中国生态农业学报2017，Vol.25Issue(2)：211-220,10.DOI:10.13930/j.cnki.cjea.160484
不同水稻品种混作养鸭对土壤养分动态的影响
Effect of rice varieties mixed-cropping with duck raising on nutrient dynamics in paddy soils
摘要
Abstract
Rice-duck farming system with different varieties of rice mixed-cropping could produce excellent ecological effects.However,it is for now largely unclear whether the synergy of the two farming systems (rice-duck farming and rice varieties mixed-cropping) could improve ecological conditions and production efficiency to have "1+1＞2" effect when concurrently implemented.Because of large-scale rice monoculture with high application of chemical pesticides and fertilizers,food and eco-environment security has increasingly worsened.To meet the demands for diverse tastes and high-quality organic rice,and to further explore the feasibility of biodiversity model in different rice varieties mixed-cropping systems and duck-rice co-culture,an innovative double rice vareties mixed-cropping along with duck raising was set up and studied.To test the effects of the farming systems on soil nutrient dynamics and rice quality,six different treatments were set up — including 'Shengbasimiao'rice variety mono-cropping with conventional farming practice (SC),'Shengbasimiao'rice variety mono-cropping with duck raising (SD),'Shengbasimiao'rice variety mono-cropping (CK1),mixed-cropping of rice varieties of'Shengbasimiao'and'Huajingxian 74'with conventional farming practice (MC),combined rice varieties of 'Shengbasimiao'and'Huajingxian 74'mixed-cropping and duck raising (MD),and rice varieties of'Shengbasimiao'and 'Huajingxian 74'mixed-cropping (CK2).After early and late rice planting in the first year,organic matter content of paddy soils under treatment MD was significantly higher than that under the other treatments.Although soil total nitrogen content in early rice planting under treatment MD was significantly lower than that under treatment MC,it was significantly higher than that under other treatments.After early and late rice planting,it was noted that soil alkali-hydrolyzable nitrogen content under treatment MD was significantly increased compared with that under the other treatments.The content of total phosphorus was significantly higher than that under the conventional cropping system after late rice harvest,and the average content of soil available phosphorus under rice varieties mixed-cropping systems was higher than that under rice variety mono-cropping systems.After rice cropping for one year,the contents of soil total potassium and available potassium under treatment MD were higher than those under the other treatments.Rice brown rate,milled rice rate,amylase content and gel consistency under MD were higher than those under the other treatments,the rate of chalky rice under MD was lower than that under the other treatments.In conclusion,the integrated farming system of rice varieties mixed-cropping and duck raising improved soil nutrients and rice grain quality.This study successfully tried a new farming system that can ensure ecological health,and high-quality and high-yield rice production.关键词
鸭稻共作/水稻品种混作/土壤养分动态/稻米品质Key words
Integrated rice-duck farming/Rice varieties mixed-cropping/Soil nutrient dynamics/Rice grain quality分类
农业科技引用本文复制引用
李妹娟,周念,章家恩,向慧敏,梁开明..不同水稻品种混作养鸭对土壤养分动态的影响[J].中国生态农业学报,2017,25(2):211-220,10.基金项目
广东省科技计划项目(2015B090903077,2016A020210094)、广州市科技计划项目(201604020062)和广东省现代农业产业技术体系创新团队建设项目(2016LM1100)资助Founded by the Science and Technology Project of Guangdong Province (2015B090903077,2016A020210094),the Science and Technology Project of Guangzhou (201604020062),and the Innovation Team Construction Project of Modern Agricultural Industry Technology System in Guangdong Province (2016LM1100) （2015B090903077,2016A020210094）
