High quality natural B-you 840 rice

Characteristics:

Indica hybrid rice. The whole growth period is 152 days, the plant height is 108.3 cm, the total number of grains per ear is 166, the number of grains per ear is 135, the weight of 1000 grains is 30 grams, the effective ear per mu is 175000, and the ear rate is 63.3%. Rice quality test: brown rice rate is 81.0%, milled rice rate is 71.0%, head rice rate is 61.4%, grain length is 7.0mm, length width ratio is 2.9, chalky grain rate is 30%, chalkiness is 3.6%, alkali dissipation value is 6.8, transparency level 1, moisture content is 11.5%, reaching the national standard of high quality rice level 3. Identification and evaluation of resistance: susceptible to rice blast and bacterial blight.

Output performance:

From 2008 to 2009, he participated in Yunnan Provincial Hybrid Rice Regional Test (Group C), with an average yield of 648.6 kg per mu in two years, 5.31% more than the control, and 71.43% more than the control. In the production test, the average yield per mu was 632.8kg, 4.7% more than that of the control Ⅱ You 838, and the rate of point increase was 60%.

Key cultivation points:

① Timely sowing, the sowing date is the same as Shanyou 63, and the seedling age is 30-35 days;


② Reasonable dense planting, 80000-120000 seedlings per mu are required;


③ Reasonable fertilization, sufficient base fertilizer, early topdressing, N, P, K fertilizer application;

④ Disease and insect prevention: pay attention to the prevention and control of rice blast, bacterial leaf blight and other pests.