| This article conducted a comprehensive survey of agricultural organic waste in Yuncheng County,Heze City,Shandong province.Through the field investigation,the data of various kinds of agricultural organic waste resources amount and the status of resource utilization in the country were obtained.On this basis,the environmental insect treatment technologies such as Protosia brevitarsis Lewis and Tenebrio molitor were introduced,and the experiment on the best ratio of "Corn Straw and Pig Manure" treated by Protosia brevitarsis Lewis and the experiment on vegetable wastes treated by Tenebrio molitor were carried out.Based on the experimental data,the feasibility of extending the technology of environmental insect treatment in the country was demonstrated,in order to provide an ecological treatment mode for the utilization of agricultural organic waste resources in Yuncheng County,and also provide a reference for promoting the environmental insect treatment technology in the country.1.Based on the estimation of organic waste resources of agricultural production in Yuncheng county from 2015~2019 through the method of grass-grain ratio,it is known that the total annual amount of agricultural organic waste resources in Yuncheng country has been kept above 4.5 million tons in recent five years,which can be divided into four big categories of crop straw,animal manure,vegetable tailing,and bacteria residue,including 19 small categories such as corn straw and pig manure.2.The survey shows that the crop straws in Yuncheng County are mainly corn straw and wheat straw,the livestock and poultry manures are mainly pig manure,cattle manure and sheep manure,and the vegetable tails are leafy vegetables,cabbage,melons and vegetable,eggplant and fruit.Corn straw,wheat straw,pig manure,cattle manure and sheep manure account for more than 85% of the total agricultural organic waste resources in the country.3.The survey shows that the current utilization rate of agricultural organic waste in Yuncheng County has reached more than 87%,of which the utilization rate of crop straw is the highest,reaching over 91.5%;the utilization rate of livestock and poultry manure is 87.8%,the utilization rate of vegetable wastes resources is 24.5%,and the utilization rate of bacterial residue is 38.8%.4.The treatment of corn straw and pig manure mixture with different proportions by the third instar larvae of Protaetia brevitarsis Lewis has significant differences in feeding ability and transformation ability.Feeding 100 g 40%corn stalk and 60%pig manure ratio feed,the feeding amount can reach 72.47 g,the manure removal amount can reach 58.09 g,the body weight can be increased by 1.24 g,which is better than other treatments,and is the optimum ratio feed.5.The experiment shows that biological growth and fecal volume of Tenebrio molitor as the proportion of vegetable wastes quality increases,however,the mortality rate also increases.Feeding 1000 g of 75% vegetable wastes mixture and 25% wheat bran,the cumulative feeding amount of Tenebrio molitor is 970.52 g,The cumulative weight gain is209.17 g,and the cumulative defecation amount is 271.96 g,which are significantly higher than other treatments.The treatment of 75% vegetable wastes mixture and 25% wheat bran is the optimum feed ratio among the four treatments. |
PDF Full Text Request