
The two demonstration fields for observation are located in Zilangping Village at an altitude of more than 1,600 meters and Yuntaihuang at an altitude of more than 1,700 meters in Changyang County. The favorable geographical advantages have contributed to the healthy development of local alpine vegetables.
Hubei Yishizhuang has a deep connection with alpine vegetables. In recent years, based on the good foundation of previous years, it has optimized the fertilization plan and created a full - nutrition package fertilizer model for vegetables, providing vegetable farmers with an efficient vegetable - planting experience featuring full nutrition, soil improvement, quality enhancement, less input, great labor - saving, and high returns, which has been vigorously promoted locally.
The demonstration fields of Chinese cabbage include two vegetable package fertilizer plans, namely:
Demonstration 1:
Apply 100 kg of Yishizhuang 35% (18 - 5 - 12) special fertilizer for vegetables and 80 kg of Yishizhuang bio - organic fertilizer per mu, with an input of 440 yuan per mu for fertilizers;
Demonstration 2:
Apply 100 kg of Yishizhuang 35% (18 - 5 - 12) special fertilizer for vegetables and 40 kg of Yishizhuang compound microbial fertilizer per mu, with an input of 380 yuan per mu for fertilizers;

The comparison used by Boss Xie, a demonstration household in Zilangping Village:
For conventional fertilization, apply 150 kg of a certain brand of 30% (15 - 6 - 9) compound fertilizer, 50 kg of phosphate fertilizer, 15 kg of potassium fertilizer, and 250 kg of chicken manure per mu, with an input of 610 yuan per mu for fertilizers.
After professional yield measurement, the yields per mu of the demonstration Chinese cabbages at Boss Xie's home increased by 288 kg and 720 kg respectively compared with the fields with conventional fertilization. Moreover, in the fields with conventional fertilization, some Chinese cabbages generally showed yellow and withered edges, which seriously affected the quality.
Yishizhuang vegetable package fertilizer
Conventional fertilization by farmers
The conventional fertilization in the demonstration field of Boss Wang in Yuntaihuang:
Apply 50 kg of a certain brand of 45% (15 - 15 - 15) compound fertilizer, 50 kg of a certain brand of 40% (15 - 5 - 20) compound fertilizer, and 300 kg of chicken manure per mu, with an input of 520 yuan per mu for fertilizers.
After yield measurement, the yields per mu of the two vegetable package fertilizers increased by 612 kg and 576 kg respectively compared with conventional fertilization.

After the field observation, Teacher Guo, a technical expert from Yishizhuang, popularized knowledge about vegetable nutrients and the correct way to choose organic fertilizers for vegetable farmers, and introduced in detail the application methods of vegetable package fertilizers.
The conference also specially invited Teacher Zhao Zhuqing, a post scientist of the National Bulk Vegetable Industry Technology System, to personally guide the acceptance work of the Chinese cabbage demonstration fields and supplemented and explained knowledge related to vegetable nutrition and pest management at the conference.
The vegetable farmers all said that they benefited a lot from this observation meeting and affirmed the excellent effect of Yishizhuang's vegetable package fertilizer in obtaining high - quality and high - yield Chinese cabbages while reducing input and pure nutrients.