Ningxiangjing 11

Approval number: National Approved Rice 20196173

Variety name: Ningxiangjing 11

Breeders: Yuan Longping Agricultural High-Tech Co., Ltd., Nanjing Agricultural University Rice Research Institute

Variety source: Xu 93508/09CJ15

Characteristics: Japonica conventional rice varieties. Single-season late rice planting in the middle and lower reaches of the Yangtze River has a full growth period of 146.3 days, which is 8.1 days shorter than the control Jiayou 5. The plant height is 95.9 cm, the ear length is 17.9 cm, the effective ear number per mu is 186,000 ears, the total number of grains per ear is 161.8, the seed setting rate is 86.6%, and the thousand-grain weight is 24.5 grams. Resistance: The comprehensive index of rice blast was 3.2 and 3.9 respectively in two years, the highest level of ear blast loss rate was 5, bacterial leaf blight was 5, brown planthopper was 9; moderately susceptible to rice blast, moderately susceptible to bacterial blight, and highly susceptible to brown planthopper . Main indicators of rice quality: the whole rice rate is 71.8%, the chalky grain rate is 22%, the chalkiness is 2.1%, the amylose content is 17.5%, the gel consistency is 72 mm, the length-to-width ratio is 1.9, reaching the "quality of edible rice varieties" in the agricultural industry Standard Level 2.

Yield performance: Participated in the regional test of the single-season late japonica group in the middle and lower reaches of the Yangtze River in 2017. The average yield was 549.75 kg per mu, which was 4.68% lower than the control Jiayou 5; the trial continued in 2018, and the average yield was 629.98 kg per mu, which was better than the control Jiayou 5. The yield was reduced by 4.45%; the average yield per mu in the two-year regional test was 589.87 kg, which was 4.57% less than the control Jiayou No. 5; in the 2018 production test, the average yield was 650.29 kg per mu, which was 0.18% lower than the control Jiayou No. 5.

The key points of cultivation techniques: 1. Sowing seeds at an appropriate time to cultivate strong seedlings. Generally sow in mid-to-late May, soak the seeds with nematine before sowing. The sowing rate of moist seedlings is 25-30 kg per mu of net seedling board, and the sowing rate of dry seedlings is 40-45 kg per mu of net seedling board. The amount is 3 to 4 kilograms. Enough base fertilizer should be applied to seedling fields, early weaning fertilizer should be applied, and tillering fertilizer should be increased during the three-leaf period to cultivate strong tillering seedlings. 2. Transplant timely and plant closely. Generally transplanted in early and mid-June, the seedling age is 25-30 days, the leaf age is about 6, each planting 1.8 to 20,000 holes and 3 to 4 seedlings per hole. The age of machine-planted seedlings is strictly controlled within 18 days, and the basic seedlings per mu of field are 60,000 to 80,000. 3. Scientific fertilizer and water management. Apply 18-20 kilograms of pure nitrogen per mu, pay attention to the combined application of phosphorus and potassium fertilizers. The appropriate ratio of base tiller fertilizer to ear fertilizer is 7:3. The base tiller fertilizer is based on the ratio of base fertilizer and 5-7 days after transplanting. :5, 5:5 for flower promoting fertilizer nitrogen and flower retaining fertilizer nitrogen are appropriate, combined with flower promoting fertilizer, 10 kg potassium chloride per mu; when the total number of stems and tillers per mu reaches 220,000, the field should be lightly set up in several times. In the field, the peak seedlings per mu should be controlled at about 300,000; in the later period, dry and wet alternate. 4. Prevention and control of diseases, pests and weeds. Timely control of rice planthoppers, stem borers, rice blast, sheath blight, etc.

Opinion: The variety meets the national rice variety certification standards and passed the certification. It is suitable for single-season late rice planting in the japonica rice areas where rice blast is mildly affected in Zhejiang, Shanghai, southern Jiangsu, Anhui Province, and Hubei Province.