Research And Application Of Introducing New Varieties And Its Cultivation Technique In Plateau Summer Vegetables In Gulang County

This study involves the baby cabbage varieties comparative test, a year with two stubbles of baby cabbage variety--tai-tai vegetable cultivation techniques, the mulch degradation process and effect research of tai-tai vegetable, control effect of pesticides on tai-tai vegetable plutella xylostella, identification and biological control of tai-tai vegetable plutella xylostella, standardized cultivation technique procedures of tai-tai vegetable in southern mountainous area of Gulang, scale technology application and benefit analysis and the development strategies of tai-tai vegetable industry. The results of the study are as follows:1. The baby cabbage varieties comparative test showed that tai-tai vegetable was in the first place of all testing varieties with the largest high ball and the ball diameter, strong degree of tight, highest yield, and more 365.1 kg/mu yield than that CK. Yellow gold queen and spring month were in second and third place respectively, while the three varieties can be a large number of promotion in Gulang production. At the same time the cultivation techniques of tai-tai vegetable was putted forward that was suitable in southern mountainous area of Gulang planting vegetables.2. The degradation rate comparison test of ordinary polyethylene mulch and biologically degradable mulching film can be controlled in the process of vegetables planting showed that two kinds of membranes degradation rates increased with ground temperature increasing, but the degradation effect of biologically d egradable mulching film can be controlled was much higher than ordinary polyethylene mulch in the tai-tai vegetable processing plant. Gansu no. 2 was a little better than Gansu no. 1 in degradation effect from degradation of weight, total degradation rate and degree of membrane appear cracks and holes. Two kinds of degradable mulching film were no residue degradation after 160 days, but because of different application conditions in the Gulang, the fully biodegradable conclusion of this product is remains to be further studied.3. Insecticidal effect of 6 kinds of new pesticides on the field experiment, the results showed that the control effect of various processing increased gradually along with the increase of the number of days after spraying and in a certain period of time to maximum effect. Two weeks later, 1.8% of white mite net oil diluted 3000 times processing was as high as 92.48%, BT emulsion of diluted 250 times was 91.88%. Overall, the 1.8% of white mite net oil diluted 3000 times control effect was the best, but other pretty were good also.4. A method to identify tai-tai vegetable plutella xylostella and the corresponding prevention measures were putted forward from the life habits and characteristics. The prevention and control measures including agricultural control, physical control and biological control.5. Tried to find out the cultivation techniques of tai-tai vegetable in Gulang. That contained Choose the seed, crop sequence arrangement, ploughing planting, field management, and timely recovery.6. The plateau summer vegetables plant area of southern mountainous area of Gulang accomplished promotion area of 50400 mu pollution-free standardized production technology of tai-tai vegetable in three years, among them: 10500 mu in 2011, 18900 mu in2012, 21000 mu in 2013. It has a huge economic benefit, social benefit and ecological benefit in Gulang County.