Under field condition, effects of potassium application rate on growth, yield and quality of Glehnia Littoralis roots were studied.
在大田栽培条件下，研究了施钾量对北沙参生长、产量和品质的影响。
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.
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 yield response of two common corn cultivars (Qiandan NO. 4 and Jingza NO. 6) to inoculation with Azospirillum brasilense strain 8018 was studied under field condition in Puding county.
用巴西固氮螺菌8018菌株菌肥拌黔单4号和京杂6号玉米种子于普定县三块田村进行了田间应用实验。
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