6. The efficiency of symbiotic nitrogen fixation of Leucaena rhizobia on Leucaena leucocephala cv. El Salvador was investigated through pot culture.
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Through pot culture experiments, the effects of copper mine tailings on growing status and resistance to heavy metals of five forage grass species were investigated.
通过盆栽实验，分析了铜尾矿对五种牧草生长发育和重金属抗性的影响。
The variation of nutrient in soil of sequential cropping peanut and the response of such soil to organic and chemical fertilizers were investigated through pot culture.
采用盆栽试验，探讨了连作花生土壤养分的变化及对施用有机肥料和无机肥料的反应。
The affects of Photosynthetic bacteria on burgeon of tomato through sand culture method on pigment, enzyme system of tomato and soil microbe through pot culture experiment were studied.
采用砂培方法研究了光合细菌对番茄发芽的影响和采用盆栽试验研究了光合细菌对番茄生长过程中光合色素、部分抗氧化酶以及微生物区系的影响。
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