Soil aggregate stability is a key property of soil, and reflects soil fertility.
团聚体稳定性是土壤的基本性质，反映了土壤肥力的高低。
This pape probes to the stage-structure systtm with nonlinear fertility rate, making clear the ample conditions of the systtm's global stability of the equilibriums.
研究具有非线性生育率的阶段结构系统，得到了该系统平衡点全局稳定性的充分条件。
A study has been made on the stability of fertility transformation of HPGMR Nong-Ken 58a and its pollen morphology under Scanning Electronic Microscopy.
对HPGMR农垦58A进行育性转换的稳定性研究，用扫描电镜观察其花粉外部形态。
Fertilizer can be applied to achieve high yield, fertility and stability, effective, and can improve soil physical properties. increase crop resilience.
施用后可达到肥效高、增产大，肥力稳、见效快，能改良土壤理化性状，增强作物的抗逆能力。
Fertilizer can be applied to achieve high yield, fertility and stability, effective, and can improve soil physical properties. increase crop resilience.
施用后可达到肥效高、增产大，肥力稳、见效快，能改良土壤理化性状，增强作物的抗逆能力。
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