Luo Minggang checks the pesticide residue in tea leaves at Dalian Village of Tuxi Township in Fenggang County of Zunyi City, southwest China's Guizhou Province, June 18, 2018. Luo Minggang, a farmer in Dalian Village, established a tea cooperative with some villagers in 2007 as Fengyang ramped up efforts to develop tea industry as a pillar industry. After a few years of exploration and hard work, Luo became an expert in tea leaves caring, picking and processing and won many awards in national tea contests. Now the tea cooperative has attracted more than 200 people to join and has been equipped with over 20 processing facilities, with its tea garden covering an area of about 400 mu (26.67 hectares). (Xinhua/Luo Xinghan)

Luo Minggang processes green tea at Dalian Village of Tuxi Township in Fenggang County of Zunyi City, southwest China's Guizhou Province, May 3, 2019. Luo Minggang, a farmer in Dalian Village, established a tea cooperative with some villagers in 2007 as Fengyang ramped up efforts to develop tea industry as a pillar industry. After a few years of exploration and hard work, Luo became an expert in tea leaves caring, picking and processing and won many awards in national tea contests. Now the tea cooperative has attracted more than 200 people to join and has been equipped with over 20 processing facilities, with its tea garden covering an area of about 400 mu (26.67 hectares). (Xinhua/Luo Xinghan)

Luo Minggang (R) processes black tea at Dalian Village of Tuxi Township in Fenggang County of Zunyi City, southwest China's Guizhou Province, May 3, 2019. Luo Minggang, a farmer in Dalian Village, established a tea cooperative with some villagers in 2007 as Fengyang ramped up efforts to develop tea industry as a pillar industry. After a few years of exploration and hard work, Luo became an expert in tea leaves caring, picking and processing and won many awards in national tea contests. Now the tea cooperative has attracted more than 200 people to join and has been equipped with over 20 processing facilities, with its tea garden covering an area of about 400 mu (26.67 hectares). (Xinhua/Luo Xinghan)

Luo Minggang airs tea leaves at Dalian Village of Tuxi Township in Fenggang County of Zunyi City, southwest China's Guizhou Province, April 5, 2019. Luo Minggang, a farmer in Dalian Village, established a tea cooperative with some villagers in 2007 as Fengyang ramped up efforts to develop tea industry as a pillar industry. After a few years of exploration and hard work, Luo became an expert in tea leaves caring, picking and processing and won many awards in national tea contests. Now the tea cooperative has attracted more than 200 people to join and has been equipped with over 20 processing facilities, with its tea garden covering an area of about 400 mu (26.67 hectares). (Xinhua/Luo Xinghan)

Luo Minggang checks a pest-killing lamp at a tea garden in Dalian Village of Tuxi Township in Fenggang County of Zunyi City, southwest China's Guizhou Province, May 3, 2019. Luo Minggang, a farmer in Dalian Village, established a tea cooperative with some villagers in 2007 as Fengyang ramped up efforts to develop tea industry as a pillar industry. After a few years of exploration and hard work, Luo became an expert in tea leaves caring, picking and processing and won many awards in national tea contests. Now the tea cooperative has attracted more than 200 people to join and has been equipped with over 20 processing facilities, with its tea garden covering an area of about 400 mu (26.67 hectares). (Xinhua/Luo Xinghan)

Luo Minggang mows at a tea garden in Dalian Village of Tuxi Township in Fenggang County of Zunyi City, southwest China's Guizhou Province, May 3, 2019. Luo Minggang, a farmer in Dalian Village, established a tea cooperative with some villagers in 2007 as Fengyang ramped up efforts to develop tea industry as a pillar industry. After a few years of exploration and hard work, Luo became an expert in tea leaves caring, picking and processing and won many awards in national tea contests. Now the tea cooperative has attracted more than 200 people to join and has been equipped with over 20 processing facilities, with its tea garden covering an area of about 400 mu (26.67 hectares). (Xinhua/Luo Xinghan)

Luo Minggang conveys packed tea leaves at Dalian Village of Tuxi Township in Fenggang County of Zunyi City, southwest China's Guizhou Province, May 3, 2019. Luo Minggang, a farmer in Dalian Village, established a tea cooperative with some villagers in 2007 as Fengyang ramped up efforts to develop tea industry as a pillar industry. After a few years of exploration and hard work, Luo became an expert in tea leaves caring, picking and processing and won many awards in national tea contests. Now the tea cooperative has attracted more than 200 people to join and has been equipped with over 20 processing facilities, with its tea garden covering an area of about 400 mu (26.67 hectares). (Xinhua/Luo Xinghan)

