Fengaizhan No. 1 (Rice)

Fengaizhan No. 1 is a new rice variety with conventional high quality and high yield, which is bred by the cross between Fengqing dwarf and long filament used by Rice Institute of Guangdong Academy of Agricultural Sciences.

From 1995 to 1996, the variety participated in the early regional test in Guangdong Province and Hainan Province, and the average yield per mu was 404.82 kg and 442.6 kg respectively, which increased by 5.96% and 16.51% compared with the control Qishanzhan and Qigui 25, with the highest yield per mu reaching 642.5 kg. The rice quality is good. Determined by the milking chamber of China Rice Institute, the brown rice rate is 80.9%, the milled rice rate is 73.7%, the head rice rate is 64.1%, the transparency grade 3, the grain length 6.3 mm, the aspect ratio 3.2, the chalkiness rate 22%, the chalkiness 5.7%, the gel consistency 56 mm, the amylose content 24.4%, and the protein content 11.9%. The eight indexes of brown rice rate, milled rice rate, head rice rate, grain shape, gelatinization temperature, gel consistency, amylose content and protein content reached the first-class standard issued by the Ministry. Medium resistance to rice blast and high resistance to bacterial blight.

The planting of Fengaizhan No. 1 showed that it matured late in early planting and early in late planting. Dwarf, plant height 95cm 100cm in Guangdong province, plant height 85cm in Hainan province, effective ear 210000-220000 ears per mu, total grains per panicle 120grains, seed setting rate 73%-74%, 1000-grain weight 19.5-21.5g. The plant type is good, the leaf is thick and straight, the stem is strong, resistant to fertilizer and lodging, and the tillering ability is medium, so it is suitable for high yield cultivation. The disadvantage is that the temperature drops in the later stage, and the mature color is not good, which affects the seed setting rate.

Rice Institute of Guangdong Academy of Agricultural Sciences

Region and technology this variety is planted in Guangdong, the whole growth period is 126-133 days in early season, and 114,137 days in Hainan, so it is suitable for both early and late planting in South China, and the suitable planting area is 87.75 million mu. At present, it has promoted 950000 mu and increased the yield of rice by 41 million kg.

Cultivation rules:

1. Early planting and safe sowing (the stable period of daily average temperature ≥ 12 ℃) should be considered in the suitable sowing time, and safe full heading in late planting, especially those planted late, should not be sowed too late, so as not to affect the fruiting of the variety due to excessive temperature drop in the later stage.

two。 The sowing rate of sparse sowing and strong seedling field should be reasonably determined according to different seedling types: the sowing amount per mu of large seedlings is 1012kg, that of small and medium seedlings is 1520kg per mu, and that of throwing seedlings is 1.5kg per mu.

3. In reasonable close planting and transplanting, the planting density and the number of seedlings should be strictly controlled. generally, 18000 ~ 20000 seedlings per mu should be planted, and 3 seedlings per tree should be planted shallowly.

4. Balanced fertilization seedling field and field should apply sufficient base fertilizer. Generally, 20-25 kg calcium superphosphate per mu should be applied as base fertilizer, and field base fertilizer should account for about 25%-30% of the total fertilizer application, mainly organic fertilizer or compound fertilizer. Early application of topdressing fertilizer and suitable application of tillering fertilizer should be applied twice in 3-5 days and 10-12 days after transplanting, respectively. An appropriate amount of medium-term fertilizer is applied, which is generally applicable in the early stage of young panicle differentiation, accounting for 15%-20% of the total fertilizer application; strict control of late nitrogen application, late fertilizer should be based on phosphorus and potassium or external topdressing is better.

5. The maturity rate of this variety is slower in the later stage of harvest, which is about 5 days longer than that of the general variety, and the late maturity time should be appropriately prolonged.