1) exchangeable potassium
速效性钾
1.
Application of potassium ion-selective electrode in determination of exchangeable potassium in soils;
钾电极在土壤中速效性钾的测定中的应用
2) Available N & K
速效氮钾
3) Available potassium
速效钾
1.
The results showed that the average contents of soil total potassium(STK) and soil available potassium(SAK) were(21.
97)g/kg,速效钾的平均含量为(183。
2.
A field experiment was conducted to study the spatio-temporal variability of the soil alkali-hydrolyzable nitrogen, available phosphorus and available potassium from the middle of February to the middle of November in oasis cotton fields(0～100 cm soil player) in south Xinjiang, which cotton lint yields was 1991 kg·hm -2.
研究了新疆南疆荒漠绿州棉田皮棉产量1991kg·hm2水平下,2月15日至11月15日内,0～100cm土层土壤碱解氮、速效磷、速效钾的时空分布,0～40cm土层土壤碱解氮和速效钾含量分布特征趋势一致,由2月中旬-6月中旬逐渐升高,到5月中旬-6月中旬时达最大值,进入7月份后,均呈陡然下降特点,9月份开始回升;40cm以下各层土壤碱解氮和速效钾含量变化波动较小;土壤速效磷的时空变异特征,4月和5月,0～60cm土壤中的速效磷呈匀速上升,7月中旬达高峰,但20～60cm土层速效磷含量开始急速下降,9月中旬降至最低点。
3.
The temporal-spatial variability of soil available potassium (SAK) content in the Lianshui Basin was expressed by the spatial analytic approaches such as ordinary kriging (OK) and probability kriging (PK) on the basis of the software ArcGIS Desktop 8.
采用基于GIS普通克里格法和概率克里格法分析江西潋水河流域土壤速效钾含量的时空变异特征。
4) rapidly available potassium
速效钾
1.
The comparative analysis of ammonium nitrogen and rapidly available potassium between meadow soil and yellow red soil of Mount Wuyi;
武夷山草甸土与黄红壤铵态氮和速效钾对比分析
2.
Comparing with the data of the second general survey of soil, it was found the content of rapidly available potassium decreased from 70mg/kg to 50mg/kg and the area of potassium shortage increased 20 percent.
通过对太湖县耕地主要土壤类型的取样化验 ,分析了全县不同土种供钾状况 ,与第二次土壤普查数据相比较 ,速效钾由 70mg/kg下降到 5 0mg/kg ,缺钾面积增加了 2 0个百分点。
5) Available K
速效钾
1.
Soil conditions and formulated fertilization for major crops in Fujian Ⅱ. Sufficiency indices of alkali-hydrolyzable N,olsen-P and available K in Soil
福建主要粮油作物测土配方施肥指标体系研究Ⅱ.土壤碱解氮、Olsen-P和速效钾丰缺指标
2.
The total N and Hydrolytic N increased during the young stand stage and decreased in immature timber and increased again during the mature forest stage;but total P,available P,and available K decreased in the mature f.
通过对222个固定样地土壤跟踪调查及对79个针阔混交林的典型样地资料分析表明,随着林分年龄的延长,土壤容重、毛管持水量等物理性质有不同程度的提高,但土壤营养成份则各因素表现各异,其中有机质含量随林龄的增长而提高;全氮、水解性氮在幼龄林阶段有所提高,中龄阶段则下降,成熟阶段又提高;全磷、速效磷、速效钾则在成过熟林时有下降的趋势。
3.
The result showed that the change of available K was different in different soils.
结果表明:供试土壤中速效钾的动态变化特征各异,其"最低值"的大小和出现的茬数也不相同。
6) rapidly available K
速效钾
1.
Results showed that the concentration of dissolved K and amount of dissolved K, rapidly available K, and slowly available K lost in the runoff increase obviously with the increase in rain intensity.
结果表明,雨强(冲刷强度)增大,溶解态钾质量浓度,溶解态钾、缓效钾和速效钾流失量明显增加;在不同雨强的条件下,缓效钾、速效钾的流失量与坡度呈显著的指数函数关系;雨强对速效钾、缓效钾的富集率影响不大;雨强比坡度对缓效钾和速效钾的流失影响更大。
补充资料：速效性毒剂
分子式：
CAS号：
性质：能使人员染毒后很快(1～10min)出现中毒症状而丧失战斗力的毒剂。如沙林、梭曼、维埃克斯、氢氰酸等。其中能造成致死性杀伤的，也称速杀性毒剂(quick-killing agent)。速效性毒剂无潜伏期或潜伏期很短。
CAS号：
性质：能使人员染毒后很快(1～10min)出现中毒症状而丧失战斗力的毒剂。如沙林、梭曼、维埃克斯、氢氰酸等。其中能造成致死性杀伤的，也称速杀性毒剂(quick-killing agent)。速效性毒剂无潜伏期或潜伏期很短。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条