Effects of Different Types of Potassium Fertilizers on Nutrient Uptake by Grapevine
Potassium (K) is the most important element for fruit quality improvement. This study aimed at determining the best K fertilizer type that can promote grape growth and nutrient uptake. Specifically, four types of K fertilizers (complex fertilizer, potassium nitrate, potassium sulfate, and potassium...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-04-01
|
| Series: | Horticulturae |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2311-7524/9/4/470 |
| _version_ | 1797605255854161920 |
|---|---|
| author | Wenjie Hu Jin Wang Qunxian Deng Dong Liang Hui Xia Lijin Lin Xiulan Lv |
| author_facet | Wenjie Hu Jin Wang Qunxian Deng Dong Liang Hui Xia Lijin Lin Xiulan Lv |
| author_sort | Wenjie Hu |
| collection | DOAJ |
| description | Potassium (K) is the most important element for fruit quality improvement. This study aimed at determining the best K fertilizer type that can promote grape growth and nutrient uptake. Specifically, four types of K fertilizers (complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate) were applied to grapevines grown in plastic pots, and then their effects on grape growth and nutrient uptake were explored. Results showed that the complex fertilizer and potassium nitrate treatments increased the biomass of the grapevine plants, whereas the other fertilizers had no significant effects on the biomass. Only the potassium nitrate treatment increased the contents of photosynthetic pigments in grapevine leaves. The complex fertilizer and potassium nitrate treatments increased the total N content in the grapevine plants to some extent, whereas the other fertilizer treatments decreased the total N content to some extent. It was also evident that all four K fertilizers increased the total P and K contents in the grapevine plants. Compared to the control, the complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate treatments increased the scion total P content by 20.18%, 9.77%, 12.52%, and 30.81%, respectively, and increased the scion total K content by 15.37%, 8.41%, 20.15%, and 26.48%, respectively. In addition, correlation and grey relational analyses showed that the rootstock stem total N content, rootstock root biomass, and soil alkali-hydrolyzable N concentration were the top three indicators most closely associated with the scion total N content, whereas the rootstock root total P content, soil available P concentration, and rootstock stem total P content were the top three indicators most closely associated with the scion total P content. Additionally, the rootstock root total K content, soil available K concentration, and rootstock root total P content were the top three indicators most closely associated with the scion total K content. Overall, the different K fertilizers can all promote the uptake of P and K by grapevine plants, and the potassium dihydrogen phosphate fertilizer is the best choice. |
| first_indexed | 2024-03-11T04:58:27Z |
| format | Article |
| id | doaj.art-ce8bdde803354d83ad8348c2ea46adc1 |
| institution | Directory Open Access Journal |
| issn | 2311-7524 |
| language | English |
| last_indexed | 2024-03-11T04:58:27Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Horticulturae |
| spelling | doaj.art-ce8bdde803354d83ad8348c2ea46adc12023-11-17T19:29:11ZengMDPI AGHorticulturae2311-75242023-04-019447010.3390/horticulturae9040470Effects of Different Types of Potassium Fertilizers on Nutrient Uptake by GrapevineWenjie Hu0Jin Wang1Qunxian Deng2Dong Liang3Hui Xia4Lijin Lin5Xiulan Lv6Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, ChinaInstitute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaInstitute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, ChinaInstitute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, ChinaInstitute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, ChinaInstitute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, ChinaPotassium (K) is the most important element for fruit quality improvement. This study aimed at determining the best K fertilizer type that can promote grape growth and nutrient uptake. Specifically, four types of K fertilizers (complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate) were applied to grapevines grown in plastic pots, and then their effects on grape growth and nutrient uptake were explored. Results showed that the complex fertilizer and potassium nitrate treatments increased the biomass of the grapevine plants, whereas the other fertilizers had no significant effects on the biomass. Only the potassium nitrate treatment increased the contents of photosynthetic pigments in grapevine leaves. The complex fertilizer and potassium nitrate treatments increased the total N content in the grapevine plants to some extent, whereas the other fertilizer treatments decreased the total N content to some extent. It was also evident that all four K fertilizers increased the total P and K contents in the grapevine plants. Compared to the control, the complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate treatments increased the scion total P content by 20.18%, 9.77%, 12.52%, and 30.81%, respectively, and increased the scion total K content by 15.37%, 8.41%, 20.15%, and 26.48%, respectively. In addition, correlation and grey relational analyses showed that the rootstock stem total N content, rootstock root biomass, and soil alkali-hydrolyzable N concentration were the top three indicators most closely associated with the scion total N content, whereas the rootstock root total P content, soil available P concentration, and rootstock stem total P content were the top three indicators most closely associated with the scion total P content. Additionally, the rootstock root total K content, soil available K concentration, and rootstock root total P content were the top three indicators most closely associated with the scion total K content. Overall, the different K fertilizers can all promote the uptake of P and K by grapevine plants, and the potassium dihydrogen phosphate fertilizer is the best choice.https://www.mdpi.com/2311-7524/9/4/470grapenutrient absorptiongrowthpotassium fertilizerphysiology |
| spellingShingle | Wenjie Hu Jin Wang Qunxian Deng Dong Liang Hui Xia Lijin Lin Xiulan Lv Effects of Different Types of Potassium Fertilizers on Nutrient Uptake by Grapevine Horticulturae grape nutrient absorption growth potassium fertilizer physiology |
| title | Effects of Different Types of Potassium Fertilizers on Nutrient Uptake by Grapevine |
| title_full | Effects of Different Types of Potassium Fertilizers on Nutrient Uptake by Grapevine |
| title_fullStr | Effects of Different Types of Potassium Fertilizers on Nutrient Uptake by Grapevine |
| title_full_unstemmed | Effects of Different Types of Potassium Fertilizers on Nutrient Uptake by Grapevine |
| title_short | Effects of Different Types of Potassium Fertilizers on Nutrient Uptake by Grapevine |
| title_sort | effects of different types of potassium fertilizers on nutrient uptake by grapevine |
| topic | grape nutrient absorption growth potassium fertilizer physiology |
| url | https://www.mdpi.com/2311-7524/9/4/470 |
| work_keys_str_mv | AT wenjiehu effectsofdifferenttypesofpotassiumfertilizersonnutrientuptakebygrapevine AT jinwang effectsofdifferenttypesofpotassiumfertilizersonnutrientuptakebygrapevine AT qunxiandeng effectsofdifferenttypesofpotassiumfertilizersonnutrientuptakebygrapevine AT dongliang effectsofdifferenttypesofpotassiumfertilizersonnutrientuptakebygrapevine AT huixia effectsofdifferenttypesofpotassiumfertilizersonnutrientuptakebygrapevine AT lijinlin effectsofdifferenttypesofpotassiumfertilizersonnutrientuptakebygrapevine AT xiulanlv effectsofdifferenttypesofpotassiumfertilizersonnutrientuptakebygrapevine |