topdressing 中文意思是什麼

topdressing 解釋
頂肥
  1. Effects of nitrogen rate and ratio of base fertilizer and topdressing on uptake, translocation of nitrogen and yield in wheat

    施氮量和底追比例對小麥氮素吸收轉運及產量的影響
  2. Topdressing fertilizers for swelling of kernels are manufactured at ambient temperature from organo - mineral fertilizers in the double - roll granulator without any drying, thereby giving full play to the characteristics of high nutrient content and quick fertilizer effect of mineral fertilizers as well as exploiting the advantages of soil amelioration and lasting fertilizer effect of the organic matter

    以無機有機肥料為原料，採用對輥式造粒機無乾燥工藝于常溫下生產花生膨果追施肥，既可充分發揮無機肥養分含量高、肥效快的特點，又可發揮有機質改善土壤性能、肥效長的優點。
  3. The nitrogen utilization efficiency were downtrend with the amount of topdressing increased

    隨著施氮量增加，追施氮肥的利用率明顯下降。
  4. Topdressing nitrogen treatment had no obvious effect to total nitrogen in soil, but it had a stronger effect to alkalined - nitrogen

    追氮處理對土壤全氮沒有明顯的影響，但對土壤大麥堿解氮的影響比較大。
  5. Influence of density and topdressing time of nitrogen fertilizer on carbohydrate metabolism in leaf and grain of large - ear cultivar of high - yielding winter wheat

    密度及追氮時期對大穗型小麥旗葉及子粒碳水化合物代謝的影響
  6. Topdress different amount urea on cotton under film - mulching and drip irrigation during the blooming period, the result showed that content of nitrogen of root, leaf, leaf - stem and reproductive organ of cotton with nitrogen treatment were higher than non - treatment, but the increase had no relation with the amount of nitrogen topdressing

    摘要在棉花花鈴期膜下滴施不同量尿素，結果表明，追氮處理后棉株根、葉片、葉柄和蕾鈴的氮含量比不追氮處理要高，但增高多少與追氮量沒有明顯關系。
  7. Effects of nitrogen fertilizer rate and ratio of base and topdressing on winter wheat yield and fate of fertilizer nitrogen

    施氮量和底追肥比例對冬小麥產量及肥料氮去向的影響
  8. According to the principle of nutrient balance and water requirement in cotton, the sub - model for fertilization and water management was developed by integrating the effects of soil characters, variety traits and yield target. the submodel can make decisions on the suitable total nutrient and water rates and distributions among main growth stages, ratio of organic to inorganic nitrogen, and the ratio of base to topdressing fertilizer

    根據平衡施肥原理和棉花水分需求規律，在綜合考慮土壤理化特性、品種遺傳特徵、產量水平等因子影響的基礎上，建立了具有系統性和普適性的棉花肥料及水分運籌動態知識模型，模型可以完成肥料總量需求，有機肥與無機肥的比例、基肥與追肥的比例、追肥施用時間、水分需求總量及其在各個生育時期的分配等。
  9. Effects of nitrogen topdressing stage on quality characters of different kinds of gluten wheat

    追氮時期對不同筋型小麥品質性狀的影響
  10. Effects of different ratio of basal and topdressing nitrogen on grain quality and yield in winter wheat

    氮素不同底追比例對冬小麥品質和產量的影響
  11. Tear off the rhetorical topdressing from his speech and you find there ' s very little solid content

    去掉他演講中華麗的辭藻，你會發現其中沒什麼實在內容。
  12. The effects of different proportion of basal nitrogen and topdressing nitrogen on wheat quality and yield

    氮肥不同底追比例對強筋小麥籽粒品質和產量的影響
  13. Effects of nitrogen application rate and ratio of base and topdressing on nitrogen absorption, utilization, grain yield, and grain protein content in winter wheat

    施氮量和底追比例對小麥氮素吸收利用及子粒產量和蛋白質含量的影響
  14. Kriged interpolation maps provided good indication of the spatial variability in crop yield and growth status. spatial interpolation and correlation analysis proved that spad lai was more indicative of crop growth status than individual variable, and useful for implementing growth season regulation and topdressing as needed

    克里格插值圖可很好地描述作物長勢和產量的空間變異，空間插值分析與相關分析結果都說明，採用spad * lai二乘因子較之單個變量能更精確反映作物長勢，從而有助於實施產中調控和按需補給。
  15. The total absorption of nitrogen increased with the amount of nitrogen topdressing, but the proportion of absorption nitrogen during the blooming period to total nitrogen were downtrend

    棉花總吸氮量隨著追氮量的增加而增加，但花鈴期吸氮量占總吸氮量的比例呈下降趨勢。
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