China News Network Honghe, April 21 (Cun Qi Li Airong) The reporter learned from the Propaganda Department of the Honghe Prefecture Committee of Yunnan Province on the 21st that Yuan Longping’s super hybrid rice "Super You Qianhao", which has completed seedlings, was in Yuan Longping, Honghe Prefecture, Yunnan Province on the 20th. Super hybrid rice was transplanted to the field in Mengzi Base.
This year, the average yield per mu of "Chaoyouqian" super hybrid rice is expected to exceed 1,200 kg.
The picture shows the seedling transplanting site.
Photo by Cun Qi
"This year, the factory mechanized seedling raising method is adopted. The seedlings can be grown within 25 days and transplanted into the field." According to the staff of the Mengzi City Agricultural Technology Extension Center, the mechanized seedling raising not only has a shorter cycle, but the quality of the seedlings raised is also higher. Combined with manual quantitative and precise cultivation and precise quantitative fertilization technology, more than 2,000 trays of seedlings are planted in 101 acres of paddy fields like needles and embroidery, laying a solid foundation for a bumper harvest in autumn.
The picture shows the seedling transplanting site.
Photo by Cun Qi
Different from previous years, a control experiment of medium-density planting and high-density planting was implemented in the base this year-keeping the seedling row spacing unchanged at 30 cm, and the plant spacing shortened from 11.6 cm to 10 cm.
"Although it looks like a minor adjustment, this 1.6 cm change will allow 2,000 more seedlings to be planted per acre of paddy field." The staff said that planting more seedlings on the same area means higher yields. Too high planting density is not conducive to the healthy growth of seedlings, and ultimately backfires.
The picture shows the seedling transplanting site, and the staff is instructing the villagers to transplant the seedlings.
Photo by Cun Qi
It is reported that only half of the paddy fields will be planted with high density this time. The aim is to pursue high-density planting to obtain high yields. At the same time, through experiments, we will further study the impact of high-density planting on the growth conditions of seedlings such as light and ventilation. Rigorous methods have found the best balance between planting density and yield, and steadily created a new high per mu of super hybrid rice "Chaoyouqian".
It is understood that since the "Super Youqian" super hybrid rice research experiment was launched in Mengzi City in 2017, the annual output has made new breakthroughs. In 2020, the average yield per mu will reach 1134.6 kg, and the average yield per mu this year is expected to exceed 1,200 kg. .
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