)氮tric nitrogen
- 測定0.01molL~(-1)CaCl_2提取液中的可溶性有機態(tài)N對預測土壤N素礦化、合理推薦施肥及防止N素污染可能是一個(gè)很有前途的指標。The 0.01 molL~(-1) CaCl_2 solution extracted and released the labile organic N fraction. The determination of soluble org anic N in 0.01 molL~(-1) CaCl_2 solution looked promising as a property for prediction of N mineralization,N fertilization and N pollution.
- 硝態(tài)氮肥nitrate fertilizer
- 計算結果表明,在指定反應物分子的振動(dòng)態(tài)n_0、轉動(dòng)態(tài)j_0時(shí),兩個(gè)反應體系的反應截面隨相對平動(dòng)能的增加先是增加后是減小(j_0=1,n_0=0除外);We found that the reaction cross sections of the two systems first increase and then decrease as collision energy increases at given vibrational-rota- tional quantum number (n_0j_0), except n_0=0 and j_0=1;
- 硝態(tài)氯Nitrate-nitrogen
- 填閑作物的種植對下茬蔬菜產(chǎn)量及土壤硝態(tài)氮含量的影響Effect of Nitrogen-catch Crop on Vegetable Yields and Nitrate Content
- 施氮水平對高產(chǎn)麥田土壤硝態(tài)氮時(shí)空變化及氨揮發(fā)的影響Effects of nitrogen application level on soil nitrate accumulation and ammonia volatilization in high-yielding wheat field
- 亞硝態(tài)氮trite nitrogen
- 不同硝態(tài)氮處理條件下杉木樁提取物對杉木種子的化感效應Allelopathic effect of allelochemicals of Chinese fir stump on germination of Chinese fir seed treated with different sodium nitrate levels
- 土壤硝態(tài)氮soil nitrate nitrogen
- 累積硝態(tài)氮Accumulated nitrate-N
- 硝態(tài)氮累積Accumulation of nitrate nitrogen
- 硝態(tài)氮污染nitrate contamination
- 硝態(tài)氮分布nitrate distributing
- 硝態(tài)氮含量nitrate nitrogen concentration
- 硝態(tài)氮淋溶nitrate nitrogen leaching
- 硝態(tài)氮濃度nitrate-N concentration
- 硝態(tài)氮動(dòng)態(tài)nitrate-nitrogen dynamic
