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- Soil total N content 土壤总氮含量
- Cattle manure application could decrease nicortine and total N content, while to increase the content of Cl, toatl sugar and deoxidize sugar of tobacco leaf. 施用牛圈肥有降低中部和下部烟叶烟碱和总氮含量的趋势,而总糖、还原糖则有增加的趋势;
- The new compound fertilizer also helped improve the qua lity of peanut fruit, increased the total N content in the peanut field and enha nced its fertility. 且该肥增加花生地中土壤的有机质和全氮含量,从而提高土壤肥力。
- The total N in tiller under grazing was higher than that of ungrazing (P0.05).The total N content in tiller was negatively interrelated with that of biomass. 分蘖节的含氮量与生物量呈负相关,放牧处理下月平均含氮量显著高于对照区(P0.;05),而放牧区重度放牧的含氮量显著大于中牧区。
- Nitrate reductases activity of leaves are increased under the mulching practices, while total N content of leaves is decreased, and the N absorption amount per 100 kg yields is reduced significantly. 覆盖可增强叶片硝酸还原酶活性,降低叶片中的全氮含量,显著降低每百千克产量氮肥吸收量。
- The plant fresh weight and dry weight of the cabbage grown in the coir-based media, the total N content of the shoot, as well as leaf chlorophyl content and N-photosynthesis efficiency... 新型椰糠复合基质盆栽小白菜的鲜重、干重、叶片叶绿素含量、植株含N量以及光合氮效率等指标均高于对照泥炭复合基质配方的,且加营养液供肥方式效果比在基质中一次性加入固体复合肥的供肥方式的好。
- Keywords remote sensing;black soil;soil organic matter(SOM) content;Total N content;Total Fe content;soil spectral character;ASTER image;TM image;retrieval; 关键词遥感;黑土;有机质含量;全氮含量;全铁含量;土壤光谱特征;ASTER遥感影像;TM遥感影像;反演;
- soil total N 土壤全氮
- 4) The index of sugarbeet resistance to N stress had a significant positive correlation with leaf area,chlorophyll and total N content. 4)甜菜的抗氮胁迫指数与叶面积、叶绿素含量和全氮量呈显著正相关。
- Maize straw returning to the field can increase the soil total nitrogen and inorganic nitrogen content. 秸秆还田增加了土壤全氮和无机氮含量。
- The content of total N,NH + 4 N and NO - 3 N varied widely with different organs because of the effects of soil water,nutrient content, atmospheric temperature,vegetable feature and selective absorption to nitrogen,etc. 受土壤水分、养分、气温和植物本身特点及其对N素选择吸收作用等多种因素影响 ,小叶樟、毛果苔草和漂筏苔草 3种植物不同器官中‘三氮’含量变化较大 ,NO-3 N比NH+4 N含量稳定且NH+4 N/NO-3 N >1;
- The soil organic matter and total N stabilize basically, available P increase while alkaline hydrolyze N decrease obviously in the cornrice rotation. 玉米、稻连作土壤有机质和全氮基本稳定,有效磷呈上升趋势,碱解氮和速效钾下降趋势明显。
- The result showed that the soil available N content of the vineyard a low and in grade 5 while that was in grade 3 in the kaleyard. 结果显示:东丽区葡萄园的速效氮含量较低,处于5级;
- Corn economic yield and biological yield were significantly related with soil organic matter, total N, alkali-hydrolyzable N, total P, and availabl P. 玉米产量及生物量与土壤有机质、全氮、碱解氮、全磷、速磷相关性达极显著或显著相关。
- The content of total N and total P in rainfall could be increased by Pinus tabulaeformis and Rhus typhina. 油松、火炬能够增加降雨中总氮、总磷的含量。
- The results show that soil total P (P T), inorganic P, organic P, Olsen P and Bray P are high in MNPK, 1.5 (MNPK), MNPK (Soybean) and M treatments, followed by NP, PK, NPK, and SNPK treatments, and low in the treatments without P (N, NK and CK 2). 结果表明 :长期施磷 ;特别是磷肥和有机肥配合施用能明显提高土壤全磷 (PT)、无机磷、有机磷、Olsen- P和 Bray- P含量 .
- The soil organic matter and total N stabilize basically,available P increase while alkaline hydrolyze N decrease obviously in the cornrice rotation. 玉米、水稻连作土壤有机质和全氮基本稳定,有效磷呈上升趋势,碱解氮和速效钾下降趋势明显。
- The content of Total N, Total P and Total K of Cole respectively increases 16.8%, 20.7%, 8.5% comparing with the area of reference. 固氮菌肥对油菜植株养分的影响较为明显;油菜植株含氮、含磷、含钾含量比对照区分别增加了16.;8%25、20
- Soil total organic carbon(STOC) under broad-leaved and bamboo forest were considerately higher than (P<0.05)those under masson pine and Chinese fir. 结果表明:土壤总有机碳含量常绿阔叶林和毛竹林显著高于杉木林和马尾松林。
- In the total N absorbed by crops 33.9% was absorbed by wheat and 66.1% by corn. 带田适宜施氮量为385.;5 kg hm-2:在作物总吸收N量中;被小麦吸收的氮占33