Baliangyou 96 (Rice)

Baliangyou 96 is a mid-maturing two-line early hybrid rice combination derived from an Nong 810S and Huai 96-1 by the Institute of Agricultural Sciences of Huaihua City, Hunan Province.

The characteristic plant height is moderate, 80~85cm, the plant type is compact, the stem is tough, resistant to fertilizer and lodging, the color is good in the later stage, the green stalk seed is yellow, the tillering ability is general, the panicle rate is high, the basic seedling per hectare is 1.2 million ~ 1.5 million, the highest is about 4.5 million, the effective panicle is 3.6 million ~ 3.9 million, the total grain number per panicle is 9500105, the seed setting rate is more than 80%, and the 1000-grain weight is 24.8g. The quality of rice is good. According to the determination of China Rice Institute, the comprehensive quality has reached the second-grade high-quality rice standard issued by the Ministry. The field showed mild damage of rice blast and moderate resistance to bacterial blight.

Yield performance: Baliangyou 96 in the Tongcheng early rice regional test in 1999, the average yield 7.23t/hm2, ranking first among the tested varieties, increased by 21.5% over Jiayu 948 and 5.2% over Xiangliangyou 68. In the early rice regional test in 2000, the average yield of Baliangyou 96 was 7.52t/hm2, ranking first among the tested varieties, with an increase of 23.4% over Jiayu 948 and 4.5% over Xiangliangyou 68. In 2000, the seed company of our city demonstrated and planted 1Ohm2 in Bainian Village, Xindu Town. After acceptance, 5 fields totaled 0.68hm2, the average yield was 7.19t/hm2, and the per unit yield of high-yield fields reached 7.96t/hm2.

Cultivator, Institute of Agricultural Sciences, Huaihua City, Hunan Province

Region and technology 1. The seeds were soaked with "less soaking and more dew, medicament treatment" to promote strong buds at the right temperature. The seeds were selected with clean water before soaking, the empty batch grains were removed, the seeds were soaked with "less soaking and more dew", and the seeds were disinfected with strong chlorine during the second soaking. Because the early hybrid rice is not tolerant to high temperature at the breast-breaking stage, the temperature during breast-breaking should be controlled at 32 ℃ ~ 35 ℃, which should not exceed 38 ℃, and the temperature during budding should be kept at 25 ℃ ~ 30 ℃, so as to avoid high temperature sprouting and make the buds neat and strong.

two。 Timely early sowing, sparse sowing, green more tillers and strong seedlings. In order to strive for the season, it is required to sow seeds from March 28 to 31, using arch film to cover soft disk green seedlings or conventional wet raising seedlings. For raising seedlings with floppy disk, 850m 900 pieces of seedling tray should be used per hectare, and the bud grain should be scattered evenly according to the amount used in the field. Sowing bud valley 225~300kg per hectare in the seedling field with conventional moist seedling raising. In order to improve the rate of mature seedlings, the special seedling strengthening agent for early rice should be used in raising seedlings in soft disk, and 1000 times of dimethazone solution should be sprayed on the surface of seedling field in conventional wet raising. It is necessary to apply sufficient basic fertilizer in the seedling field and apply "weaning fertilizer" early. If there are conditions for conventional wet seedling raising, it is necessary to prolong the time of film mulching in order to achieve the purpose of carrying more tillers in the seedling field.

3. Throw, insert, throw and insert enough basic seedlings at the right time. Seedling age 25~3Od, that is, the leaf age of conventional wet seedling raising is 5.5 ~ 6.0 leaves, and the leaf age of soft disk seedling raising is about 4 leaves, which can be transplanted or thrown. Planting 375000 holes per hectare, 2 seed seedlings per hole, 1.2 million-1.5 million basic seedlings per hectare, planting density 20cm × 13cm, washing little or no washing when pulling seedlings, transplanting with soil. The field of throwing seedlings requires that the rotten should be leveled, with 330000 to 375000 holes per hectare.

4. Apply enough base fertilizer and apply topdressing early. Baliangyou 96 needs medium fertilizer, yield more than 7.5 tons per hectare, pure nitrogen 150~180kg, less fertilizer in fertilizer field and more in thin field. The ratio of nitrogen, phosphorus and potassium was 10.7 and 0.7, which required sufficient basal fertilizer, combined with weeding 5-7 days after planting, topdressing tiller fertilizer, and panicle fertilizer in the later stage. After heading, 1500002250g potassium dihydrogen phosphate per hectare was sprayed as strong seed fertilizer.

5. Strengthen the water slurry management and roast the field at the right time. Transplanting requires transplanting seedlings in shallow water, protecting seedlings with suitable water, frequent irrigation in shallow water to promote tillering, aeration of dry field water after fertilization, and reirrigation of new water to promote deep roots and flourish new roots. When the number of seedlings reached 3.6 million / hm2, roasting the field to control ineffective tillering, the roasted field should be lighter than conventional rice, generally baked until the mud was bluish gray, people could not sink into the field, and intermittent irrigation was carried out after rewatering. The seedling throwing field requires throwing seedlings, standing seedlings and dividing the seedlings in shallow water. When the number of seedlings reaches 2.7 million / hm2, the field can be drained and roasted, the muddy field can be re-roasted, the sandy field can be roasted lightly, and after baking with shallow water, it will naturally fall into the open field, then in shallow water, and repeated several times.

6. Comprehensive control of diseases and insect pests. Focus on the prevention and control of Chilo suppressalis, Chilo suppressalis medinalis and sheath blight.

The approval situation was examined and approved by Huaihua crop Variety approval Group in January 1999 and Hunan crop Variety approval Committee in February 2000.