1.BS EN 13108-4-2016沥青混合物.材料规范.热压制沥青2.BS EN 13108-5-2016沥青混合物.材料规范.沥青玛蹄脂碎石3.BS EN ISO 7027-1-2016水质.浊度的测定.测算方法4.BS EN ISO 4629-2-2016色漆和清漆用粘合剂.羟值的测定.使用催化剂的...1.BS EN 13108-4-2016沥青混合物.材料规范.热压制沥青2.BS EN 13108-5-2016沥青混合物.材料规范.沥青玛蹄脂碎石3.BS EN ISO 7027-1-2016水质.浊度的测定.测算方法4.BS EN ISO 4629-2-2016色漆和清漆用粘合剂.羟值的测定.使用催化剂的滴定法5.BS EN ISO 4759-3-2016紧固件公差.螺栓、螺钉和螺母用垫圈产品等级为A。展开更多
A study was taken up on integration of ducks in private and community fish ponds in Tami Nadu. A total of 50 ha of land under private holding and community water bodies each were selected to implement this model. Duck...A study was taken up on integration of ducks in private and community fish ponds in Tami Nadu. A total of 50 ha of land under private holding and community water bodies each were selected to implement this model. Ducks were integrated based on the water spread area. Fodder, fruit, nuts, fuel, timber trees and vegetables were grown on pond bunds. Control units of fish ponds of farmers holding without integration of ducks also were taken up. A control unit also was established in the university farm land with and without integration of ducks. In private water bodies coconut trees and banana fetched additional revenue. During the first year the average fish production from the private land model was 1,552 kg and 1,731 kg for the first and second year respectively per Hectare. In community ponds the yields were 1,610 and 1,337 kg for the first and second year respectively. In field control units there was no increase in fish yield over the years. In private water bodies the beneficiaries got egg yield of 148 and 90 eggs and community water bodies 144 and 127 eggs per bird were obtained during first and second year resoectivelv.展开更多
文摘1.BS EN 13108-4-2016沥青混合物.材料规范.热压制沥青2.BS EN 13108-5-2016沥青混合物.材料规范.沥青玛蹄脂碎石3.BS EN ISO 7027-1-2016水质.浊度的测定.测算方法4.BS EN ISO 4629-2-2016色漆和清漆用粘合剂.羟值的测定.使用催化剂的滴定法5.BS EN ISO 4759-3-2016紧固件公差.螺栓、螺钉和螺母用垫圈产品等级为A。
文摘A study was taken up on integration of ducks in private and community fish ponds in Tami Nadu. A total of 50 ha of land under private holding and community water bodies each were selected to implement this model. Ducks were integrated based on the water spread area. Fodder, fruit, nuts, fuel, timber trees and vegetables were grown on pond bunds. Control units of fish ponds of farmers holding without integration of ducks also were taken up. A control unit also was established in the university farm land with and without integration of ducks. In private water bodies coconut trees and banana fetched additional revenue. During the first year the average fish production from the private land model was 1,552 kg and 1,731 kg for the first and second year respectively per Hectare. In community ponds the yields were 1,610 and 1,337 kg for the first and second year respectively. In field control units there was no increase in fish yield over the years. In private water bodies the beneficiaries got egg yield of 148 and 90 eggs and community water bodies 144 and 127 eggs per bird were obtained during first and second year resoectivelv.
