牛粪不同堆肥处理对观赏向日葵生长发育的影响

Effects of Different Cow Dung Composts on Development of Ornamental Sunflower

以新鲜牛粪为原料,利用不同的工艺技术进行堆肥处理后,作为基肥应用于观赏向日葵,检测牛粪堆制有机肥对观赏向日葵生长发育的影响。结果表明:牛粪堆制的有机肥与相当养分含量的化肥相比,更能促进观赏向日葵生长和开花;牛粪堆制有机肥的工艺技术影响有机肥肥效的发挥,其中牛粪初始秸秆添加量为7.5%,通气10 min,物料初始含水量60%,接种自制菌剂的处理7与牛粪初始秸秆添加量5%,通气30 min,物料初始含水量50%,接种自制菌剂的处理6效果最好,可以达到既能解决牛粪污染,又能创造优质肥料的目的。

This thesis mainly studied the effects of cow dung composts as base fertilizers used in ornamental sunflower. According to measuring growth and development indexes of ornamental sunflower, such as plant height, basal stem, leaf area, chlorophyll content, flower stalk, dry weight of inflorescence, shoot and root, fertilizer efficiency of cow dung composting on ornamental sunflower was detected. The results showed：compared with the chemical fertilizer, the fertilizer efficiency of cow dung composting fertilizers was better on ornamental sunflower at the same nutrient content levels; the technology of cow dung composting influenced efficiency of organic fertilizer to play. The optimum conditions of cow dung composting were that straw addition was 7.5 % ;ventilation time was10 min;water content was 60% ;self-prepared microbial agent or straw addition was 5% ;ventilation time was 30 min; water content was 50%;self-prepared microbial agent, in which way not only the contaminations of the cow dung composting could be reduced, but also the cow dung composting could be turned to high-quality fertilizers.