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- Compared with CK, soil available P increased by 10-fold and 3-fold with the treatment of NPKM and NPK+straw, and 3-5 fold with NP, PK and NPK. 氮磷钾配施有机肥速效磷含量比不施肥增加10倍以上,而氮磷钾配施秸秆比对照增加3倍;
- Soil organic matter,available Ca,Mg,S,Fe,Mn,Cu and Si were abundant,while available N,Zn and B were deficient,and the deficiency rates were 62.5%,62.5% and 87.5% respectively. The CV(coefficient of variation) of soil available P and K changed greatly. 有机质、有效钙、镁、硫、铁、锰、铜以及硅的含量均较丰富; 碱解氮、有效锌、硼普遍缺乏;其缺乏数分别占总样本的62.;5%25、62
- Soil available P 土壤有效磷
- Applying OHA together with P optimized P distribution in soil and increased the ratio of available P in soil. 腐磷搭配能优化磷素在土壤中的分布，提高土壤空间有效磷的比率。
- 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。
- However, when the available P was excessive in soil, the input of organic manure had to be quantified according to the input of P from organic manure. 有机肥施用于新菜田应考虑“以氮定量”的原则，而施用于土壤有效磷过量累积的老菜田，应采取“以磷定量”原则，来控制有机肥中的磷素投入；
- 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 soil available N, P and K and soil bulk density of vineyard in Dough and kaleyard in Beichen were analyzed in order to enhance crop yield and quality. 摘要为了提高作物的产量和品质，做到配方施肥，采集了天津市东丽地区葡萄园和北辰区菜园土壤样本，测定了土壤速效氮、速效磷、速效钾的含量以及土壤容重。
- Result of experiment indicated that:1) Significant interactive effects of the soil available value of P, K, Fe,Cu and Zn determined by the method of ASI and of conventional analysis ,were obtained from the experiment. ASI法土壤有效P、K、Fe、Cu、Zn、Mn测定值与常规化学分析方法土壤有效P、K、Fe、Cu、Zn、Mn测定值之间相关性显著。
- Variation of soil organic phosphorus fractions, and relationship of organic P and its fractions, with soil organic matter and readily available P were studied with Bowman-Cole method. 采用Bowman和Cole提出的有机P分组方法,对长期施肥条件下土壤有机P的组成变化以及有机P及其组分与有机质、速效P的关系进行研究。
- The content of soil available Sulphur was decreased after harvesting cole and radish. 另外种植油菜和四季萝卜的土壤，有效硫的含量较种植前略下降；
- The soil nutrient of Karamay was analyzed with 7 indexes of organic matter,total nitrogen,total phosphorus,total potassium,hydroly N,available P and available K as evaluation indexes. 分析测试了克拉玛依中心城区不同类型园林绿地23个样地的土壤养分状况,分析克拉玛依区绿地土壤有机质、全氮、全磷、全钾、有效氮、有效磷和速效钾的含量及分布异质性。
- And the increase rates of soil available phosphorus and slowly available phosphorus were MCSWFC＞CSU＞SFC. 土壤速效磷、缓效磷的增幅均为田菁水植养鱼处理＞田菁旱作处理＞蓄淡养鱼处理。
- The contents of soil alkalized-N and available P are also increased with the fertilizer application, which are useful for the nutrients’ uptake, root growth and biomass accumulation. 施用氮、磷肥能够增加土壤碱解氮、速效磷的浓度，有利于玉米根系对氮磷营养的吸收；
- Soil fungi number and urease activity were negative correlation with soil available potassium content. 土壤真菌数量、脲酶活性与有效钾含量呈负相关。
- Yet despite this build-up of available P, the wheat was still responding to small amounts of seed-placed P. 然而，尽管有效磷在不断增加，但小麦仍对低用量磷肥种肥有反应。
- Soil culture results showed soil available sulphur had been increased significantly after different sulphur ferti1izer were appl ied. 土壤培育试验结果表明，不同硫肥品种施入土壤后，土壤有效硫含量明显升高，在培育1周时有效硫含量达到最高值，并随着培育时间的延长，土壤有效硫含量表现出先升高而后降低的趋势；
- The results showed that organic matter (OM), total N and alkali-hydrolyzable N enriched apparently, but total P and available P did not enrich. 结果表明：土壤受侵蚀后，有机质、全氮和碱解氮流失的“富集”现象明显，而全磷和速效磷却无明显的“富集”现象。
- 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；
- Available N deficit is highest while accumulated available P is lowest in Salsola nitraria Pall among the six halophytes. 6种植物中，钠猪毛菜根际土有效氮亏缺最高，有效磷富集也最少。
