Nutrient accumulation and balances in soils of the new-established greenhouses
BAI Xin-lu;GAO Jia-jia;CHEN Zhu-jun;LEI Jin-fan;ZHOU Jian-bin;College of Resourse and Environment;Northwest A & F University / Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China;Ministry of Agriculture;Yangling Agriculture Technology Service Station;
Effects of super absorbent polymers on lettuce growth
LUO Hua;SONG Tao;LIU Hui;National Engineering Technology Research Center For Controlled Release Fertilizers;Shandong Kingenta Ecological Engineering Co. Ltd.;