Study On Briefly Efficient Crop Rotation System And Cultivation Techniques Of Vegetables In Taebaek Mountain Region

In recent years vegetable industry has achieved good development benefited fro m its unique natural advantages in Taebaek mountain region.But because of the unr easonable planting habits that planting the same kind of vegetables in the same piec e of land in successive years,continuous cropping obstacle,soil-borne pathogen,and insects have become an increasingly serious concern,which also hurt farms'income.In this study,to measure plasmodiophora brassicae resting spore concentrations in t he soil with different crop rotation system,summarize the cultivation technique and corresponding benefits of different crop rotation system in Taebaek mountain region,the results are as follows:1.To measure plasmodiophora brassicae resting spore concentrations in continuo us cropping soil,founded that as the growth of the vegetables continuous cropping years,the number of resting spores grow as well,and the numbers in the soil for c ontinuous cropping 8 years is 11.5×10~4 bacteria per gram,the damage of cruciferae clubroot disease become severe due to continuous cropping of cruciferous vegetable s.To measure plasmodiophora brassicae resting spore concentrations in the soil wh ich rotation planting or interpanting 1,2,3 different stubble shifts of non-crucifer ous vagetables,the results show that all amount have been reduced significantly comp ared with the amount in continuous cropping soil.And as the reduction of primary i nfection source of clubroot disease after crop rotation and interplanting,the damage o f cruciferae clubroot disease lighten,and more stubble shifts of rotation system,the control effects is better.Comprehensive analysis all crop rotation system,the control effects of rotated planting beans,lettuce,onions are better than other vegetables.To measure different continuous cropping soil pH and crop rotation soil pH,the results show that the long-term continuous cropping cruciferous vegetables exacerbat ing soil acidification and the risk of root disease.Crop rotation and interplanting ca n increase soil pH value,and effectively solve the problem of soil acidification,so as to prevent the happening of the root disease.The control effects of planting the c ucurbitaceae vegetables is best.2.To analyze the corresponding benefits of different crop rotation system,the r esults show that the garlic sprout-cruciferous vegetable crop rotation system is the b est optimal cultivation mode in Taebaek mountain region,which earns 9000-11000 y uan per 667 m~2,and the other system suitable for Taebaeki mountain region and ob taining good benefit are cruciferous vegetables-lettuce,celery rotation mode and cabb age,cauliflower,broccoli-zucchini,pumpkin rotation mode,which earn 6000-8000 yu an per 667 m~2.Chinese cabbage and lettuce interplanting system is the briefest and most efficie nt interplanting model,which can earn 6000-7000 yuan per 667 m~2.The spring corn and turnip rotation pattern is the best interannual grain-vegetable rotation panttern.I n the rotation system of planting two crops or one crop in one year located betwee n 1700-1900 meters,Chinese cabbage,precocious cabbage and lettuce rotation mode is the briefest and most efficient rotation pattern,earning 5000 yuan per 667 m~23.To sum up several briefly efficient crop rotation system and corresponding c ultivation technique suitable for Taebaek mountain region,including the cruciferous v egetables-lettuce,celery rotation system,garlic sprout-cruciferous vegetables rotation s ystem,and Chinese cabbage and lettuce interplanting system.