长期生物测试得出的是亚致死效果，例如在较长时期内生物体生长或繁殖上的变化。
Chronic bioassay tests indicate sublethal effects, such as changes in growth or reproduction of the organism over a longer period of time.
K326生长期间进行打顶和未打顶处理，研究鲜烟叶片蛋白酶及含氮化合物的变化规律。
Disposing with topping and not topping in K326 growth duration, researching the change law of protease and nitrogen compound in fresh tobacco leaves.
不同养分组合对不同生长期芋头植株养分的影响随施肥处理不同而异，其变化也不一样。
As the process of fertilization changed, influence and diversification are become different by using different nutrient combination.
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