sowing date 播种日期
suitable sowing date 最佳播期 ; 适宜播期
best sowing date 最佳播期
Limit sowing date 极限播期
latest sowing date 晚播极限
proper sowing date 适宜播种期
autumn sowing date 秋季播种期
optimal sowing date 最佳播种期
various sowing date 分期播种
optimum sowing date 最佳播种期
The sowing date had greater influence on the duration from sowing to tillering.
播期对播种至分蘖的天数影响较大。
With density and nitrogen application being increased or sowing date being postponed, the fat content was slowly falling after the peak value, but increased at mature period.
随密度增加、施氮量增大或播期延迟，胚中脂肪含量均在峰值之后下降缓慢，成熟时脂肪含量均有增加。
Disease incidence related closely with not only varieties and meterological condition, but cultivation practices such as irrigation, sowing date, sowing density, sowing method and so on.
发病程度除与品种、气象条件有关外，还与灌水，播种时期，密度，播种方法等栽培措施关系密切。
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