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土壤速效钾的
相关语句
  soil available potassium
     Influence of the spatial variation of soil pH on soil available potassium in banana plantation
     香蕉地土壤pH的空间变异及其对土壤速效钾的影响
短句来源
     Temporal-Spatial Variability of Soil Available Potassium in Processing of Restorage Ecosystem in Lianshui Basin
     潋水河流域生态修复过程中土壤速效钾的时空变异
短句来源
     It can also increase soil available potassium.
     同时提高了土壤速效钾的含量。
短句来源
     Continued distribution map of soil available potassium and pH were obtained through researching on the spatial variability of soil available potassium,and it could provide reference to the management and scientific fertilization of soil potassium nutrient.
     通过研究土壤速效钾的空间变异性,获取香蕉地土壤速效钾、pH的连续分布图,为土壤钾养分分区管理及科学施肥提供依据。
短句来源
     In order to find the cause of non-typical soil potassium Q/I curve,we studied the change state of soil potassium Q/I curve in Anhui province by adding different quantity of potassium. The results indicate:(1) the formation of Q/I curve of the non-typical soil potassium is connect with the quantity of soil available potassium;
     非典型的土壤钾的Q/I曲线给土壤钾素的供应状况的判断带来困难,为查明其形成原因,选择了省内几种具有代表性的土壤,研究了添加不同量钾的条件下土壤Q/I曲线的变化,结果表明:(1)非典型的土壤钾的Q/I曲线的形成与土壤速效钾的数量有关;
短句来源
  “土壤速效钾的”译为未确定词的双语例句
     The contents of soil available K of treatments was T1>Ck>T3>T2 after transplanting 35 days, then decliningg of Ck and T1 than stabilizing of T2 and T3. It was T2 >T3>T1>Ck which after transplanted 50 days.
     烤烟移栽后35d土壤速效钾的含量为T1>ck>T3>T2,35d后25%生物有机肥的处理和对照下降,而50%、75%生物有机肥的处理保持平稳。
短句来源
     The Effect of Ca-K Clinoptilotite on Available Potassium in Salinized Soil
     Ca-K型斜发沸石对盐化土壤速效钾的影响
短句来源
     the average content of the soil fast-acting potassium is the natural pasture > farmland > artificial lawn >bush forest land;
     土壤速效钾的平均含量为天然草地>农田>人工草地>灌木林地。
短句来源
     The order of the effect of releasing available K was sewage sludge +bentonite>HA+ zeolite> HA+ bentonite> sewage sludge+zeolite.
     从对土壤速效钾的缓释效果来看:污泥+膨润土>腐植酸+沸石>腐植酸+膨润土>污泥+沸石。
短句来源
     6. The change of sioil available K was analized, which result indicates that the change of the geographical equilibrium point of K increases from the seeding of wheat and corn,and decrease from jointing.
     6.分析了土壤速效钾的周年变化情况,并预测了地理平衡点的周年变化规律:即小麦播种到起身期土壤速效钾含量逐渐升高,然后下降一直到小麦收获。 从玉米播种到大喇叭口期土壤速效钾含量又上升,然后下降直到玉米收获。
短句来源
更多       
  相似匹配句对
     It can also increase soil available potassium.
     同时提高了土壤速效钾的含量。
短句来源
     DISTRIBUTION OF SOIL ORGANIC MATTER, AVAILABLE PHOSPHORUS AND AVAILABLE POTASSIUM IN SOILS OF YANGZHOU
     扬州市土壤有机质和速效钾的分布研究
短句来源
     Effects of Fast-available Potassium in Soil After Irrigation with Spate
     引洪灌溉对土壤速效钾的影响
短句来源
     The Effect of Ca-K Clinoptilotite on Available Potassium in Salinized Soil
     Ca-K型斜发沸石对盐化土壤速效钾的影响
短句来源
     Distribution of Organic Matter and Available N-P-K in the Tea Garden Soil of Xinyang
     信阳市茶园土壤有机质和速效氮磷钾的分布
短句来源
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  soil available potassium
total K removed, K removal by pearl millet in 1980 and soil available potassium were positive and statistically significant.
      


In Mei Xian County of Guandong Province, one type of Chi-Ku disease of the rice plant was observed by local farmers for many years, but its causes had not been precisely identified. The disease was considered to be caused by the acidity of paddy soil and deficiency of nitrogen.Hence, when there was an occurrence of disease in the rice plant,the farmers applied much nitrogen fertilizer and lime to the soil. Subsequently, the severity of disease was observed, and the rice yield decreased or sometimes had nothing...

