Improved Corn Yields When Humic Acid Extracted from Composted Manure Is Applied to Acid Soils with Phosphorus Fertilizer
Most corn planted on tropical acidic soils suffers substantial yield loss caused by low crop phosphorus (P) uptake. Humic acid is recommended to increase crop P uptake since it is capable of competing with P to be bound to soil adsorption complexes. Humic acid extracted from composted manure (MHA) i...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Applied and Environmental Soil Science |
| Online Access: | http://dx.doi.org/10.1155/2021/8838420 |
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| author | Benito H. Purwanto Putri Wulandari Endang Sulistyaningsih Sri N. H. Utami Suci Handayani |
| author_facet | Benito H. Purwanto Putri Wulandari Endang Sulistyaningsih Sri N. H. Utami Suci Handayani |
| author_sort | Benito H. Purwanto |
| collection | DOAJ |
| description | Most corn planted on tropical acidic soils suffers substantial yield loss caused by low crop phosphorus (P) uptake. Humic acid is recommended to increase crop P uptake since it is capable of competing with P to be bound to soil adsorption complexes. Humic acid extracted from composted manure (MHA) is a good alternative to humic acid because it is more reactive and has a higher complexation ability compared with leonardite. Therefore, the effectiveness of soil-applied MHA combined with P was evaluated to improve corn yields in acidic soils from the aspect of crop nutrient uptake efficiency and crop physiological performance. Two high-yielding corn cultivars that are highly accepted by Indonesian farmers and resistant to downy mildew disease were subjected to five different types of MHA and P combinations. The amount of P fertilizer was equivalent to 120 mg P2O5 kg−1 soil. The H10P1 produced the most significant result p<0.05 in terms of total crop dry weight, grain dry weight, and corn yield. The highest efficiency for P uptake in the leaves and grains was found with H10P1 and H5P1, respectively. Although chlorophyll content was not substantially improved, the stomatal apertures 7 weeks after planting (WAP) were significantly increased p<0.05 with H10P1 and H15P1. The photosynthetic rate and nitrate reductase (NR) activity at 10 WAP were significantly increased p<0.05 with H5P1 and H10P1, respectively. The results clearly indicated significant increases in the efficiency of crop P uptake and physiological performance for stomatal aperture, photosynthetic rate, and NR activity can highly contribute to higher corn yields. |
| format | Article |
| id | doaj-art-8a6ff2b5a8a645ea859efcc2a29849b7 |
| institution | Kabale University |
| issn | 1687-7667 1687-7675 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
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| series | Applied and Environmental Soil Science |
| spelling | doaj-art-8a6ff2b5a8a645ea859efcc2a29849b72025-02-03T06:47:02ZengWileyApplied and Environmental Soil Science1687-76671687-76752021-01-01202110.1155/2021/88384208838420Improved Corn Yields When Humic Acid Extracted from Composted Manure Is Applied to Acid Soils with Phosphorus FertilizerBenito H. Purwanto0Putri Wulandari1Endang Sulistyaningsih2Sri N. H. Utami3Suci Handayani4Department of Soil Science, Faculty of Agriculture, Universitas Gadjah Mada, Bulaksumur, Yogyakarta 55281, IndonesiaDepartment of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada, Bulaksumur, Yogyakarta 55281, IndonesiaDepartment of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada, Bulaksumur, Yogyakarta 55281, IndonesiaDepartment of Soil Science, Faculty of Agriculture, Universitas Gadjah Mada, Bulaksumur, Yogyakarta 55281, IndonesiaDepartment of Soil Science, Faculty of Agriculture, Universitas Gadjah Mada, Bulaksumur, Yogyakarta 55281, IndonesiaMost corn planted on tropical acidic soils suffers substantial yield loss caused by low crop phosphorus (P) uptake. Humic acid is recommended to increase crop P uptake since it is capable of competing with P to be bound to soil adsorption complexes. Humic acid extracted from composted manure (MHA) is a good alternative to humic acid because it is more reactive and has a higher complexation ability compared with leonardite. Therefore, the effectiveness of soil-applied MHA combined with P was evaluated to improve corn yields in acidic soils from the aspect of crop nutrient uptake efficiency and crop physiological performance. Two high-yielding corn cultivars that are highly accepted by Indonesian farmers and resistant to downy mildew disease were subjected to five different types of MHA and P combinations. The amount of P fertilizer was equivalent to 120 mg P2O5 kg−1 soil. The H10P1 produced the most significant result p<0.05 in terms of total crop dry weight, grain dry weight, and corn yield. The highest efficiency for P uptake in the leaves and grains was found with H10P1 and H5P1, respectively. Although chlorophyll content was not substantially improved, the stomatal apertures 7 weeks after planting (WAP) were significantly increased p<0.05 with H10P1 and H15P1. The photosynthetic rate and nitrate reductase (NR) activity at 10 WAP were significantly increased p<0.05 with H5P1 and H10P1, respectively. The results clearly indicated significant increases in the efficiency of crop P uptake and physiological performance for stomatal aperture, photosynthetic rate, and NR activity can highly contribute to higher corn yields.http://dx.doi.org/10.1155/2021/8838420 |
| spellingShingle | Benito H. Purwanto Putri Wulandari Endang Sulistyaningsih Sri N. H. Utami Suci Handayani Improved Corn Yields When Humic Acid Extracted from Composted Manure Is Applied to Acid Soils with Phosphorus Fertilizer Applied and Environmental Soil Science |
| title | Improved Corn Yields When Humic Acid Extracted from Composted Manure Is Applied to Acid Soils with Phosphorus Fertilizer |
| title_full | Improved Corn Yields When Humic Acid Extracted from Composted Manure Is Applied to Acid Soils with Phosphorus Fertilizer |
| title_fullStr | Improved Corn Yields When Humic Acid Extracted from Composted Manure Is Applied to Acid Soils with Phosphorus Fertilizer |
| title_full_unstemmed | Improved Corn Yields When Humic Acid Extracted from Composted Manure Is Applied to Acid Soils with Phosphorus Fertilizer |
| title_short | Improved Corn Yields When Humic Acid Extracted from Composted Manure Is Applied to Acid Soils with Phosphorus Fertilizer |
| title_sort | improved corn yields when humic acid extracted from composted manure is applied to acid soils with phosphorus fertilizer |
| url | http://dx.doi.org/10.1155/2021/8838420 |
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