查询词典 field capacity

In this paper, two optimal experiment points and optimized calculation method for experiment time are provided on the base of the principle of confidence field capacity minimality.

用置信域容积最小作为实验设计的原则，给出了两个最佳实验点的位置，为实验时间的长短给出了具体的优算方法。

The results show that when 40%,60%and 80%of the water field capacity in root systems deep range (about 40 cm deep soil) is taken as the amount of water supply the period of growth, the economic yield and benefit isn′t increased at the same rate. In order to increase the product at a great rate, the amount of water supply must be over 60%.

试验结果表明，在辣椒根系生长范围内，分别以田间最大持水量的40％、60％和80％做为整个生长期的补充水量，产量和产值并未随补充水量的增加而同幅度提高，要使产量大幅度提高，补充水量必须在根系生长范围内田间最大持水量的60％以上。

Field capacity is a property of a unit volume of soil.

野外容水率是单位土体的一种特性。

Water stress experiments on Caryopteris mongholica Bunge of six provenances were conducted under three intensities selected by the provenance environments: mild, moderate and severe, of which the soil moisture were 80～85%, 45～50% and 15～20% of the field capacity respectively.

中文摘要：以6个种源的1年生蒙古莸为试验材料，采用称重控水的方法，根据种源地的情况设置充足水分、中度胁迫、重度胁迫3个水分梯度，分别维持在田间持水量的80～85%、45～50%、15～20%开展水分胁迫试验。

Under 50%, 60% and 70% field capacity, ammonium nitrogen content in soil with water soluble felted and coated fertilizer was in positive correlation to water content, and nitrate nitrogen content after 24 d was more than that with urea treatment.

在田间持水量50%、60%、70%条件下，微水溶性胶结包膜缓释肥料土壤铵态氮含量变化与水分呈正相关关系，24 d后硝态氮含量呈高于尿素处理趋势。

A P enrichment treatment was carried out in the greenhouse simultaneously. 300ppm P as monocalcium phosphate were applied in each of these eight soils and kept in field capacity for 5 months.

採取本省中、南部代表性石灰质土壤八种，分别加入0、20及300ppm p后，置於塑胶罐中，保持田间容水量状態，以30℃定温孵育，定期取出测定其有效磷及无机磷型態。

When soil water content exceeds field capacity, the reducement of air in soil will cause the root breath weaken, or plant death.

此时土壤的含水量超过了田间持水量，在严重的淹水情况下，土壤中空气减少，会造成根系因缺氧而呼吸减弱，长时间如此还会引起植物死亡。

Soil physical properties(Water saturated content、Field capacity、Capillary porosity、Non-capillary porosity、The total porosity) The number of micro-organisms(bacteria,fungi and actinomycetes)、activity of the enzyme and nutrient content (Organic matter、TN、AN、P、AP) In the two types of landscape are reflected in the type of surface(0-20cm) higher than the sub-surface(20-40cm).

2土壤物理性质(饱和含水量、田间持水量、毛管孔隙度、非毛管孔隙度、总孔隙度)、微生物数量、酶活性(过氧化氢酶、脲酶和蔗糖酶)及养分含量(有机质、全氮、有效氮、全磷、速效磷)在不同景观及其界面中均表现为表层(0-20cm)高于亚表层(20-40cm)。

The soil moisture favorable to increasing squares and bolls in these stages was 54, 68, 64 and 63 percent of field capacity respectively.

这些阶段有利于增蕾保铃的土壤湿度分别为60%、66%、64%和63%。

The soil moisture favorable to increasing squares and bolls and improving fiber qualities was 60~70 percent of field capacity.

有利于增蕾保铃和提高纤维品质的土壤湿度，约相当于田间持水量的55%～75%。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。