Abstract
The present study was conducted during the 2016-2017 at University of Sulaimani, College of Agricultural Sciences. This investigation aimed to study the effect of humic acid (foliar application) with three levels; 2.5, 3.5 and 4.5 ml/L and three levels of (soil application) ; 1.5, 2.5 and 3.5 ml/L, compared with the control (spray with water only) on growth and yield components of broccoli (Brassica oleracea L. var. corato). After 2 weeks from transplanting, the humic acid was added four times to the plants. The experimental design was used is Random Complete Block Design (RCBD), with three replicates was applied and the means compared according to Dunken at 0.05 level. The obtained results showed that soil application in the rate of (1.5 ml/L) achieved the highest results of Plant height (53 cm), fresh weight of main head (403.5 gm) and total yield (50 ton/ha). On the other hand, the highest value of the main head diameter was obtained by foliar application of 2.5 ml/L. In addition, the highest value of TSS was recorded when humic acid as a foliar spray at a rate of 3.5 ml/L, while the amount of NPK were not significantly affected by applications of different doses of humic acid. These results imply that soil application of humic acid at the rate of 1.5 ml/L could be recommended to use in the agricultural field for producing optimum yields.
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Claims 7
Claim · model-written summary
Soil humic acid at 1.5 ml/L produced the highest plant height of 53 cm.
- Taxon
- broccoli
Brassica oleracea var. italicat0 - Treatment
- soil application in the rate of (1.5 ml/L)e0
- Outcome
- Plant heighte0
- Direction
- higheste0
- Value
- 53 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil application in the rate of (1.5 ml/L) achieved the highest results of Plant height (53 cm)”
t0“Growth and Yield of Broccoli (Brassica oleracea L. Var. Corato)”
Claim · model-written summary
Soil humic acid at 1.5 ml/L produced the highest main head fresh weight of 403.5 gm.
- Taxon
- broccoliBrassica oleracea var. italicat0
- Treatment
- soil application in the rate of (1.5 ml/L)e0
- Outcome
- fresh weight of main heade0
- Direction
- higheste0
- Value
- 403.5 gme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil application in the rate of (1.5 ml/L) achieved the highest results of Plant height (53 cm), fresh weight of main head (403.5 gm)”
t0“Growth and Yield of Broccoli (Brassica oleracea L. Var. Corato)”
Claim · model-written summary
Soil humic acid at 1.5 ml/L produced the highest total yield of 50 ton/ha.
- Taxon
- broccoliBrassica oleracea var. italicat0
- Treatment
- soil application in the rate of (1.5 ml/L)e0
- Outcome
- total yielde0
- Direction
- higheste0
- Value
- 50 ton/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil application in the rate of (1.5 ml/L) achieved the highest results of Plant height (53 cm), fresh weight of main head (403.5 gm) and total yield (50 ton/ha)”
t0“Growth and Yield of Broccoli (Brassica oleracea L. Var. Corato)”
Claim · model-written summary
Foliar humic acid at 2.5 ml/L gave the highest main head diameter.
- Taxon
- broccoliBrassica oleracea var. italicat0
- Treatment
- foliar application of 2.5 ml/Le0
- Outcome
- main head diametere0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest value of the main head diameter was obtained by foliar application of 2.5 ml/L”
t0“Growth and Yield of Broccoli (Brassica oleracea L. Var. Corato)”
Claim · model-written summary
Foliar humic acid at 3.5 ml/L gave the highest TSS value.
- Taxon
- broccoliBrassica oleracea var. italicat0
- Treatment
- humic acid as a foliar spray at a rate of 3.5 ml/Le0
- Outcome
- TSSe0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest value of TSS was recorded when humic acid as a foliar spray at a rate of 3.5 ml/L”
t0“Growth and Yield of Broccoli (Brassica oleracea L. Var. Corato)”
Claim · model-written summary
Different humic acid doses did not significantly affect NPK amount.
- Taxon
- broccoliBrassica oleracea var. italicat0
- Treatment
- applications of different doses of humic acide0
- Outcome
- amount of NPKe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the amount of NPK were not significantly affected by applications of different doses of humic acid”
t0“Growth and Yield of Broccoli (Brassica oleracea L. Var. Corato)”
Claim · model-written summary
The authors recommend soil humic acid at 1.5 ml/L for optimum yields.
- Taxon
- broccoliBrassica oleracea var. italicat0
- Treatment
- soil application of humic acid at the rate of 1.5 ml/Le0
- Outcome
- producing optimum yieldse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil application of humic acid at the rate of 1.5 ml/L could be recommended to use in the agricultural field for producing optimum yields”
t0“Growth and Yield of Broccoli (Brassica oleracea L. Var. Corato)”
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