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ANBAR JOURNAL OF AGRICULTURAL SCIENCES

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Effect of humic acid in some soil properties and growth of irrigated Squash with different saline water

    Yass K. AL-Hadithi and Maysam A. Al-Mashhadany

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2017, Volume 15, Issue 2, Pages 360-371
10.32649/aagrs.2017.143604

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Abstract

The study was conducted at the Faculty of Agriculture - Anbar University during the autumn season of 2016. The study included the effect of humic acid in some soil properties and the growth of squash with different saline water. The study included two salinity irrigation water and four levels of S0, S1, S2 and S3 salinity 1.1, 2, 3.8 and 5.6 dS m-1 and factor 2 addition of humic acid spray on plants at four levels F0, F1, F2 and F3 Spraying, 0.5, 1 and 1.5 g L-1. The results showed a decrease in dry weight and plant yield when irrigation with saline water, with a value of 0.00 at salinity of 5.6 dS m-1, Compared with fresh water use 16.72 g Plant -1 and -1.66 g Plant-1, Levels of humic acid spray increased significantly in dry weight as it increased from 8.74 g Plant -1, at the level of non-spraying to 12.44 g Plants -1, at the level of spraying 1.5 g L-1. Also increased the plant yield of 64.41 g. Plant -1 when compared to 111.06 g Plants -1 at the spraying level of 1.5 g L-1.
The salinity of irrigation water caused differences in the concentration of nitrogen, phosphorus and potassium in the vegetative parts of the zucchini. The concentration of nitrogen increased from 2.075 mg N kg-1 to 2.225 mg N kg-1 while the concentration of phosphorus decreased by increasing salinity levels from 0.38 to 0.28 mg P Kg-1 potassium concentration decreased from 3.36 to 2.65 mg Kg-1. The concentration of nitrogen, phosphorus and potassium increased in vegetative parts of the plant by increasing the levels of the humic acid spraying by 1.11, 0.29 and 2.48 mg kg -1 respectively on the spraying level 1.5 g L-1 compared to the comparison treatment 1.11, 0. 19 and 1.10 mg kg-1 respectively.
Increase the values of electrical conductivity in the soil after planting by increasing the salinity of irrigation water as it increased to 3.60 ds m-1 after it was 1.11. ds m-1 when irrigated with fresh water. However, the spraying of the humic acid caused the decrease in the values of the electrical conductivity as it decreased from 2.16 ds.m-1 when the comparison was compared to 2.16 ds.m-1 at the spraying level of 1.5 g L-1.
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(2017). Effect of humic acid in some soil properties and growth of irrigated Squash with different saline water. ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 15(2), 360-371. doi: 10.32649/aagrs.2017.143604
Yass K. AL-Hadithi and Maysam A. Al-Mashhadany. " Effect of humic acid in some soil properties and growth of irrigated Squash with different saline water". ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 15, 2, 2017, 360-371. doi: 10.32649/aagrs.2017.143604
(2017). ' Effect of humic acid in some soil properties and growth of irrigated Squash with different saline water', ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 15(2), pp. 360-371. doi: 10.32649/aagrs.2017.143604
Effect of humic acid in some soil properties and growth of irrigated Squash with different saline water. ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2017; 15(2): 360-371. doi: 10.32649/aagrs.2017.143604
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