The nitrogen release character of ZP coated fertilizer and its effect on summer maize were studied by field plot test.
通过田间试验研究了包膜肥料ZP氮素释放特点和在夏玉米上施用效果。
Irrigation experimental study of 6 years had been carried out for 30 varieties of interplantation crop combination patterns in 15 sites and stations in Shanxi province by using field plot test.
在山西省15个试验站点，采用田间小区试验方法，对30种间作套种组合种植模式进行了历时6年的灌溉试验研究。
Irrigation experimental study of 6 years had been carried out for 30 varieties of interplantation crop combination patterns in 15 sites and stations in Shanxi province by using field plot test.
在山西省15个试验站点，采用田间小区试验方法，对30种间作套种组合种植模式进行了历时6年的灌溉试验研究。
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