[Zhang Jian's views on agricultural development].
Jiang
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D000383:Agriculture / Q000191:economics / Q000193:education / Q000266:history; D002681:China / Q000208:ethnology; D003247:Conservation of Natural Resources / Q000191:economics / Q000266:history; D018556:Crops, Agricultural / Q000191:economics / Q000266:history; D003906:Developing Countries / Q000191:economics / Q000266:history; D004777:Environment; D006076:Government / Q000266:history; D049673:History, 20th Century; D011639:Public Opinion; D012106:Research / Q000191:economics / Q000193:education / Q000266:history; D012423:Rural Health / Q000266:history; D012424:Rural Population / Q000266:history; D012586:Science / Q000191:economics / Q000193:education / Q000266:history; D012922:Social Change / Q000266:history; D012959:Socioeconomic Factors