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- Stem under soil surface 地下茎
- This creates mulch on the soil surface. 这可以在土地表面形成覆盖物。
- Taproot long-cylindric, deep-rooted with a slender and elongated stem to soil surface. 直根长圆筒状的,根深具一纤细和拉长的茎达土壤表面。
- The distance of the water table below the soil surface must be adjusted. 必须调整土壤表面以下水位的距离。
- Even though potassium is stratified under reduced tillage( as it is in a permanent sod), it is apparent that roots proliferate sufficiently near the soil surface to assume adequate potassium uptake by crops. 虽然在少耕制下,土壤钾有明显的分层分布(永久性草地一样)但在土表附近,作物根系发达保证作物对钾有足够的吸收。
- Even though potassium is stratified under reduced tillage (as it is in a permanent sod) , it is apparent that roots proliferate sufficiently near the soil surface to assume adequate potassium uptake by crops. 虽然在少耕制下,土壤钾有明显的分层分布(象永久性草地一样),但在土表附近,作物根系发达保证作物对钾有足够的吸收。
- The best inoculation effect was native fungi in the rhizosphere of Caragana korshinskii under soil water stress. 水分胁迫条件下,以接种柠条锦鸡儿根际土著菌的效果最佳。
- The root growth, root vigor, root tissue water status and root/cap of White mustard were investigated under soil water stress using pot test. 利用旱棚盆栽研究土壤水分胁迫对白芥根系发育、根系活力、根组织水分状态和根冠比的影响。
- In conclusion, Popularis kept the highest productivity under soil moisture of 30%FFC among the four poplar genotypes and Italica was the lowest. 总之,在30%25FFC条件下,群众杨在四种杨树中生产力水平最高,而I-214杨则最低。
- Effects of nitrogen and phosphorus nutrition on gas exchange of maize (Zea Mays) were studied under soil drought conditions. 摘要 在盆栽条件下就氮磷营养对玉米叶片气体交换的影响进行了比较研究。
- In our experiment desirable results were obtained by covering the soil surface with plant ash and fine sands. 经试验,用草木灰和细砂覆盖地面的方法,造成干燥的生态条件,对控制发生效果显著;
- Under soil condition, tomato could take up sufficient N, P, K and Ca but insufficient Mg from composted peanut cake manure. 黄皮滴施花生麸沤腐液,黄皮地下部和地上部的生长都受到了明显的抑制。
- Herbs, perennial, acaulescent or shortly caulescent, ascending, rosette but rarely closely appressed to soil surface. 多年生草本,无茎或短茎,上升,莲座丛但很少紧密地贴伏于土表。
- Mulches prevent crusting of the soil surface, thus improving the absorption and movement of water into the soil. 覆盖物可以防治土壤表层板结,使水份容易被土壤吸收。
- Potted Starkrimson apple trees were used as materials in the experiment. Effects of fruit on water use efficiency (WUE) and relevant parameters were studied under soil drought. 以盆栽新红星苹果树为试材 ,研究了土壤干旱条件下果实对水分利用效率(WUE)及有关参数日变化的影响。
- Fig. 4. Pycnidiospore survival of Didymella bryoniae placed at soil surface, 5, 15, and 30cm below ground at field. 四、在土壤表面、地表下5、15及30公分土壤深度的瓜类蔓枯病菌柄孢子存活情形。
- Potted Starkrimson apple trees were used as materials in the experiment.Effects of fruit on water use efficiency (WUE) and relevant parameters were studied under soil drought. 以盆栽新红星苹果树为试材,研究了土壤干旱条件下果实对水分利用效率(WUE)及有关参数日变化的影响。
- The study of herbicide deposition on soil surface and wheat stubble in different wheat mulch conditions is conducted. 研究了不同兑水量情况下,除草剂在免耕麦茬土壤表面和麦茬上的沉积规律。
- Liu W D,Wang H C,Yang Q H et al.Effect of nitrogen application on the productivity of winter wheat under soil water deficit[J].Chin.J.Soil Sci.,2002,31(6):262-264. [6]刘万代;王化岑;杨青华;等.;施氮对土壤水分亏缺下冬小麦生产力的影响[J]
- Indeed the ecology is destructed continuously and the soil surface nutrition is also washed out. 于自然生态环境中,生态演替和气候转变不断在进行,但速度是相对缓慢的。