Evaluating On The Tobacco Origins Of Organic And Strong Aroma In Chenzhou And Study On Main Cultivation Techniques

This study conducts a simple evaluation on producing environment of organic planting based Wansi Village Tobacco Production Base, Renyi Town, Guiyang County, Chenzhou, Hunan in accordance with state standards of production requirements of organic products and green products on producing environment and related studies on corresponding organic tobacco cultivation technologies. Origin evaluation mainly includes measurement of local air quality, pH value of soil and water source, content of heavy metal elements such as cadmium, arsenic and lead and comparison of these indicators with limit values stated by national standards. Main organic tobacco cultivation technologies include different application volumes of organic fertilizer (233.33kg/667m2,300kg/667m2and366.67kg/667m2) and different planting density (3levels respectively for plant and row spacing) to carry out a preliminary study on optimal organic fertilizer application volume and the fittest planting density in organic tobacco plantation management. The results show that:1. Air quality, pH value of soil and water source, heavy metal cadmium, arsenic and lead of the origin are better than state standards on related requirements on the origin environment.2. With unified cultivation measures and production technical specifications, organic fertilizer application volume of366.67kg/667m2presents the best integrated performance on tobacco plant development and on economic properties, physical properties and chemical composition of Flue-cured tobacco leaf.3. With unified cultivation measures and production technical specifications, planting density of plant spacing×row spacing=0.5m×1.1m,0.5m X1.2m and0.6m X1.1m present the best integrated performance on tobacco plant development and on economic properties, physical properties and chemical composition of flue-cured tobacco leaf.