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- soil P supply 土壤磷供应
- However for P supply, DAP was found superior source and rock phosphate tended to be equally effective source of P in acid laterite soil. 不过对于磷素供应来说,磷酸二铵是最好的来源,磷矿粉在酸性红壤土上同样有效。
- There was a significant correlation between SMB-P and soil P fertility. 但单施氮肥加速了其周转。土壤微生物量磷能反映土壤磷素肥力水平。
- The P supply of composted cattle manure was most stable during the experiment. 磷肥容易被高钙底土固定,效果低于有机肥。
- Inorganic P(Pi) occupied the most part of soil P and accounted for 79.4% on average, then organic P(Po) accounted for 20.6%. 从磷的组成来看;本研究土壤以无机磷为主;平均占总磷量的79.;4%25;有机磷平均占总磷量的20
- Ranging between 0 and 10mmol/L, soil P release number was rising with the increasing of the extracting reagents' concentration. 的浓度范围内,随着酸浓度的增加,对土壤磷的释放效果在增强;
- Accordingly AOU was negatively related to P when P in the water column was supplied from outer sources and positively related to P when there was no P supply. 水体中的磷得不到补充时,AOU同磷呈现正相关。
- Soybean genotype with a shallower root system was advantageous not only for soil P uptake but also for N uptake by both crops. 浅根型大豆品种不仅有利于两种间作作物对土壤磷的吸收,同时还有利于对氮的吸收。
- Long-term fertilization could increase the P supply amount by SMB-P, there was a significant correlation between P supplying amount by SMB-P with maize yield and P uptake. 玉米生长季内土壤微生物量磷的动态变化呈先上升后下降的趋势,其含量最大值出现在玉米生长中后期;
- With increasing P or Al supply, Al-induced citrate exudation increased, while Al accumulation in soybean roots decreased in parallel with the decrease of P supply. 随着铝和磷含量的增加大豆根部铝含量增加,表明磷对有机酸分泌和铝积累都有显著的影响。
- Su D C,Zou F C.Response of winter wheat genotypes of different P efficiency to spatial distribution of soil P[J].Chinese Journal of Soil Science,1999,30(6):271-273. [9]苏德纯;邹凤春.;不同磷效率基因型冬小麦对土壤磷空间分布不均的反应[J]
- Abstract : The experiment used a perlite and drip-irrigation system to compared the effects of arbuscular mycorrhizal fungi on maize under different N and P supply levels. 摘要 : 以珍珠岩为培养基质的半液培实验比较研究了不同氮磷水平营养液对接种丛枝菌根真菌玉米的影响。
- The surplus of P2O5 in regionalized balanced fertilization was obviously higher than that in conventional fertilization.This will benefit improving soil P status. 磷素平衡盈余明显高于习惯施肥,有利于改善土壤磷素状况;
- Result showed that HPE maize performed a higher N and K absorption efficiency in low P regiment, its N, K absorption and dry matter accumulation were less affected by low P supply. 结果表明,磷高效利用型玉米氮钾素吸收和干物质积累受低磷处理的影响较小,表现出对氮、钾的高效吸收。
- Results also indicated that spay ing PG germ soil P activator during blooming stage could increase fruit sites an d boll numbers per plant which naturally increased the lint yield. 在棉花生育期喷施,能增加棉花单株果节数、结铃数等,从而促进棉花产量的增加。
- These results indicate that the increase of P supply enhances the Fe fixtion in the apoplast of root during Fe acquisition, and consequently inhibites Fe transfer from root to shoot. 进一步分析发现,低磷处理的根系质外体铁含量显著低于中磷和高磷处理。
- Through the synthesis analysis of the field,spike characters and leaves nutrient content of N,P and K in maize,the treatment of N2K2 was the best and its maize yield was at 11 183.3 kg/hm2 while soil P content was at 35.3 mg/kg. 综合玉米产量、穗部性状、叶片以及土壤氮磷钾养分含量分析;在土壤含磷量为35.;3 mg/kg时;以N2K2配施效果最好;玉米产量高达11 183
- The Fp is a ratio of the increase in extractable soil P to amount of P added, which represents the fixation tendency of soils. 磷肥有效性指标为描述磷肥施用后其仍能维持有效性之比率,其为反映土壤固定磷之能力。
- Positive effects were observed on seedling height,main root length and dry matter weight on different degree for those cottonseeds had been dealed with PG germ soil p activator beforehand sowing. PG微生物土壤磷活化剂拌种处理棉花种子,对棉苗的株高、主根长度和干物重有不同程度的促进作用;
- Results indicate that all PRs could increase P content significantly in straw in the unreclaimed field, total NPK removal by grain and straw and soil P content were also increased significantly. 试验结果表明,在未垦地上,施用磷矿粉处理水稻稻草P含量比对照显著提高,植株吸收N、P、K量、土壤含P量显著增加。