IH6XWMMC

3719

3 mai 2021 16:10

3 mai 2021 16:11

There is a preference for organic vegetables, including Chinese potato [Plectranthus rotundifolius (Poir.) Spreng. or Solenostemon rotundifolius (Poir.) J.K. Morton], due to concerns regarding plant health, safe food, and sustainable yields. However, organic technologies in this crop is lacking. Comparison of crop growth, biomass production, yield, quality, soil properties, nutrient uptake, and cost-benefit analysis between organic and conventional systems in Chinese potato has not been thoroughly investigated. Field experiments were done from 2014 to 2016 at the Indian Council of Agricultural Research-Central Tuber Crops Research Institute, Thiruvananthapuram, India, to assess differences due to conventional (I1); integration of animal manure, chemical fertilizers and plant growth-promoting rhizobacteria (I2), and organic treatments, traditional farmer practice comprised animal manure @ 15 t·ha−1 and ash @ 2 t·ha−1 (O1); use of animal manure @ 10 t·ha−1, green manure @ 10–15 t·ha−1, neem cake @ 1 t·ha−1 and ash @ 2 t·ha−1 (O2), and organic+plant growth-promoting rhizobacteria as above, but instead of ash the bacterium Azospirillum, and a P and K solubilizer @ 3 kg∙ha−1 (O3) were examined for effects on productivity, tuber quality, soil productivity, and economics of production of Chinese potato. Organic management improved biomass partitioning to tubers, harvest index, higher pH (+1.14, +0.23 unit), organic C (+15%, +21.33%), available N and P, tuber K, P and Zn uptake over conventional and integrated practices, respectively. Tuber yield, gross income (avg. US$7777.13∙ha−1), and profit (avg. US$5721.80∙ha−1), were unaffected. Organic production may be an alternative for Chinese potato with responses equal to conventional production while possibly delivering improved soil health.

None

• AB - Spécifique
• FREDO aspect technico-économique
• FREDO biologie et travail du sol
• FREDO qualité des produits
• FREDO santé végétale
• FREDO étude des variétés
• GEO Inde
• pomme de terre
• potato

• plectranthus rotundifolius
• bio-rationale
• productivity
• soil properties
• tuber quality

International Journal of Vegetable Science

0

1-19

April 21, 2021

21 avril 2021

10.1080/19315260.2021.1907829 Le DOI est une URL unique de référencement d'une publication. Il est donc plus fiable et permanent qu'une URL classique

1931-5260 L’ISSN est un code de 8 chiffres servant à identifier les journaux, revues, magazines, périodiques de toute nature et sur tous supports, papier comme électronique.