Effect of nitrogen regulation on berry quality and flavonoids during veraison stage

Hui, Yueran; Wang, Jing; Jiang, Tingting; Ma, Tinghui; Wang, Rui

doi:10.1002/fsn3.2503

Cited by 7 publications

(1 citation statement)

References 30 publications

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“…This may be because of the effects of ammonium sulfate in soil pH, nitrogen form (NH 4 + ), and/or sulfur present in the fertilizer. In different crops, an increase in TPC due to NH 4 + addition was reported [ 39 , 40 , 41 , 42 , 43 ]. In mustard, sulfur increased TPC [ 16 ].…”

Section: Resultsmentioning

confidence: 99%

Influence of Nitrogen Sources Applied by Fertigation to an Enriched Soil with Organic Compost on Growth, Mineral Nutrition, and Phytochemicals Content of Coriander (Coriandrum sativum L.) in Two Successive Harvests

Machado

Alves-Pereira

Faty

et al. 2021

Plants

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The aim of the present study was to evaluate the effects of nitrogen source applied by fertigation to an enriched soil with organic compost on plant growth, mineral nutrition, and phytochemical contents in two successive harvests in coriander. The treatments were as follows: unfertilized soil, soil enriched with organic compost, and soil enriched with organic compost to which 60 kg N ha−1 as ammonium nitrate and as ammonium sulfate applied by fertigation were added. Ammonium nitrate addition allowed to obtain a high total fresh yield (3.6 kg m−2) with a low inorganic nitrogen input. Ammonium nitrate increased plant shoot dry weight; fresh yield; and shoot N, K, and Ca uptake in the first harvest. Ammonium nitrate relative to organic compost and to ammonium sulfate increased fresh yield by approximately 57 and 25%, respectively. However, ammonium sulfate in the first harvest greatly increased shoot total phenols, from 137 mgGAE/100 g FW in ammonium nitrate to 280.4 mgGAE/100 g FW. Coriander’s fresh yield, in the second harvest, was unaffected by nitrogen addition. However, ammonium nitrate increased shoot total phenols and FRAP activity. Overall, the shoot phytochemical accumulation in the second harvest was lower than in the first. The combined application of ammonium nitrate and organic compost is a strategy to reduce inorganic nitrogen application.

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