9 you 418 (formerly 9a/418) (Rice)

Variety source: 920lAxC418.

Characteristics: three-line hybrid japonica rice combination. The plant height is 120ml 125 cm, the total number of leaves of the main stem is 18, the shoot elongates 6 internodes, the plant is elegant and straight, the leaf is lifted up, the leaf color is dark, the tillering ability is above, the panicle rate is about 70%, the angle between flag leaf and stem after heading is 10.4 degrees, 10 ears per plant, ear length 25 cm, 190 grains per panicle, seed setting rate 80% 85%, 1000-grain weight 26-27 grams, easy to thresh. The ear layer is neat, under the leaf, the stem is elastic, the grain is yellow and the hairs are medium. Head rice rate 61.4%, chalkiness 21.7%, amylose content 16.5%. The whole growth period is 150ml and 155days, and the growth period is moderate. Prolific. The yield stability is good and the adaptability is wide. Medium resistance to rice blast, middle and lower quality of rice. In 1998, he participated in the regional trial of the ripening period group of Yujing 6 in the northern rice region of the country. The average yield per mu was 614.3 kg, which was 8.6% higher than that of the control Yujing 6. In 1999, the average yield per mu was 629,8kg, 10.6% higher than that of the control Yumeng 6, and the average yield per mu was 637.7 kg in the 1999 production test.

Key points of cultivation: early planting at the appropriate time, sowing at the end of April in Huaibei and early May in Huainan, the sowing rate in seedling field is 10mur15kg / mu, and early planting should be made in the first and middle of June. The row spacing of planting density is 23 Mel 26 cm, the plant spacing is 10 mi 13. 2 cm, and the basic seedling is 80 000 to 100 000. The total nitrogen application rate for 700kg rice per mu is about 1820kg, the suitable proportion of basal fertilizer, tillering fertilizer and panicle-grain fertilizer is 5:3:2, the basic fertilizer is mainly organic fertilizer, properly adding phosphorus and potassium fertilizer, early and heavy application of tiller fertilizer, panicle fertilizer emphasis on flower protection fertilizer, intermittent irrigation is adopted in the filling stage, the former water can not be seen after the water, and the water should not be cut off prematurely in the later stage. Soak seeds with chemicals before sowing to prevent evil seedling disease, and at the same time, according to the prediction of diseases and pests, timely prevention and control of diseases and pests.

Suitable range: southern Shandong and Huaibei.