In order to increase multiple cropping index and achieve increase of yield and income for farmers,four crops a year demonstrations of efficient planting test were carried out in Xinzhou town of Zunyi county from 2004 to 2008 involving seedless watermelon-premature and heat resistant cabbage-normal heat resistant cabbage-potherb mustard.

Supplements and Notes to the English Version of The Four Books in the Transcendentalist Dial;