In Mei Xian County of Guandong Province, one type of Chi-Ku disease of the rice plant was observed by local farmers for many years, but its causes had not been precisely identified. The disease was considered to be caused by the acidity of paddy soil and deficiency of nitrogen.Hence, when there was an occurrence of disease in the rice plant,the farmers applied much nitrogen fertilizer and lime to the soil. Subsequently, the severity of disease was observed, and the rice yield decreased or sometimes had nothing but straw harvested. Soil and plant samples were collected from the diseased paddy field for chemical analysis and a pot experiment was conducted to clarify the inducing facters of disease. The results of the present study are indicated as follows: 1 . The soil and the rice plant were severely deficient in potassium.2. The K2O/N ratio of the leaf blade in the affected plant fell below 0.42 and the ratio of soluble-N to protein-N was above 8.0%,yet in the healthy rice plant,the K2O/N ratio was above 0.50 and the ratio of soluble-N to protein-n fell below 7.1%. The K2O/N ratio and protein-N content of the leaf blade can be increased but soluble-N content can be decreased by application of the potassium. Therefore, the disease in the rice plant can be prevented by application of potassium, and yields of rice may increase.3 . The K2O/N ratio in the rice plant was greatly affecte by the ratio of available potassium to nitrogen in the soil, and the rice yields were closely related to the K2O/N ratio in the rice plant at the active tillering stage.4.On the basis of our observation, the symptoms of this disease have some differences from the several types of Akagare and Chi-Ku disease which had been reported by many workers in Japan and China respectively.The main difference was that the midrids and side-vein near the tip of the leaf blade of the affected plant at first turned dark brown, then tiny brown spots spread to the mesophyll between the veins. Finally, the mesophyll, as mentioned above turned light yellow or greyish white, but the veins still remained dark brown, as a result, it can be seen that the diseased leaf blade appeared with streaks of brown altematng with yellow(or white). In order to distinguish this type of Chi-Ku disease from the several types of Akagare and Chi-Ku disease, it is called a Streaked Type Chi-Ku disease.5.Under the microscope observation, it was revealed that the brown materials were only produced in the mesophyill of the diseased leaf, and the bundle, vascular bundle sheath and bulliform cells had not changed in colours.

条纹型水稻赤枯病在广东梅县已发生多年,一直被误认为是土壤反酸和缺少氮肥所致,因而采取施用石灰和大量化学氮肥,结果反使病情加重,产量下降,有时甚至失收。为查明该病发生之原因及对其发病的特征进一步观察,作者对发病土壤和稻株进行了化学分析,并取土进行了盆栽试验。研究结果表明:(1)发病土壤和植株严重缺钾。(2)凡发病的植株,其叶片(顶叶往下第3片叶)的K_2O/N值在0.42以下,可溶性氮与蛋白氮之比率在0.8%以上,而正常植株的叶片K_2O/N值则在0.5以上,可溶性氮与蛋白氮之比率在7.1%以下。施钾能提高叶片的K_2O/N值及蛋白氮含量,降低可溶性氮含量,对于防治该病及水稻的增产均具有显著的效果。(3)稻株的K_2O/N值受土壤速效钾、氮比值的支配,两者呈显著的二次曲线相关。而水稻产量则与分蘖盛期植株的K_2O/N值关系密切,植株K_2O/N值过低或过高,都不能获得最高产量。(4)本研究发现的赤枯病,与目前文献报道的几种类型水稻赤枯病在一些症状上有较大的差异。而主要区别在于这种病害的发生,首先是叶尖的中脉与侧脉先后变成黑褐色,然后在变色的叶脉两侧出现褐棕色的针尖状小斑点。最后叶脉间的叶肉组织变成淡黄(或灰白)...

