A5101687957- Rice Cultivation and Yield Improvement
- Plant nutrient uptake and metabolism
- Agriculture, Soil, Plant Science
- Soil Carbon and Nitrogen Dynamics
- Plant responses to water stress
- Crop Yield and Soil Fertility
- GABA and Rice Research
- Food composition and properties
- Agronomic Practices and Intercropping Systems
- Aluminum toxicity and tolerance in plants and animals
- Soil and Water Nutrient Dynamics
- Agricultural Systems and Practices
- Plant Micronutrient Interactions and Effects
- Genetic Mapping and Diversity in Plants and Animals
Sichuan Agricultural University
2013-2024
Ministry of Agriculture and Rural Affairs
2024
Rice Research Institute
2013-2023
China Meteorological Administration
2023
The quantity and quality of tillers determine the yield rice. In order to explore how optimized nitrogen fertilizer application (OFA) increases rice by affecting tiller growth, a pot experiment with three treatments was performed on basis previous researches investigate growth development tillers. Results showed that under OFA, emerging rate secondary high leaf position decreased, which increased number primary decrease ineffective accumulation biomass per tiller, promoted panicles. Compared...
Chalkiness, which is highly affected by nitrogen (N) management during grain filling, critical in determining rice appearance quality and consumer acceptability. We investigated the effects of N application rates 75 (N 1 ), 150 2 225 3 ) kg ha −1 on source-sink carbohydrate accumulation filling characteristics two indica hybrid cultivars with different chalkiness levels 2019 2020. further explored relationship between formation superior inferior grains. In this study, carbohydrates...
We sought to explore the role of postanthesis carbon and nitrogen (C-N) metabolism hybrid rice in increasing yield utilization efficiency (NUE). used 13C 15N dual-isotope tracer method physiological/biochemical analysis established different irrigation fertilization (W-N) regimes investigate relationship C-N characteristics, yield, NUE. The results showed that W-N had significant effects on absorption translocation N photosynthate, Aerobic combined with regime 30% base, tillering, 40%...
In order to optimize N application and understand how the different combinations of water management affect grain filling characteristics yield, we designed three irrigation regimes (W1 submerged irrigation, W2 alternate W3 dry cultivation), strategies at 180 kg ha−1 in 2010 2011. The relationship between yield formation were respectively investigated. results revealed that there obvious interacting effects regime on grain-filling as well. Compared with W1 treatments, under W2, N-fertilizer...
Abstract Direct seeding of rice has attracted attention because its simplicity and rapidity compared with traditional cultivation methods. However, the geographical location region in Southwest China is complex, common characteristics high yield direct hybrid indica law nutrient absorption accumulation are still unclear. This study results demonstrated that mean high‐yield varieties (HYV) two ecological points increased by 17.68%–19.98% 17.37%–27.06%, respectively, low‐yield (LYV). The...
To investigate the effects of no-tillage with straw mulching on absorption and utilization soil nitrogen (N), fertilizer N, N by rice under paddy-upland rotations.A field experiment three cropping systems: fallow-rice rotation without (FRN), wheat-rice wheat in season (WRS), oilseed rape-rice rape (ORS) was conducted from 2015 to 2017, along a mini-plot 15N-labeled urea straws, which 2017.No-tillage reduced uptake up 20 days after transplanting, total amount WRS ORS plants 46.33 61.67 kg/ha,...
Abstract BACKGROUND Rice is often rotated with dryland crops to produce sufficient foodstuff, as rice the main food crop of humans. In order verify whether under intensive rice‐based cropping system, high yield and good quality can be achieved simultaneously ensure security. Five long‐term paddy–upland rotations – wheat–rice (WR), rapeseed–rice (RR), garlic–rice (GR), broad beans–rice (BR) potato–rice (PR) were conducted from 2014 investigate yield, along profiling 24 elements in grain....
<p>The fertilizer management and the selection of rice cultivars play a vital role in production to maximize yield minimize cost. Many researches have elucidated combined increase nitrogen (N) accumulation N use efficiency (NUE) different genotypes, however, accumulation, translocation, distribution phosphorus (P) potassium (K), correlation N, P K absorption characteristics their relationships with grain NUE is still obscure. For this purpose, two differing were chosen for study, one...
1 四川农业大学水稻研究所, 四川温江 611130; 2 农业部西南作物生理生态与耕作重点实验室, 611130
Abstract Aims In order to reveal the influence of different cropping system on ammonia volatilization in paddy field and be helpful sustainable development agricultural system. Methods Two long-term paddy-upland rotations, garlic-rice (GR) wheat-rice (WR), were conducted investigate factors difference using situ ventilation method pot experiments. Results Although soil nitrogen level was higher under GR, loss amount decreased by 13.9% compared with WR, which mainly attributed 28.9% 12.4%...