Validation: the species meet the criteria for the validation of rice varieties and are validated. It is suitable to grow in shanghai。
Ii. Characteristics
1. Conventional rice varieties of prematured rice。
2 one-season rice cultivation in shanghai, with a total fertility period of about 145 days, 4. 8 days later than viapria no. 1。
3. The varieties are compact, green and green, with low fracturing power, high osmosis, medium osmosis, high yield and medium particle size。
4. Grow up well and finish up well。
Five, 99. 5 centimetres tall, 16. 0 centimetres long, 229,000 acres valid, with a total of 117. 6 grains per ear, with a firmness rate of 88. 9 per cent and a weight of 24. 1 g in thousands。
6. Repressiveness is high, fallout is high, field surveys are light and combined。
7 major indicators of rice: whole-meat rate 69. 5 per cent, rough-meat rate 83. 3 per cent, glue density 76 mm and straight chain starch content 9. 9 per cent。
Elements of cultivation techniques
1. Cultivate in due course, and be properly planted。
2. Live rice is seeded around 20 may, with acreage being contained at around 4 kg, acreage is recommended for planting in late april, with narrow range plugs in mid-may and basic seedlings being controlled at between 50,000 and 60,000 acres。
3. Fertilizers must be prepared in such a way as to be affordable, stable in the medium term, and not too late。
4. General field blocks, with a total nitrogen use of about 16 kg, with approximately 80 to 90% fertilizer in the preceding period, no nitrogen application in the medium term and 10 to 20% or no subsequent application。
5. Plasma management is well managed。
6. The planting of crops is timely。
7. Requiring a series of plantings for the purpose of preventing the freckles and reducing their loss。
8. The measures taken during the harvest are closely related to the good and bad quality of the rice, and the early preparation for the timely harvest is generally known as 9 maturity (i. E. 90 per cent of the grains are yellow ripe for harvest)。
9. The harvesting process is designed to avoid rapid dehydration of rice and to cause the fragmentation of rice grains, reduce the rate of whole rice and reduce the quantity of rice, which can be held at 16 per cent, in order to maintain good quality。
Iv. Production performance
In 2017, the average acre production was 536. 9 kg, a 1. 4 per cent increase over visumi no. 1, which was not significant。
The test was resumed in 2018, with an average acre production of 588. 5 kg, a 0. 9 per cent increase compared to visuma no. 1, which was not significant。
In 2018, an average of 582. 7 kg of acre production was used in a production experiment organized by the agricultural technology extension service in the carten region, an increase of 2. 2 per cent over the production of no. 1 of visuma。
