Sichuan taro 39 (potato)
It was approved by Sichuan Province in 1996. A cumulative promotion of 2 million mu.
The main results are as follows: (1) Variety source: it was bred by 379645.4X7XY-1 hybridization in 1991 by crop Institute of Sichuan Academy of Agricultural Sciences.
(2) characteristics: field observation showed that the ability of resistance to virus disease, late blight and bacterial wilt was stronger than that of Sichuan taro 56 and Mila.
(3) yield performance: in the multi-point experiment from 1922 to 1994, the average yield of fresh potato per mu was 1571.8 kg per mu in 3 years, which was 14.22% higher than that of the control virus-free Sichuan taro 56 and 24.79% higher than that of the main promoted seed Mila. In the 1995 production test, the average yield of fresh potato per mu was 1451.4 kg in six pilot projects, which was 29% higher than that of the control Sichuan taro 56 and Mila. 8-34.4%. The rate of commercial potato is 73. 95%; starch content 15.14%.
(4) suitable planting area: it is suitable to be planted in the potato production area of the province, and the area below 1000 meters above sea level can be planted in spring and autumn.
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Common intercropping patterns in cotton fields (3) interplanting patterns of cotton and potatoes
The cotton and potato interplanting model has a large application area in northern Jiangsu, the symbiotic period of the two crops is not long, the mutual influence during the symbiotic period is small, and there is a complementary effect in fertilizer utilization. In the later stage of potato growth, there is enough fertilizer and water in the field, which is beneficial to cotton seedling emergence, and the double high yield of cotton and potato can be obtained. generally, the yield of potato is 2000-2500kg per mu, the yield of cotton is 80kg-100kg per mu, the output value per mu is 2500-3000 yuan, and the net income is 1500-2000 yuan. General border width of about 3 meters, cotton size row planting, large row spacing of 150 cm, small row
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