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我县推广固氮蓝藻的实践证明,它是一种大有可为的新肥源,为解决双季晚稻肥源开辟了新途径。 1978年我们在卧龙、朋兴,城关三个公社,38个大队进行了试验推广,建土池210个,茬口田繁种面积523亩,稻田放藻面积12,399亩,平均增产率12％左右。固氮蓝藻的肥效据卧龙农科站试验,放藻田秧苗返青快、有效分蘖多、叶色绿、茎秆壮(如表1)。试验分4个处理,2次重复。小区面积1厘田。品种是“农虎10号”,8月2日插秧。处理情况: (一)蓝藻:1978年8月4日放藻,100斤/亩,压藻2次,压藻量1,720斤/亩。 (二)红萍:同一天放萍100斤/亩,倒萍2次,
The practice of promoting nitrogen-fixing cyanobacteria in our county proved that it is a promising new fertilizer source and opened up a new way to solve the problem of double-crop late rice fertilizer source. In 1978, we piloted and popularized 38 communes in Wolong, Pengxing and Chengguan and commuted them with 210 batches of earth ponds, covering 523 mu of crop fields and 12,399 mu of algae in paddy fields, with an average increase rate of 12%. Nitrogen fixation of blue algae fertilizer effect According to Wolong Agricultural Station test, Algae field seedling green fast, effective tiller, leaf color green, stalks and strong (Table 1). The test was divided into 4 treatments and 2 replicates. Cell size 1 cm field. Variety is “Nonghu 10”, August 2 planting. Treatment: (A) Cyanobacteria: algae on August 4, 1978, 100 kg / acre, 2 times the pressure of algae, algae amount of 1,720 kg / acre. (B) Hongping: the same day Pingping 100 pounds / mu, down Ping 2 times,