Chinese Journal of Eco-agriculture最新文献

{"title":"Dynamic simulation of apple yield and dynamic response of deep soil moisture under rain-fed apple orchards of different planting densities at Baoji.","authors":"Fan Peng, Li Jun, Z. Lina, Cao Yu, Guo Zheng","doi":"10.3724/SP.J.1011.2013.01377","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2013.01377","url":null,"abstract":"More apples have been planted in recent years at Baoji,developing into a major apple cultivation area in the Loess Plateau where apple industry was critical for local rural economic development.Baoji is in a semi-humid climate zone where apple orchards are mainly rain-fed without artificial irrigation.Because apples need plenty water for growth,there has been deep soil desiccation in apple orchard fields which has in turn caused severe fluctuations in apple yield.Thus apple production bases in the region have faced a serious threat to sustainable,long-term development.To determine long-term variations in yield and soil water of rain-fed apple orchards of different planting densities in semi-humid climate tableland and gully-land regions of the Loess Plateau,apple yield and the 0 15 m layer soil moisture dynamics in apple orchards of 6 different planting densities at Baoji in 1965—2009 were quantitatively simulated and analyzed using the WinEPIC model.From planting densities of D1(2 m × 3 m),D2(2 m × 4 m),D3(2.5 m × 4 m),D4(3 m × 4 m),D5(4 m × 4 m) and D6(4 m × 5 m),and planting years of 1 45 years,the study determined the optimum planting density and cultivation period of rain-fed apple orchards.The results showed that for the 42 years(1968—2009) of apple production,yields of apple orchards of different planting densities initially increased gradually and then declined with severe fluctuations.The average apple yield of the first 21 years was significantly higher than that of the second 21 years in the 42 years of apple production.Apple yield improved with increasing planting density from D1 to D3 and some times D4,which was 833 1 000 plants per hectare.Apple yields of different planting densities changed positively with precipitation trend.With increasing planting density,soil available water capacity in the 0 15 m soil layer in apple orchards decreased,while formation rate of dried deep soil layer increased.Based on the trend and amplitude of variations in yield during 1968—2009,the number of drought stress day,available soil water capacity and soil moisture distribution,the optimum planting density was D3 or D4,and the optimum cultivation period of rain-fed apple orchards was 30 years at Baoji.","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"21 1","pages":"1377-1385"},"PeriodicalIF":0.0,"publicationDate":"2013-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69969373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of basal nitrogen fertilization time on nitrogen fertilizer use in flue-cured tobacco: Effect of basal nitrogen fertilization time on nitrogen fertilizer use in flue-cured tobacco","authors":"Zhi-Jian Xie, S. Tu, Q. Zhang, Changjiang Xu, Jin-ping Li","doi":"10.3724/SP.J.1011.2013.01328","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2013.01328","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"21 1","pages":"1328-1332"},"PeriodicalIF":0.0,"publicationDate":"2013-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69969464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of partial root-zone drought stress on root growth of maize: Effect of partial root-zone drought stress on root growth of maize","authors":"Rui-mei Li, T. Hu, X. Niu, S. Dai, Xudong Wang","doi":"10.3724/SP.J.1011.2013.01371","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2013.01371","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"21 1","pages":"1371-1376"},"PeriodicalIF":0.0,"publicationDate":"2013-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69969346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Differences in Cd-tolerance of rice and screening for Cd low-accumulation rice germplasm resources: Differences in Cd-tolerance of rice and screening for Cd low-accumulation rice germplasm resources","authors":"Xi-zhou Zhang, Hong-jiang Zhang, Li Tingxuan, Hai-ying Yu","doi":"10.3724/SP.J.1011.2013.01434","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2013.01434","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"21 1","pages":"1434-1440"},"PeriodicalIF":0.0,"publicationDate":"2013-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69969860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of potassium application rate on potassium absorption, distribution and yield of spring maize under different soil fertilities: Effect of potassium application rate on potassium absorption, distribution and yield of spring maize under different soil fertilities","authors":"Yun-Peng Hou, Lei Zhang, Li-li Kong, Cai Yin, Yu-Bo Qin, Qian Li, Jiadong Xie","doi":"10.3724/SP.J.1011.2013.01333","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2013.01333","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"21 1","pages":"1333-1339"},"PeriodicalIF":0.0,"publicationDate":"2013-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69969544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of spatio-temporal deficit irrigation and nitrogen supply on water and nitrogen use of tomato: Effect of spatio-temporal deficit irrigation and nitrogen supply on water and nitrogen use of tomato","authors":"Xiaogang Liu, Yan Zhang, Fucang Zhang, H. Cai, Zhi-jun Li, Qiliang Yang","doi":"10.3724/SP.J.1011.2013.01350","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2013.01350","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"21 1","pages":"1350-1357"},"PeriodicalIF":0.0,"publicationDate":"2013-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69969626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Competitiveness of intercropped maize cultivars in the Loess Plateau, China: Competitiveness of intercropped maize cultivars in the Loess Plateau, China","authors":"Xiao-Lin Wang, Suiqi Zhang","doi":"10.3724/SP.J.1011.2013.01403","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2013.01403","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"26 1","pages":"1403-1410"},"PeriodicalIF":0.0,"publicationDate":"2013-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69969649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of deep-plow and mulching during fallow period on soil water and wheat water use efficiency in dryland: Effect of deep-plow and mulching during fallow period on soil water and wheat water use efficiency in dryland","authors":"Feifei Wen, S. Min, Lian-Feng Deng, Weifeng Zhao, Z. Gao","doi":"10.3724/SP.J.1011.2013.01358","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2013.01358","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"21 1","pages":"1358-1364"},"PeriodicalIF":0.0,"publicationDate":"2013-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69969750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of low nitrogen application and soybean intercrop on soil greenhouse gas emission of sugarcane field: Effect of low nitrogen application and soybean intercrop on soil greenhouse gas emission of sugarcane field","authors":"Ying Zhang, Jianwu Wang, Lei Wang, Wenting Yang, Peng Wu, Yu Liu, Yi-ling Tang","doi":"10.3724/SP.J.1011.2013.01318","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2013.01318","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"21 1","pages":"1318-1327"},"PeriodicalIF":0.0,"publicationDate":"2013-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69968990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research progress on the impacts of low light intensity on rice growth and development: Research progress on the impacts of low light intensity on rice growth and development","authors":"Yanxiu Du, J. Xin, Jing Zhang, Jun-zhou Li, Hongzheng Sun, Quan-zhi Zhao","doi":"10.3724/SP.J.1011.2013.01307","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2013.01307","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"21 1","pages":"1307-1317"},"PeriodicalIF":0.0,"publicationDate":"2013-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69969209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}