采用简单的试验和研究方法在田间条件下研究了叶绿素仪应用于夏玉米氮营养诊断的可行性。
The feasibility of readings of SPAD-502 on the nitrogen nutritional diagnosis of corn was studied through a simple field experiment and research method under field condition.
叶绿素仪（SPAD-502）的出现使通过无损伤的田间速测对作物进行氮营养诊断成为可能。
The SPAD-502 chlorophyll meter appears promising for rapid, on-farm analysis of crop nitrogen status.
应用反射仪测定棉株叶组织硝态氮含量，研究了硝态氮作为棉花氮营养诊断和追肥推荐指标的可行性。
Field experiments were conducted to study cotton nitrogen diagnosis and topdressing recommendation by measuring cotton tissue NO 3 - concentration with Reflectoquant .
在南疆滴灌条件下进行氮肥大田试验，对应用土壤无机氮测试进行棉花氮素营养诊断及氮肥推荐进行了研究。
Based on field fertilizer experiment of cotton under drip irrigation in the area, cotton nitrogen diagnosis and nitrogen fertilizer recommendation with soil inorganic nitrogen quick test was st.
综述了落叶果树氮对产量与品质的影响、氮循环、氮诊断与精准施氮等氮素营养研究的几个方面。
The functioning mechanism, absorption, transference, distribution, effective period and perennial effect , as well as application of paclobutrazol in deciduous fruit trees were summarized.
综述了落叶果树氮对产量与品质的影响、氮循环、氮诊断与精准施氮等氮素营养研究的几个方面。
The functioning mechanism, absorption, transference, distribution, effective period and perennial effect , as well as application of paclobutrazol in deciduous fruit trees were summarized.
应用推荐