Available phosphorous

Analysis on Testing Method of Available Phosphorous in Soil

土壤有效磷测试方法浅析

The available phosphorous content was 388 mg kg-1 in soil with pH 9.21 .

土壤中有效磷含量为388mgkg-1，pH为9.21。

Organic matter and available phosphorous the second ;

其次是有机质和速效磷；

The level of available phosphorous of the soil and the rational application of fertilizers for winter wheat

土壤供磷水平与冬小麦合理施肥

Effects of phosphate-solubilizing fungi on costal saline soil available phosphorous content and salt-tolerant oil plant growth

解磷菌剂对海滨盐土有效磷含量及耐盐油料植物生长的影响

The second and third years gave the highest soil organic matter , total N , available phosphorous and potassium contents .

利用第2年和第3年的老芒麦草地的土壤有机质、全氮含量和速效磷、速效钾含量最高。

The content of available phosphorous was higher in main belt and planting belt of non timber product forest and farm forest belt .

速效磷在基干林带、经济林种植带和农田林网土壤中含量较高；

The available phosphorous situations in soils of Guangdong province are narrated approximately as vegetable soil > paddy soil > orchard soil .

阐明了广东省不同耕作制下，土壤速效磷含量差异很大，大致为菜地土壤>水稻田>果园土壤；

Saline-alkali tolerance PSBs can not only adapt to alkaline-saline soil environment , but also improve the available Phosphorous and change the soil quality .

耐盐碱解磷菌不仅能适应盐碱土环境，而且能提高盐碱土的有效磷含量，改善土质。

The main source of soil available phosphorous i-P , Ca-P and organic phosphorous in the soil inorganic phosphorous from gradual regression .

由逐步回归得出土壤无机磷中的O-P，Ca-P以及有机磷是土壤有效磷主要磷源。

Among 5 kinds of soil nutrients , the distribution of available phosphorous showed higher homogeneity , the ones of other 4 nutrients showed higher heterogeneity with more complicated patterns .

5种土壤养分中，有效磷含量分布呈现出较高的均质性，其余4种养分分布格局较为复杂，表现出较强的空间异质性特征。

The results showed that utilization periods had a obvious influence on the content of organic matter , total N , available phosphorous and potassium in 0 ~ 20 cm Elymus sibiricus pastureland .

结果表明，利用年限对老芒麦草地0~20cm土壤有机质、全氮、速效磷和速效钾含量影响较大。

The variation coefficients of organic matter , total nitrogen , hydrolyzable nitrogen , available phosphorous and rapid available potassium are respectively 34.76 % , 41.18 % , 54.50 % , 78.76 % and 78.34 % .

分析结果表明：雷竹地土壤养分差异较大，33个林地土壤有机质、全氮、水解氮、有效磷和速效钾含量的变异系数分别达到34.76%、41.18%、54.50%、78.76%和78.34%。

The result showed as follows : Contents of organic matter of soil , total phosphorus , rapidly available phosphorous and several kinds of primary enzymatic activity of soil , microbial amount existed dimensional change in accordance with the distance of trees .

结果表明，土壤有机质、全磷及速效磷含量和几种主要土壤酶活性、微生物数量存在离树距内的空间变异。

In the combined fertilization of organic and phosphorous fertilizers , the residual phosphorous rate ranged between 68.3 % and 69.7 % and the total phosphorous and available phosphorous increased by 5.3 % ~ 26.6 % and 200 % ~ 207 % compared with those in their single fertilization ;

与P素配施P残留率68.3%～69.7%，土壤全P、速效P比单施提高5.3%～26.6%和200%～207%；

The content of soil available phosphorous was positively correlated with that of soil total phosphorous , in organic phosphorous , Fe-P , Ca-P , organic phosphorous Al-P. and it was significantly correlated with the content of soil total phosphorous , in organic phosphorous Fe-P , Ca-P.

土壤有效磷与有机磷量、Al-P呈正相关，而与土壤全磷量、无机磷、Fe-P、Ca-P呈极显著正相关。

A Study on Relationship Between the Spatial Variability of Saline Anthropogenic alluvial Soil Available Nitrogen , Phosphorous , Potassium and Cotton Growth

盐化灌淤土壤速效氮、磷、钾空间变异性与棉花生长关系初步研究

The study achieved simulated precision recommendation fertilization of available nitrogen and available phosphorous with Geographical Information System ( GIS ) and Computer Recommendation Fertilizer System ( CRFS ) .

此外，借助地理信息系统和计算机推荐施肥系统进行了土壤氮磷养分的精准推荐施肥量模拟的应用研究。

The soil organic matter , total nitrogen , total phosphorous , available nitrogen , available phosphorous and available potassium of mixed forest were higher than those of pure stand of Cunninghamia lanceolata .

混交林林地土壤有机质、全氮、水解氮、速效磷、速效钾含量均高于纯林土壤。

The spatial variability of available soil nutrients were mainly affected by structural factors but chance factors affected alkali-hydrolysable nitrogen and available phosphorous more than available potassium .

土壤速效养分的空间变异性主要受结构因素影响，但碱解氮与速效磷受随机因素影响强于速效钾。