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- Low soil P availability 低磷胁迫
- 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。
- Yield and N uptake response by non-nodulated soybean to increased P availability is marginal. 不结瘤大豆对有效磷增加在产量和氮吸收上的反应也不大。
- Under low soil moisture condition,evaporation from the community decreased with increase in soil clay content. (2)在低土壤含水量条件下,群落蒸发随土壤粘粒含量增加呈线性降低;
- Results show that P availability in latosol derived from shallow-sea deposit is higher than that in latosol derived from basalt. 砖红壤磷有效性低的主要原因是土壤活性铝、铁、锰含量高,另外与土壤中不同形态无机磷占无机磷比例有关。
- Low soil fertility has slowed agricultural production in parts of the continent for years. 土壤的低肥力使这块大陆的许多地方的农产品在逐年递减。
- 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
- However, there are also some problems, such as the low soil fertility and secondary soil salinization. 但也面临着土壤肥力低、次生盐渍化威胁大等问题。
- Temperature, especially where low soil temperature may reduce available soil K and its absorption by plants. 温度,尤其是当土温低,可能减少土壤有效钾和植物对其吸收的地方。
- 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;
- Top soil masses of dam slope soak and produce wetting more easily than low soil of slope in spite of rainfall intensity. 不管降雨强度如何,坝顶和坝坡中上部比坡体的中下部更容易受降雨浸湿。
- It was known that P availability might also regulate the growth and development of lateral roots, but most reports focused on the model plant, Arabidopsis, while research on soybean is scarce. 磷有效性对植物侧根发生发育也有调控作用,但已有的研究主要集中在模式植物拟南芥上,对于磷是否调控大豆主根和侧根的发生发育过程鲜有报道。
- 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。
- With the increasing of nitrogen rate, the curves of RVA profile decreased under the high, middle and low soil fertility levels. 两供试品种在高、中、低三种地力水平上,RVA谱曲线均随施氮量的增加而降低。
- 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]
- 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;
- It would be toxicity when the concentration of soil boron was higher, whereas North454 has a relative broader suitable extent. North384 is a genotype which is not sensitive to low soil boron and had a broad suitable extent. 北454需硼的适量范围较宽:北384属于既对低硼不敏感、适量需硼范围又很宽的基因型。
- 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。
- 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
- Theoretically, one would expect the distribution of a fumigant to be more rapid at lower soil water contents. 在理论上,预计熏蒸剂的分配在土壤水分含量较低时会更迅速。