Now days due to economic security, paddy-wheat rotation is prevalent in Punjab. This crop rotation has directly or indirectly caused a lot of ecological, economic and health problems. According to Indian Council of Medical Research, a healthy person should consume 300g vegetables, 40g pulses and negligible quanity of fruits per person per day.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/evaluation-nutritional-garden-model-farmers-fields
[2] http://admin.indiaenvironmentportal.org.in/category/author/pankaj-kumar
[3] http://admin.indiaenvironmentportal.org.in/category/author/kuldeep-singh
[4] http://admin.indiaenvironmentportal.org.in/category/journal/indian-journal-ecology
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/home-gardens
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/legumes
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vegetables
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/food-prices
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nutrition
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/farmers
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/women
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/punjab