http://reply.papertrans.cn/1/10/997/997-11.png
Submitted on: 30 August 1999.
Revised on: 20 September 1999.
Accepted on: 10 November 1999.
___________________AGRICULTURAL HISTORY---DUKE UNIV PRESS
Submitted on: 08 April 2018.
Revised on: 28 July 2018.
Accepted on: 12 August 2018.
___________________AGRICULTURAL HISTORY---DUKE UNIV PRESS
http://reply.papertrans.cn/1/10/997/997-14.png
Submitted on: 28 September 2009.
Revised on: 02 January 2010.
Accepted on: 27 February 2010.
___________________AGRICULTURAL HISTORY---DUKE UNIV PRESS
Submitted on: 27 October 2016.
Revised on: 17 November 2016.
Accepted on: 28 December 2016.
___________________AGRICULTURAL HISTORY---DUKE UNIV PRESS
Submitted on: 31 July 2012.
Revised on: 17 November 2012.
Accepted on: 05 January 2013.
___________________AGRICULTURAL HISTORY---DUKE UNIV PRESS
http://reply.papertrans.cn/1/10/997/997-18.png
Submitted on: 07 September 2007.
Revised on: 26 November 2007.
Accepted on: 30 December 2007.
___________________AGRICULTURAL HISTORY---DUKE UNIV PRESS
Submitted on: 30 December 2018.
Revised on: 27 February 2019.
Accepted on: 16 March 2019.
___________________AGRICULTURAL HISTORY---DUKE UNIV PRESS