N, P and K use efficiency and maize yield responses to fertilization modes and densities
Optimal planting density and proper fertilization method are important factors to improve maize yield and nutrient utilization. A two-year (2016 and 2017) field experiment was conducted with three plant densities (6.0, 7.5 and 9.0 plants m–2) and three fertilization modes (no fertilizer, 0F; one-off...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2021-01-01
|
| Series: | Journal of Integrative Agriculture |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311920632142 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849248327236845568 |
|---|---|
| author | Guang-hao LI Qian CHENG Long LI Da-lei LU Wei-ping LU |
| author_facet | Guang-hao LI Qian CHENG Long LI Da-lei LU Wei-ping LU |
| author_sort | Guang-hao LI |
| collection | DOAJ |
| description | Optimal planting density and proper fertilization method are important factors to improve maize yield and nutrient utilization. A two-year (2016 and 2017) field experiment was conducted with three plant densities (6.0, 7.5 and 9.0 plants m–2) and three fertilization modes (no fertilizer, 0F; one-off application of slow-released fertilizer, SF; twice application of conventional fertilizer, CF). Results indicated that the grain yields and N, P and K use efficiencies under SF with the optimal planting density (7.5 plants m–2) were the highest among all the treatments in 2016 and 2017. Compared with CF, SF could increase post-silking dry matter accumulation and promote N, P and K uptake at pre- and post-silking stages; this treatment increased grain N, P and K concentrations and resulted in high N, P and K use efficiencies. Nutrient (N, P and K) absorption efficiencies and partial productivity, and nutrient (N and P) recovery efficiency in SF treatment were significantly higher than those in CF treatments under the planting density of 7.5 plants m–2. Under both SF and CF conditions, the grain yield, total N accumulation and nutrient use efficiencies initially increased, peaked at planting density of 7.5 plants m–2, and then decreased with increasing plant density. Based on the yield and nutrient use efficiency in two years, plant density of 7.5 plants m–2 with SF can improve both the grain yield and N, P and K use efficiency of spring maize in Jiangsu Province, China. |
| format | Article |
| id | doaj-art-ea6b9db7dd9c4105bf8ad96e095c069b |
| institution | Kabale University |
| issn | 2095-3119 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj-art-ea6b9db7dd9c4105bf8ad96e095c069b2025-08-20T03:57:54ZengKeAi Communications Co., Ltd.Journal of Integrative Agriculture2095-31192021-01-01201788610.1016/S2095-3119(20)63214-2N, P and K use efficiency and maize yield responses to fertilization modes and densitiesGuang-hao LI0Qian CHENG1Long LI2Da-lei LU3Wei-ping LU4Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology/Agricultural College, Yangzhou University/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou 225009, P.R.ChinaJiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology/Agricultural College, Yangzhou University/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou 225009, P.R.ChinaJiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology/Agricultural College, Yangzhou University/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou 225009, P.R.ChinaCorrespondence LU Da-lei, Tel: +86-514-87979377, Fax: +86-514-87996817; Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology/Agricultural College, Yangzhou University/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou 225009, P.R.ChinaJiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology/Agricultural College, Yangzhou University/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou 225009, P.R.ChinaOptimal planting density and proper fertilization method are important factors to improve maize yield and nutrient utilization. A two-year (2016 and 2017) field experiment was conducted with three plant densities (6.0, 7.5 and 9.0 plants m–2) and three fertilization modes (no fertilizer, 0F; one-off application of slow-released fertilizer, SF; twice application of conventional fertilizer, CF). Results indicated that the grain yields and N, P and K use efficiencies under SF with the optimal planting density (7.5 plants m–2) were the highest among all the treatments in 2016 and 2017. Compared with CF, SF could increase post-silking dry matter accumulation and promote N, P and K uptake at pre- and post-silking stages; this treatment increased grain N, P and K concentrations and resulted in high N, P and K use efficiencies. Nutrient (N, P and K) absorption efficiencies and partial productivity, and nutrient (N and P) recovery efficiency in SF treatment were significantly higher than those in CF treatments under the planting density of 7.5 plants m–2. Under both SF and CF conditions, the grain yield, total N accumulation and nutrient use efficiencies initially increased, peaked at planting density of 7.5 plants m–2, and then decreased with increasing plant density. Based on the yield and nutrient use efficiency in two years, plant density of 7.5 plants m–2 with SF can improve both the grain yield and N, P and K use efficiency of spring maize in Jiangsu Province, China.http://www.sciencedirect.com/science/article/pii/S2095311920632142maizegrain yieldslow-released fertilizernutrient use efficiencyplanting density |
| spellingShingle | Guang-hao LI Qian CHENG Long LI Da-lei LU Wei-ping LU N, P and K use efficiency and maize yield responses to fertilization modes and densities Journal of Integrative Agriculture maize grain yield slow-released fertilizer nutrient use efficiency planting density |
| title | N, P and K use efficiency and maize yield responses to fertilization modes and densities |
| title_full | N, P and K use efficiency and maize yield responses to fertilization modes and densities |
| title_fullStr | N, P and K use efficiency and maize yield responses to fertilization modes and densities |
| title_full_unstemmed | N, P and K use efficiency and maize yield responses to fertilization modes and densities |
| title_short | N, P and K use efficiency and maize yield responses to fertilization modes and densities |
| title_sort | n p and k use efficiency and maize yield responses to fertilization modes and densities |
| topic | maize grain yield slow-released fertilizer nutrient use efficiency planting density |
| url | http://www.sciencedirect.com/science/article/pii/S2095311920632142 |
| work_keys_str_mv | AT guanghaoli npandkuseefficiencyandmaizeyieldresponsestofertilizationmodesanddensities AT qiancheng npandkuseefficiencyandmaizeyieldresponsestofertilizationmodesanddensities AT longli npandkuseefficiencyandmaizeyieldresponsestofertilizationmodesanddensities AT daleilu npandkuseefficiencyandmaizeyieldresponsestofertilizationmodesanddensities AT weipinglu npandkuseefficiencyandmaizeyieldresponsestofertilizationmodesanddensities |