A5005040405- Agronomic Practices and Intercropping Systems
- Legume Nitrogen Fixing Symbiosis
- Soil Carbon and Nitrogen Dynamics
- Soybean genetics and cultivation
- Agroforestry and silvopastoral systems
- Soil Management and Crop Yield
- Rural development and sustainability
- Plant Parasitism and Resistance
- Crop Yield and Soil Fertility
- Polymer-Based Agricultural Enhancements
Sichuan Agricultural University
2016-2023
Universitat de Lleida
2022
Ministry of Agriculture and Rural Affairs
2019
Sichuan Academy of Agricultural Sciences
2019
The blind pursuit of high yields via increased fertilizer inputs increases the environmental costs. Relay intercropping has advantages for yield, but a strategy N management is urgently required to decrease without yield loss in maize-soybean relay systems (IMS). Experiments were conducted with three levels and planting patterns, dry matter accumulation, nitrogen uptake, use efficiency (NUE), competition ratio (CR), system productivity index (SPI), land equivalent (LER), crop root...
Maize-soybean relay intercropping is an effective approach to improve the crop yield and nutrient use efficiency, which widely practiced by farmers in southwest of China. To elucidate characteristics different planting patterns on uptake, soil chemical properties, bacteria community maize-soybean systems, we conducted a field experiment 2015–2016 with single factor treatments, including monoculture maize (MM), soybean (MS), (IMS), fallow (CK). The results showed that N uptake grain increased...
In China, the abuse of chemical nitrogen (N) fertilizer results in decreasing N use efficiency (NUE), wasting resources and causing serious environmental problems. Cereal-legume intercropping is widely used to enhance crop yield improve resource efficiency, especially Southwest China. To optimize utilization increase grain yield, we conducted a two-year field experiment with single-factor randomized block designs maize-soybean system (IMS). Three rates, NN (no application), LN (lower...
Optimized nitrogen (N) management can increase N-use efficiency in intercropping systems. Legume-nonlegume systems reduce N input by exploiting biological fixation legumes. Measurement of utilization help dissecting the mechanisms underlying uptake and legume-nonlegume An experiment was performed with three planting patterns: monoculture maize (MM), soybean (SS), maize-soybean relay (IMS), application levels: zero (NN), reduced (RN), conventional (CN) to investigate crop characteristics....
Abstract Intercropping can obtain yield advantages, but the mechanism of advantages maize-legume intercropping is still unclear. Then, we explored effects cropping systems and N input on in a two-year experiment. Cropping included monoculture maize ( Zea mays L.) (MM), soybean Glycine max L. Merr.) (MS), peanut Arachis hypogaea (MP), maize-soybean substitutive relay (IMS), maize-peanut strip (IMP). without (N0) addition (N1). Results showed that maize’s leaf area index was 31.0% 34.6% higher...
Maize’s nitrogen (N) uptake can be improved through maize-legume intercropping. N mechanisms require further study to better understand how legumes affect root growth and determine maize’s absorptive capacity in We conducted a two-year field experiment with two treatments (zero (N0) conventional (N1)) three planting patterns (monoculture maize ( Zea mays L.) (MM), maize-soybean Glycine max L. Merr .) strip intercropping (IMS), maize-peanut Arachis hypogaea (IMP)). sought by investigating...
Insufficient and unbalanced biomass supply inhibited soybean [Glycine max (L.) Merr.] yield formation in the maize-soybean relay strip intercropping (IS) monoculture (SS). A field experiment was conducted to explore increase mechanism of DA-6 IS SS treatments. In this 2-year experiment, compact maize "Denghai 605" shade-tolerant "Nandou 25" were selected as cultivated materials. with four concentrations, i.e., 0 mg/L (CK), 40 (D40), 60 (D60), 80 (D80), sprayed on leaves at beginning...
Applying Biochar (BC) or biofertilizers (BF) are potential approaches to reduce the nitrogen input and mitigate soil degradation in maize soybean relay strip intercropping system (IS). In 2019 2020, a two-factor experiment was carried out examine effects of BC BF on productivity yield production IS. 4 N levels (8.4, 22.5, 45 kg, 67.5 kg ha - 1) referred as N0, N1, N2, N3 were paired with various organic treatments, including (150 1), (300 without amendments (CK). The results demonstrated...
