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- Changes of soil chemical properties after transferring acid sulfate paddy soil to upland soil. 酸性硫酸盐土水改旱后土壤化学性状的变异初报。
- Applying degradable geotextiles on surface of arable upland soil could effectively prevent soil from raindrop splash erosion, decrease soil erosion. 可降解编织物覆盖在坡耕地表面，可防止雨滴溅蚀发生，减轻土壤侵蚀；
- Most of these areas are occupied by acid tropical upland soils. 这些地区大多数为酸性热带旱地土壤。
- Effect of a new pesticide, acetamiprid, on biological activity in upland soil was studied through analysis of soil enzyme activities and soil respiration. 摘要通过对土壤呼吸强度和土壤酶活性的测定，研究了新型杀虫剂啶虫脒对旱地土壤生物活性的影响。
- In cultivated land systems, the upland soil physical fertility increased with the cultivation, but the upland crops-rice rotation has a disadvantageous effect. 耕地土壤的物理学肥力随着旱耕熟化过程而增加，但是水旱轮作过程对其有不利的影响。
- Shi Y,Shen Q R,Mao Z S,Li W.Biological response of rice crop cultivated on upland soil condition and the effect of mulching on it[J].Plant Nutrient and Fertilizer Science,2001,7(3):271-277. [2]石英;沈其荣;茆泽圣;李伟.;旱作条件下水稻的生物效应及表层覆盖的影响[J]
- Studies on the Phosphorous Adsorption Curves by the Several Upland Soils in Anhui Province. 安徽省几种旱地土壤磷吸附曲线的研究
- There is no significant difference in Q/I characteristics among upland soils developed from different parent rocks. 而由不同母质发育的旱地赤红壤，Q/I特性差别不大。
- Most highly weathered and leached upland soils in S.E Asia are so deficient in primary nutrients that economic yields of healthy crops cannot be produced, unless nutrients are added to the soil. 东南亚大多数高度风化和淋溶的旱地土壤主要养分贫乏，以致除非向土壤施加养分，否则不可能获得健康作物的经济产量。
- ecological system of upland soil 农田土壤生态系统
- The inherent fertility and productivity of most of the upland soils in S.E.Asia is very low and this explains the poverty of people who depend on such land. 东南亚大多数旱地的内在肥力和生产力很低，这也是依赖这种土地为生的人们贫穷的原因。
- By the method of field plot experiment and laboratory determination,dynamic change and release of fixed ammonium in upland soils during crops growth period were studied. 通过田间小区试验和室内分析,研究了湖南省的代表性旱耕地土壤固定态铵在作物不同生育期的动态变化规律及其释放情况。
- Field experiments were carried out on Loess Plateau to investigate the effects of cropping on the physical and chemical properties, phosphatase activity, and N2O emission of upland soils. 摘要通过大田试验研究了黄土地区种植作物对旱作农田土壤理化性状、磷酸酶活性以及土壤N2O排放的影响。
- Some plants push their roots deep into the soil. 一些植物的根深深长入土中。
- After-effect of Phospho-gypsum in Acidulous Yellow Upland Soil 黄泥土施用磷石膏的后效试验
- Such crops won't grow in limy soil. 这类作物不能在石灰质的土壤中生长。
- What shall we grow in this alkaline soil? 我们应该在碱性土壤里种什么？
- Effect of Straw Addition on Denitrification in Upland Soil 秸秆还田对旱地土壤反硝化的影响
- There are a lot of worms in the soil. 泥土中有许多蠕虫。
- He has arrived in the barren upland of central Spain. 他已经到了西班牙中部的贫瘠高地。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