条纹型水稻赤枯病在广东梅县已发生多年,一直被误认为是土壤反酸和缺少氮肥所致,因而采取施用石灰和大量化学氮肥,结果反使病情加重,产量下降,有时甚至失收。为查明该病发生之原因及对其发病的特征进一步观察,作者对发病土壤和稻株进行了化学分析,并取土进行了盆栽试验。研究结果表明:(1)发病土壤和植株严重缺钾。(2)凡发病的植株,其叶片(顶叶往下第3片叶)的K_2O/N值在0.42以下,可溶性氮与蛋白氮之比率在0.8%以上,而正常植株的叶片K_2O/N值则在0.5以上,可溶性氮与蛋白氮之比率在7.1%以下。施钾能提高叶片的K_2O/N值及蛋白氮含量,降低可溶性氮含量,对于防治该病及水稻的增产均具有显著的效果。(3)稻株的K_2O/N值受土壤速效钾、氮比值的支配,两者呈显著的二次曲线相关。而水稻产量则与分蘖盛期植株的K_2O/N值关系密切,植株K_2O/N值过低或过高,都不能获得最高产量。(4)本研究发现的赤枯病,与目前文献报道的几种类型水稻赤枯病在一些症状上有较大的差异。而主要区别在于这种病害的发生,首先是叶尖的中脉与侧脉先后变成黑褐色,然后在变色的叶脉两侧出现褐棕色的针尖状小斑点。最后叶脉间的叶肉组织变成淡黄(或灰白)色,而叶脉保持褐色,结果使发病叶片呈褐黄(或白)相间的条纹状。为区别于其它类型赤枯病,拟称

The pot and field experiments in different kinds of soil have been made for two years in our provience.The results show that reasonable application of chemical potassium fertilizers have given good effects on the yield and quality of potato tuber and have increased the disease resislance of the plant.And these effects are related to the content of rapidly available potassium in the soils and the quantity of plant asia in the manure applied.Generally,when the content of rapidly available potassium in the soils...

The pot and field experiments in different kinds of soil have been made for two years in our provience.The results show that reasonable application of chemical potassium fertilizers have given good effects on the yield and quality of potato tuber and have increased the disease resislance of the plant.And these effects are related to the content of rapidly available potassium in the soils and the quantity of plant asia in the manure applied.Generally,when the content of rapidly available potassium in the soils is more than 30mg k/100g soil or there is a huge amount of plant ash in the manure applied,the efficiency of chemical potassium fertilizers is not so obvious.

通过两年在几种不同土壤上所进行的田间试验及盆栽试验,表明合理施用化学钾肥对马铃薯块茎的产量、品质以及对马铃薯的抗病性均产生有利影响。但其肥效与土壤速效钾含量及农肥中草木灰的数量有关。一般当土壤速效钾(K)大于30mg/100g±或所施农肥中含有大量草木灰时肥效就不明显。

It was found that the contents of the quick-acting and the slow-acting potash of the soil were generally higher by determining the contents of the quick-acting and the slow-acting potash of 277 samples of various soil types in the east and middle parts of Jilin province. The content of the quick-acting potash of the soil was lower in parts of the paddy fields of the east part of the province (less than 70 ppm k) , and the slow-acting potash content was also lower.Therefore the paddy field in the east part was...

It was found that the contents of the quick-acting and the slow-acting potash of the soil were generally higher by determining the contents of the quick-acting and the slow-acting potash of 277 samples of various soil types in the east and middle parts of Jilin province. The content of the quick-acting potash of the soil was lower in parts of the paddy fields of the east part of the province (less than 70 ppm k) , and the slow-acting potash content was also lower.Therefore the paddy field in the east part was the major field for distributing and applying potassium fertilizer.The interrelation between the quick-acting potash and the slow-acting potash was very obvious in the soil of the province (r = 0.693**) .Consequently, when testing the soil And applying the fertilizer, only determining the quick-acting potash was needed.The differences of the potash contents in various soil types were less, and each type included the soils with higher or lower potash Contents.The potash-offering level of the soil could not be distinguished according to the soil types. It was reasonable to judge the potash-offering level of the soil according to the content of the quick-acting potash of the soil determined.

对吉林省东、中部277个各种不同类型的土壤进行速效钾和缓效钾含量的测定,确定了我省土壤速效钾和缓效钾含量一般都较高。速效钾含量较低的主要为东部的部分水田土壤(<70ppmk),其缓效钾含量也较低,为我省钾肥分配和施用的重点。我省土壤中速效钾与缓效钾之间的相关极显著(r=0.693),因此在测土施肥时一般只测定速效钾亦可。各种类型土壤的钾含量差异较小,都有含钾较高和较低的土壤,因此不能单按照土壤类型来区分土壤的供钾水平,以根据土壤速效钾测得值来判断较为合理。

 
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