At present,there are no harvesters specifically adapted to process peanuts after cutting stalks.In particular,methods for harvesting peanuts after cutting stalks have not been reported thus far.Therefore,to utilize pe...At present,there are no harvesters specifically adapted to process peanuts after cutting stalks.In particular,methods for harvesting peanuts after cutting stalks have not been reported thus far.Therefore,to utilize peanut stalks as feed when harvesting plastic-film-grown peanuts,and to improve industry benefits,a three-stage harvesting method is proposed herein.In view of the three-stage harvesting method,the peanut stalks are cut before digging,with the remaining peanut plants being shorter,thereby increasing the peanut pod-stalk ratio.To investigate the adaptabilities of existing harvesters in harvesting peanuts after cutting stalks,three types of peanut harvesters-the self-propelled pick-up combine harvester,trailed pick-up combine harvester,and peanut picker were used to conduct a comparative test on harvesting intact peanut plants and plants after cutting stalks.The loss,breakage and impurity rates were used as evaluation indicators.The loss rates of these three harvesters were 14.64%,16.44%and 1.33%;the breakage rates were 21.28%,21.92%and 20.00%,and impurity rates were 4.60%,8.76%and 9.06%.Analysis of variance showed that cutting stalks had a significant impact on the work qualities of the three harvesters(p<0.05).With regard to the loss rate,results revealed that:the two peanut combine harvesters could not be adapted to harvest peanut plants after cutting stalks.The three harvesters had good adaptability to harvest peanut plants after cutting stalks,considering the breakage rate;however,based on the impurity rate,the three harvesters could not be adapted to harvest peanut plants after cutting stalks.The losses of the two combine harvesters consisted mainly of dropped and missed picking,with the sum of the losses accounting for 99.87%and 97.99%of the total losses of the two harvesters,respectively;this suggests that the drum pickup of the combine harvesters could not adapt to harvesting the peanut after cutting stalks.The breakage rates of the three harvesters were considerably reduced,suggesting that the 展开更多
基金This study was financially supported by the National Natural Science Foundation of China(51905282)the Chinese Academy of Agricultural Sciences basic research business fee special(S201917,S202011-02)+1 种基金the China Agriculture Research System(CARS-13-harvest mechanization)the Green farming and mechanization of the underground fruits harvesting innovation project of the Chinese Academy of Agricultural Sciences。
文摘At present,there are no harvesters specifically adapted to process peanuts after cutting stalks.In particular,methods for harvesting peanuts after cutting stalks have not been reported thus far.Therefore,to utilize peanut stalks as feed when harvesting plastic-film-grown peanuts,and to improve industry benefits,a three-stage harvesting method is proposed herein.In view of the three-stage harvesting method,the peanut stalks are cut before digging,with the remaining peanut plants being shorter,thereby increasing the peanut pod-stalk ratio.To investigate the adaptabilities of existing harvesters in harvesting peanuts after cutting stalks,three types of peanut harvesters-the self-propelled pick-up combine harvester,trailed pick-up combine harvester,and peanut picker were used to conduct a comparative test on harvesting intact peanut plants and plants after cutting stalks.The loss,breakage and impurity rates were used as evaluation indicators.The loss rates of these three harvesters were 14.64%,16.44%and 1.33%;the breakage rates were 21.28%,21.92%and 20.00%,and impurity rates were 4.60%,8.76%and 9.06%.Analysis of variance showed that cutting stalks had a significant impact on the work qualities of the three harvesters(p<0.05).With regard to the loss rate,results revealed that:the two peanut combine harvesters could not be adapted to harvest peanut plants after cutting stalks.The three harvesters had good adaptability to harvest peanut plants after cutting stalks,considering the breakage rate;however,based on the impurity rate,the three harvesters could not be adapted to harvest peanut plants after cutting stalks.The losses of the two combine harvesters consisted mainly of dropped and missed picking,with the sum of the losses accounting for 99.87%and 97.99%of the total losses of the two harvesters,respectively;this suggests that the drum pickup of the combine harvesters could not adapt to harvesting the peanut after cutting stalks.The breakage rates of the three harvesters were considerably reduced,suggesting that the