Luo Minggang demonstrates certificates of honor he won in recent years at the office of his cooperative in Dalian Village of Tuxi Township in Fenggang County of Zunyi City, southwest China's Guizhou Province, April 6, 2019. Luo Minggang, a farmer in Dalian Village, established a tea cooperative with some villagers in 2007 as Fengyang ramped up efforts to develop tea industry as a pillar industry. After a few years of exploration and hard work, Luo became an expert in tea leaves caring, picking and processing and won many awards in national tea contests. Now the tea cooperative has attracted more than 200 people to join and has been equipped with over 20 processing facilities, with its tea garden covering an area of about 400 mu (26.67 hectares). (Xinhua/Luo Xinghan)

Luo Minggang picks tea leaves at a tea garden in Dalian Village of Tuxi Township in Fenggang County of Zunyi City, southwest China's Guizhou Province, May 3, 2019. Luo Minggang, a farmer in Dalian Village, established a tea cooperative with some villagers in 2007 as Fengyang ramped up efforts to develop tea industry as a pillar industry. After a few years of exploration and hard work, Luo became an expert in tea leaves caring, picking and processing and won many awards in national tea contests. Now the tea cooperative has attracted more than 200 people to join and has been equipped with over 20 processing facilities, with its tea garden covering an area of about 400 mu (26.67 hectares). (Xinhua/Luo Xinghan)

Luo Minggang processes tea leaves at Dalian Village of Tuxi Township in Fenggang County of Zunyi City, southwest China's Guizhou Province, April 5, 2019. Luo Minggang, a farmer in Dalian Village, established a tea cooperative with some villagers in 2007 as Fengyang ramped up efforts to develop tea industry as a pillar industry. After a few years of exploration and hard work, Luo became an expert in tea leaves caring, picking and processing and won many awards in national tea contests. Now the tea cooperative has attracted more than 200 people to join and has been equipped with over 20 processing facilities, with its tea garden covering an area of about 400 mu (26.67 hectares). (Xinhua/Luo Xinghan)

Luo Minggang (L) applies fertilizers at a tea garden in Dalian Village of Tuxi Township in Fenggang County of Zunyi City, southwest China's Guizhou Province, Jan. 3, 2016. Luo Minggang, a farmer in Dalian Village, established a tea cooperative with some villagers in 2007 as Fengyang ramped up efforts to develop tea industry as a pillar industry. After a few years of exploration and hard work, Luo became an expert in tea leaves caring, picking and processing and won many awards in national tea contests. Now the tea cooperative has attracted more than 200 people to join and has been equipped with over 20 processing facilities, with its tea garden covering an area of about 400 mu (26.67 hectares). (Xinhua/Luo Xinghan)

Luo Minggang sorts black tea at Dalian Village of Tuxi Township in Fenggang County of Zunyi City, southwest China's Guizhou Province, May 3, 2019. Luo Minggang, a farmer in Dalian Village, established a tea cooperative with some villagers in 2007 as Fengyang ramped up efforts to develop tea industry as a pillar industry. After a few years of exploration and hard work, Luo became an expert in tea leaves caring, picking and processing and won many awards in national tea contests. Now the tea cooperative has attracted more than 200 people to join and has been equipped with over 20 processing facilities, with its tea garden covering an area of about 400 mu (26.67 hectares). (Xinhua/Luo Xinghan)

Luo Minggang processes green tea at Dalian Village of Tuxi Township in Fenggang County of Zunyi City, southwest China's Guizhou Province, May 3, 2019. Luo Minggang, a farmer in Dalian Village, established a tea cooperative with some villagers in 2007 as Fengyang ramped up efforts to develop tea industry as a pillar industry. After a few years of exploration and hard work, Luo became an expert in tea leaves caring, picking and processing and won many awards in national tea contests. Now the tea cooperative has attracted more than 200 people to join and has been equipped with over 20 processing facilities, with its tea garden covering an area of about 400 mu (26.67 hectares). (Xinhua/Luo Xinghan)