...产指数||index number of agricultural production; index number of farmoutput 农业生产周期||agricultural production cycle 农业生产专业化||specializing agricultural production ..
Henoted thatdroughtandlessprecipitation, whichdo not always coincidewithcoldperiods, werealsosignificantfactors affectingtheagriculturalproduction in countrieslikeChina.