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疏松土壤

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There isn"t obvious selectivity in blank cutworm imperilment, the onseting quantity and imperilling degree is similar on different crops. It"s more serious in the field of invasion of weeds and corn intercrop potato than single cropping of corn, and the field of forecrop green manure is more serious than single cropping. Imperilment degree of black cutworm is very serious in both high altitude region as Dewu (1780 meters) and low altitude region as Lemin (1450 meters). The imperilment degree in two regions have no obvious differences. 4. The imperilment of second generation armyworm is very serious in both high altitude region of Dewu and low altitude of Lemen town.

3小地老虎的为害对品种没有明显的选择性,各品种小地老虎发生量和受害程度相似;作物对小地老虎发生为害程度影响较大,杂草丛生的地块和玉米与马铃薯间作的地块受害程度明显高于玉米净作地块,而前作为绿肥的地块受害程度也比净作高;土壤条件对小地老虎发生为害程度有影响,土质疏松、肥沃、团粒结构良好的地块受害程度明显比地势低洼、土质粘重、瘠薄的地块重;小地老虎在高海拔的德坞(1780米)和低海拔的乐民(1450米)两地发生为害均较重,为害程度没有明显差异。

The soil that asks loose and fecund, drainage is good.

要求疏松肥沃。排水良好的土壤。

Lax to growing hill up soil to ask, but grow in loose and fecund loam optimal.

对栽培土壤要求不严,但在疏松肥沃的壤土中生长最佳。

The requirement lives in fecund, loose sandiness soil.

要求生活在肥沃、疏松的沙质土壤里。

Results showed that high quality black tea was mainly produced in red soil, red yellow soil and intermountain alluvial terraces formed by fluvial outwash, with loose soil texture and high soil organic matter content.

分析表明,优质红茶产地主要是红壤、红黄壤和河流冲积形成的山间冲积台地,土壤质地疏松,有机质含量较高。

Gentleman orchid drenchs rot the root dies after water, the likelihood has the reason of two respects, it is basin earth too wet, because gentleman Lan Xihuan is loose,understand the edaphic requirement that appear, once basin earth is medium moisture is too big, its bulky flesh pledges the root arrived to will come in October between November, already entered stop to grow or grow very slow condition, do not need how many moisture, need to hold basin ground only wet can, drench water causes those who rot the root is unavoidable too much; 2 it is you drench when water, flow into the phyllome center of plant the dirt that will have smudgy part along with all the others, and at this moment water of blade rising bad news is less, sewage accumulating is inside Xie Cong, also can choose sodden heart sodden root.

君子兰淋水后烂根死亡,可能有两个方面的原因,一是盆土过湿,因君子兰喜欢疏松通透的土壤条件,一旦盆土中水分过大,其粗大的肉质根到了10月至11月间,已进入停止生长或生长很慢的状态,不需要多少水分,只需要保持盆土湿润即可,淋水过多造成烂根是在所难免的;二是你淋水时,将会有脏污成分的尘土等一并流入植株的叶丛中心,而这时叶片蒸腾耗水较少,脏水积在叶丛内,也会选成烂心烂根。

This is not surprising, given the closer proximity of Pengyang to the Asian inland dust sources; The average content of calcium carbonateis of Pengyang section is not only higher than that of central loess plateau, but also higher the west of Chinese Loess Plateau, which reflected Pengyang loess had been deposited by near Liupanshan\'s substances that contained more calcium carbonateis; The content of diffluent element of 10m depth in the section increased fast, which indicated that the modern eluviation and the leaching depth of loess may be stronger than our guess; The soil growth index can reflect the intensity of soil forming and the climatic changes; The "abrupt chang" of glacial and interglacial period was caused by strong soil-forming processes that enlarged the discrepancy of granularity between loess and paleosol. However, the magnetic susceptibility nearly cannot reflect the existence of S_8 and the magnetic susceptibility of S_7 is highest in the whole section, which is inconsistent with other studies that S_5 has the highest magnetic susceptibility.Thin-section examination shows that the micro-texture of the soil layers is divided into both cementing texture in S_7, S_5 and S_1, and granular texture in all others.

与其它剖面相比,彭阳剖面粒度总体上要比东部的洛川、西安,甚至西部的兰州、新疆东湾要粗;CaCO_3平均含量不仅高于黄土高原中部,也高于高原西部,反映出本剖面富含碳酸盐的六盘山近源沉积起到了很重要的作用;易溶元素含量在剖面10m处快速升高,淀积特征明显,反映出黄土受现代淋溶成土作用影响较大,黄土直立、疏松、多孔特性和高温与多雨组合的气候特点,使得元素淋溶、淀积的强度和深度超出了传统的认识和判断;烧失量与其它指标相比,不仅能区分冰期、间冰期;而且能够区分出次一级的冰阶、间冰阶,有较高的分辨率;土壤发育指数、红度能够反映土壤强度差异,是反映气候波动的较好指标;然而,磁化率不能反映古土壤S_8的存在,且S_7的磁化率在全剖面中最高,这与大多剖面S_5磁化率最高的特点不一致。4。

Results indicated that furrowing can make the soil of the ridge looser and soil porosity larger, so favoring the aeration and water permeability of soil, enlarging the storage capacity of soil water.

结果表明,起垄可使垄背土壤变得疏松,孔隙度增大,有利于土壤通气透水,增加土壤水库容。

At the same time, using their ability to absorb and give off water and nutrition, we can use them into the reform of soil, the plantation of vegetables and fruits, the forestation of gardens and non-soil cultivation, so that they have effects on preserving water, airing, keeping fertilizer, making soil loose for a long time, preventing soil from consolidating, keeping water moving, and something like that.

同时利用陶粒对水及养料的吸放性能,用于土壤改良、蔬果栽培、园林绿化和无土栽培中,可以起到保水、透气、保肥,长久保持土壤疏松、防止泥土板结及疏水性良好等效果。

Moist soil absorbs more heat than loose, dry soil covered with mulch or vegetation.

潮湿的土壤比疏松,干旱,覆盖有保护物或草木的土壤更容易吸收热量。

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从有历史以来,英国,在此地早期居住的是凯尔特人,已经被征服了三次。

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