Micro plot trial was carried out to study the effect of K application on dry matter accumulation and the content and the absorption of K, ca and Mg of oil rape.
采用池栽土培试验研究了钾对不同生育期油菜干物质积累量和钾、钙、镁含量及吸收量的影响。
Sand culture trial and rain-proof mini-plot rial both proved phosphorous had remarkable effect on improving plant's photosynthesis efficiency.
砂培和防雨微区试验都证明磷对提高作物光合效率有显著作用。
The effects of five kinds microbial fertilizer on tobacco were studied by plot trial.
通过田间小区试验，比较了5种微生物菌肥对烤烟的效应。
The effects of five kinds microbial fertilizer on tobacco were studied by plot trial.
通过田间小区试验，比较了5种微生物菌肥对烤烟的效应。
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