Study Selection And Cultivation Techniques Of Varieties Of Major Winter Crops In Southern Zhejiang

Ecological type of region of southern Zhejiang is diversity,agricultural production is showing a multi type development and multiple cropping trend. Starting from the full use of annual temperature thermal resource perspective,the development of agriculture in winter, not only can the effective use of land resources, but also can increase the economic income, improve farmers’ labor enthusiasm. This paper studies the kind of winter crops in southern Zhejiang, current cropping patterns and corresponding production technology; through the study of rape, winter mustard, precocious fresh corn, beans and other crops in patterns and cultivation techniques, in order for the actual production provide appropriate plant varieties and technical reserves.1 Screening techniques and cultivation technology research shows that rapeseed varieties Zheshuang 6, Zheshuang 72, HUYOU 15, HM42 suitable for tillage and mechanized operations; Zheshuang 3, Zheshuang 72 Shanghai No.1 applicable miscellaneous oil canola and rapeseed flower stalk dual; application in production to 500mg/kg ethephon sprayed at 70% rapeseed pod ripe, or 80% of the canola pods mature spray Shi 1000mg/kg ethephon.2 Mustard and rice research showed that intercropping technologydew around the region to the south of Zhejiang Winter Sowing mustard; according to tumor-like stem and leaf mustard than draw the appropriate help delay harvest yield of winter mustard the increase in the level of the test, delayed until February 18 for the best harvest; winter mustard and rice intercropping pattern rice variety "998 days" planting three rows, spaced mustard rice stems 20cm nodular highest yield for suitable intercropping rice varieties and rice dishes ratio.3 Early spring fresh corn germination and seedling studies indicate insulation technology Soaking temperature to 30-40℃, soaking time for the 1.0-2.0h, using the incubator germination treatment 30-40℃ or wet straw blanket, bunk room air temperature of the heat source and the method can improve the germination rate of sweet corn; using pot seedling germination germination method can improve Zhefengtian sweet No.2 pick fresh start closing period; small shed+mulching methods most effective insulation this approach is good and low cost, easily farmers accepted.4 Bean yield cultivation technology research shows that on the test level, the yield increases with the density, the maximum output produced in the seeding density of 2,500/ acre per hole grains for the two conditions; low seeding density and planting fewer grains, although there are more conducive to the formation of branches and number of pods per plant, but the lack of long-volume groups, you need to increase by increasing the density of population and thus increase the biomass by correlation analysis results production.