different fertilizer levels

基本解释

Studies were made on different sowing dates and fertilizer levels effecting qualities of two fragrant rice varieties.
研究不同播期和施肥水平对二个香米品种品质的影响。
The effects of different nitrogen fertilizer levels and transplanting mode on canopy structure and yield in Honglianyou 6 in plot experiments were studied.
以杂交中稻红莲优6号为材料，采用小区试验，研究了不同施氮水平和栽插密度及栽插模式对杂交中稻群体结构的影响。
The effects of nitrogen fertilizer at different levels on the growth, the overground yield and content of essential oil with the wild Dracocephalum moldavica L.
为试验材料，研究了不同施氮量对香青兰生长发育、地上部干草产量及挥发油含量的影响。