Abstract
Organic melon production under greenhouse condition is widespread in South West of Morocco. However, Organic melon producers are facing serious problems in optimizing nitrogen supply to the crop under greenhouse conditions due to the lack of scientific data on nitrogen use efficiency (NUE). Knowing that for an average yield of 60 T/Ha, melon nitrogen requirements are about 400 kg/Ha. In order to investigate NUE for the most common organic fertilizers used by farmers as compared to a mineral fertilizer (Tm) (20-20-20), an experiment was conducted in Souss Massa region using a randomized complete bloc design with four replicates. Organic nitrogen was applied as compost (Tc): (2.5-3-2.5), (TNPK): Eveilorga (7-4-7), (TNP+K): Alter Orga NP+ Patenkali (8-12-0) + (0-0-30) and (TN+P+K): 10-0-0+ phosphate (0-18-0)+ Patenkali (0-0-30). Nitrogen use efficiency was evaluated on four different parameters: Agronomic efficiency (AE, yield increase per unit of N applied) and physiological efficiency (PE, yield increase per unit of N uptake). Results showed that the form of organic nitrogen applied to the crop has a significant impact on biomass, yield and nitrogen use efficiency. The average yield with organic fertilizers was about 32 T/Ha as compared to the mineral fertilizer (29 T/Ha). Within the organic treatments, a significant difference in yield, AE, and PE were observed. Keywords: Nitrogen use efficiency, Organic melon, Organic fertilizer, Agronomic efficiency
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Claims 7
Claim · model-written summary
Organic nitrogen form significantly affected melon biomass.
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Verbatim
e0“the form of organic nitrogen applied to the crop has a significant impact on biomass, yield and nitrogen use efficiency”
Claim · model-written summary
Organic nitrogen form significantly affected melon yield.
Not reportedTaxonComparatorDirection
Verbatim
e0“the form of organic nitrogen applied to the crop has a significant impact on biomass, yield and nitrogen use efficiency”
Claim · model-written summary
Organic nitrogen form significantly affected melon nitrogen use efficiency.
Not reportedTaxonComparatorDirection
Verbatim
e0“the form of organic nitrogen applied to the crop has a significant impact on biomass, yield and nitrogen use efficiency”
Claim · model-written summary
Organic fertilizer produced about 32 T/Ha melon yield, compared with 29 T/Ha under mineral fertilizer.
- Treatment
- organic fertilizerse0
- Outcome
- average yielde0
- Value
- 32 T/Hae0
- Qualifier
- 29 T/Hae0
- Comparator
- mineral fertilizere0
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e0“The average yield with organic fertilizers was about 32 T/Ha as compared to the mineral fertilizer (29 T/Ha).”
Claim · model-written summary
Organic treatments differed significantly in melon yield.
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Verbatim
e0“Within the organic treatments, a significant difference in yield, AE, and PE were observed.”
Claim · model-written summary
Organic treatments differed significantly in melon agronomic efficiency.
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Verbatim
e0“Within the organic treatments, a significant difference in yield, AE, and PE were observed.”
Claim · model-written summary
Organic treatments differed significantly in melon physiological efficiency.
Not reportedTaxonDirection
Verbatim
e0“Within the organic treatments, a significant difference in yield, AE, and PE were observed.”