{'fraction_non_alphanumeric': 0.02387774594078319, 'fraction_numerical': 0.0, 'mean_word_length': 6.227586206896552, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
The Production System Construction of Pollution-Free Vegetables

Along with social progress, economic development, and the improvement of living standards, quality and safety issues of the vegetables have been concerned increasingly. Pollution-free vegetables production has important ecological, economic, and social benefits. This article had described the key techniques of the pollution-free vegetables production, including planting environment selection, the varieties selection, cultivation management, fertilizers application, pests and diseases control, which could provide a reference for the development of pollution-free vegetables production in Hainan. According to the principles of sustainable development and basic requirements of green food, based on the status of pollution-free vegetables production, this study had summarized the problems in the production process of pollution-free vegetables and explored countermeasures to these problems, which can provide some ideas for the future development of pollution-free vegetables.