Lingwu Changzao is a geographical indication protected product. Lingwu Changzao is a geographical indication certification trademark. Lingwu jujube is an agricultural product with geographical indication.

Lingwu Changzao, a unique variety in Lingwu City, Ningxia Hui Autonomous Region, has a long history of cultivation and excellent varieties. The fresh fruit produced is delicious, crispy in texture, rich in juice, white-green flesh, edible and nutritious. High value.

Lingwu Changzao, also known as "Ma Ya Zao", is an excellent local variety with strong tree vigor, upright posture, strong branching ability, and easy germination of jujube heads. The fruit is medium to large, oblong in shape. The average fruit weight is 18.1g, the maximum fruit weight is 26.8g, and the fruit stem is long. The stem depression is deep and wide, and the fruit shoulder is flat. The peel is purple-red, and the fruit spots are reddish-brown and not very obvious. The fruit has thin skin, green and white flesh, dense and crisp texture, rich juice, sweet and sour taste, and extremely high quality. The sugar content of fresh dates is 30%, the acid content is 0.25%, the edible rate is 95.5%, and the drying rate is 37.2%. This variety has strong cold resistance, salt and alkali tolerance, likes water and fertilizer, and its fruit will crack slightly when it rains. It is an excellent variety for both fresh eating and processing. It is most suitable for raw food, and the processed wine dates have a unique flavor. It is a key promotion variety in Ningxia Yellow River Irrigation Area. (Lingwu)

In 2006, Lingwu City was approved by the State Forestry Administration as the "Hometown of Lingwu Long Zao in China", and Lingwu Long Zao was approved by the General Administration of Quality Supervision, Inspection and Quarantine as a "Protected Geographical Indication Product" "; In 2007, Lingwu City was elected as the first rotating chairman unit of China's main jujube production area cooperation group. The second and third Lingwu Long Date Festival were successfully held in Shanghai, Shenzhen and other places. In 2008, the "Lingdan" brand Lingwu Changzao was rated as "China's Famous Brand Agricultural Products" by the Ministry of Agriculture. Seven product brands including "Lingdan Brand" and "Lingwu Red" have passed ISO9001:2000 international quality management system certification and obtained Grade A certification from the National Green Food Development Center. The "Lingwu" brand Lingwu jujube won the Famous Product Award at the China Beijing Sand Industry Expo and the Silver Award at the China Shanghai Forestry Expo in 2003 and 2004 respectively. The 20,000-acre Lingwu jujube green food production base has obtained origin certification; The “Ten Thousand Mu Lingwu Long Zao National Standardized Demonstration Park”, the “Ningxia Lingwu Long Zao Modern Agriculture Demonstration Park” and the “Lingwu Long Zao Organic Food Production Demonstration Site” have been established.