Gangyou 725 (Rice)
This variety was bred by Agricultural Science Research Institute of Mianyang City, Sichuan Province.
The main characteristics of this variety belong to medium indica late-maturing three-line hybrid rice variety. The whole growth period is similar to that of Shanyou 63, with good yield, wide adaptability and susceptibility to rice blast.
In the suitable area, this variety is suitable to be planted as one-cropping middle rice in Pingba and hilly areas of Sichuan and less than 1100 meters above sea level in Guizhou Province.
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Soil standard for high yield rice
The main results are as follows: (1) the profile is obvious, the plough layer is deep, and the depth of plough layer for high yield rice with good texture is about 20 cm, which requires that the plough layer is thick and soft, the content of aggregates is high, the structure and ventilation are good, and the tillage is suitable. The plough layer is too shallow, the rice root system is underdeveloped; the plough layer is too deep, it is easy to produce floating mud, which is not conducive to rice rooting and early development. The texture is moderate, but the sand is too sticky, the plough is not large when ploughing, it is easy to rake, the paste is not hardened when ploughing, the cracks are not opened when draining and lying in the sun, and the cracks are easy to close after rewatering. (2) Organic
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Gangyou 22 (Rice)
Breeding units: crop Research Institute of Sichuan Academy of Agricultural Sciences and Rice Research Institute of Sichuan Agricultural University. Approval: it was approved by Sichuan crop Variety approval Committee in 1996, Guizhou crop Variety approval Committee in 1996, and the National crop Variety approval Committee in 1998. Variety approval number: national examination and approval rice 980009. Variety source: gang 46AXCDR22. Characteristics: medium indica late maturing hybrid rice. The plant height is about 110 cm, the plant type is moderate, and the stem
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