论文部分内容阅读
光合生产傘就是在一定时間內(一昼夜或一周)平均单位叶面积与植株干物质净增加量之比,而对植株在这段期間的消耗不予計算,因此又称为凈光合生产率馐橇私庖蹲庸ぷ餍实囊恢趾啽惴椒ā?本試驗以广东芝麻品种“琼山紅”(該品种在广州夏季栽种整个生育期为70—80天)为材料,在1960年5—8月間进行。大田种植面积0.1亩,先后追施硫酸铵1.5斤,尿一担,过磷酸鈣2斤,草木灰20斤。測净光合生产率6次,每次取有代表性植株20株,叶面积用图紙印图剪紙称重法求得。
Photosynthetic production umbrella is the ratio of the average unit leaf area to the net increase of plant dry matter within a certain period of time (a day and night or a week), while the consumption of plants during this period is not calculated, so it is also called net photosynthetic productivity 馐In this experiment, Guangdong sesame variety “Qiongshan red” (the variety planted in Guangzhou in the summer of 70-80 days of the entire growth period) for the material, in 1960 May-August. Field planting area of 0.1 acres, has pursued 1.5 kg of ammonium sulfate, urine, a burden, superphosphate 2 kg, ash 20 kg. Net photosynthetic productivity measured six times, each time to take a representative of 20 plants, the leaf area printed on the paper cutout paperweight obtained.