Effect of Humic Acid on Morphology, Fluorescence, and Nutrient Uptake of Spring-Sown Potato Crop Under Saline Sandy Loam Soil.

Santana In the present study, the individual effects of humic acid application rates and periods were found to be highly significant ( p ≤ 0.01) for plant height, number of stems plant −1 , number of branches plant −1 , number of leaves plant −1 , and leaf area index (Table S1 ).

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The above morphological traits showed an increasing trend with an increase in humic acid application rates (Figures 3(a) , 3(b) , 3(c) , 3(d) , and 3(e) ).

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