Maize (Zea mays L.)-soybean (Glycerine Max L. Merr.) relay intercropping provides a way to enhance land productivity. However, the late-planted soybean suffers from maize shade. After harvest, how recovery growth influences leaf and nodule traits are still unclear. A three-year field experiment was conducted evaluate effects of genotypes, i.e., supernodulating (nts1007), nandou-12 (ND12), guixia-3 (GX3), crop configurations, interspecific row spacing 45 (I45), 60 (I60), 75 cm (I75), sole...
Soil organic matter (SOM), soil aggregates, and microbes play key roles in agriculture fertility. In intercropping systems, the influences of straw incorporation N input on dynamics physicochemical microbial properties their relationships are still unclear. We explore changes with two managements, i.e., wheat (SI) removal (SR), four supply rates for intercropped soybean, 60 (N60), 30 (N30), 15 (N15), 0 (N0) kg ha−1, wheat–maize–soybean relay strip systems. The results showed that SOM...
Intercropping can increase crop N uptake and reduce carbon emissions. However, the effects of straw incorporation reduction on use emissions in intercropping are still unclear. We explored mechanism uptake, efficiency, CO2 wheat-maize-soybean relay strip system. A two-year field experiment was conducted with two managements, i.e., wheat (SI) removal (SR), four application levels soybean, 60 (N60), 30 (N30), 15 (N15), 0 kg ha-1 (N0). assessed soil properties, emissions, characteristics roots,...
<p id="C2">To clarify the difference of nutrient uptake and utilization to yield advantage between maize-soybean relay intercropping maize-peanut intercropping, we conducted a field experiment for two consecutive years. The results were obtained by comparing nitrogen (N), phosphorous (P), potassium (K) absorption efficiency in with sole cropping. showed that land equivalent ratio (LER) was 1.16-1.72, which had yield, but LER 0.89-1.13, no obvious disadvantage. In system, amount N, P, K...
To study the effect of N supplied levels and fertilization distances on saving fertilizer improving yield in maize/soybean intercropping system, a field experiment was carried out with three supplying ( RN1: 210 kg N·hm-2, RN2: 270 N·hm-2 CN: 330 N·hm-2) four fertilizing (D1: 0 cm, D2: 15 D3: 30 cm D4: 45 indicating distance between site maize narrow row). Compared CN, results showed that dry matter accumulation translocation, their contribution to grain post-anthesis under RN2 were...
<p id="C3">To study the effects of planting system and nitrogen application rate on soybean soil aeration environment nodulation fixation, we adopted a two-factor split area experiment design, with main pattern [soybean monoculture (SS), maize/soybean relay strip intercropping (MS)], sub-regions different rates [no (NN: 0 kg hm<sup>-2</sup>), reduced (RN: 45 constant (CN: 60 hm<sup>-2</sup>)]. The dynamic changes O<sub>2</sub> content respiration during growth period was monitored,...
The flower and pod abscission is one of the characteristics soybean that severely limits yield, especially when intercropped with maize. Therefore, suitable cultivars for intercropping are urgently needed to improve farmland productivity. We conducted a two-year field experiment evaluate abscission, dry matter production, yield advantages 15 cultivars. results principal component analysis (PCA) cluster (CA) showed were classified into three groups, i.e., high-yielding group (HYG),...
过田间试验, 研究了甜玉米/大豆间作对甜玉米产量、主要农艺指标、养分利用率和光能利用率的影响。结果表明, 甜玉米/大豆间作模式的土地当量比大于1(1.07), 说明甜玉米/大豆间作具有一定的产量优势;与单作相比, 间作甜玉米千粒重提高17.88%, 差异显著; 甜玉米/大豆间作群体经济效益提高24.08%, 养分利用率提高54.09%, 两指标的差异达到极显著水平; 生长后期, 间作对甜玉米光能利用体现出一定的正效应, 播后55 d间作甜玉米光能利用率较单作增加28.44%。甜玉米/大豆间作不仅可改善作物群体结构, 提高自然资源利用率, 而且可减少化肥施用量, 具有显著的经济和环境效益。