Long-term potash application and wheat straw return reduced soil potassium fixation and affected crop yields in North China

2017 ◽  
Vol 108 (2) ◽  
pp. 121-133 ◽  
Author(s):  
Deshui Tan ◽  
Zhaohui Liu ◽  
Lihua Jiang ◽  
Jiafa Luo ◽  
Jie Li
Keyword(s):  
Wheat Straw ◽  
North China ◽  
Crop Yields ◽  
Potassium Fixation ◽  
Soil Potassium ◽  
Straw Return

Impacts of long-term lack of potassium fertilization on different forms of soil potassium and crop yields on the North China Plains

2017 ◽  
Vol 17 (6) ◽  
pp. 1607-1617 ◽  
Author(s):  
Jiangye Li ◽  
Lingan Niu ◽  
Qichun Zhang ◽  
Hongjie Di ◽  
Jinmin Hao
Keyword(s):  
North China ◽  
Crop Yields ◽  
Soil Potassium ◽  
The North ◽  
Potassium Fertilization

Long-term effects of potassium fertilization and straw return on soil potassium levels and crop yields in north-central China

2014 ◽  
Vol 169 ◽  
pp. 116-122 ◽  
Author(s):  
Shicheng Zhao ◽  
Ping He ◽  
Shaojun Qiu ◽  
Liangliang Jia ◽  
Mengchao Liu ◽  
...  
Keyword(s):  
Crop Yields ◽  
Central China ◽  
Long Term Effects ◽  
North Central ◽  
Soil Potassium ◽  
Potassium Fertilization ◽  
Straw Return

Effects of long‐term straw return on soil organic carbon storage and sequestration rate in North China upland crops: A meta‐analysis

2020 ◽  
Vol 26 (4) ◽  
pp. 2686-2701 ◽  
Author(s):  
Medhn Berhane ◽  
Miao Xu ◽  
Zhiying Liang ◽  
Jianglan Shi ◽  
Gehong Wei ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Storage ◽  
North China ◽  
Meta Analysis ◽  
Soil Organic Carbon Storage ◽  
Sequestration Rate ◽  
Straw Return ◽  
Organic Carbon Storage

scholarly journals Responses of Cereal Yields and Soil Carbon Sequestration to Four Long-Term Tillage Practices in the North China Plain

Agronomy ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 176
Author(s):  
Suying Chen ◽  
Peipei Yang ◽  
Yuming Zhang ◽  
Wenxu Dong ◽  
Chunsheng Hu ◽  
...  
Keyword(s):  
North China Plain ◽  
North China ◽  
C Sequestration ◽  
Summer Maize ◽  
Soil C ◽  
Tillage Practices ◽  
The North ◽  
Maize Straw ◽  
Straw Return

Current tillage practices in the important winter wheat–summer maize double cropping system of the North China Plain are under debate because of negative effects on soil quality and crop yield. Therefore, a long-term experiment was conducted from 2001 to 2018 to determine the effects of soil conservation practices on crop yield and soil quality. The treatments were imposed following maize harvest and prior wheat seeding, and were defined as follows: (1) moldboard ploughing (0–20 cm) following maize straw removal (CK); (2) moldboard ploughing (0–20 cm) following maize straw return (CT); (3) rotary tillage following maize straw return (RT); and (4) no tillage with maize straw covering the soil surface (NT). Wheat straw was chopped and spread on the soil in all treatments and maize seeded without prior tillage. Wheat yields were higher in CT than RT and NT treatments (p < 0.05); NT had 18% lower wheat yields than CT. No significant differences were found between treatments in summer maize yields. The soil organic carbon (SOC) content in the surface layer (0–5 cm) was higher in NT and RT compared to CT and CK. However, SOC content in the 10–20 cm and 20–30 cm layers was lower in NT and RT compared to CT and CK. Similarly, available phosphorus in the surface soil was higher in NT and RT than in CT and CK. but the opposite was true for the lower soil layers. SOC stocks (0–30 cm) increased in all treatments, and were initially faster in NT and RT than in CT and CK. However, SOC stocks were higher in CT than in other treatments at the end of the experiment. This finding indicates that no tillage and reduced tillage decreased both wheat yields and soil C sequestration over time; it also indicates that CT was the most robust in terms of crop yields and soil C sequestration.

Impacts of long-term composted manure and straw amendments on rice-associated weeds in a rice-wheat rotation system

Weed Science ◽  
2021 ◽  
pp. 1-40
Author(s):  
Pinglei Gao ◽  
Aimei Hong ◽  
Min Han ◽  
Minghan Song ◽  
Yunhui Duan ◽  
...  
Keyword(s):  
Species Richness ◽  
Wheat Straw ◽  
Chemical Fertilizer ◽  
Shoot Biomass ◽  
Pig Manure ◽  
Total Biomass ◽  
Rotation System ◽  
Straw Return ◽  
Density And Biomass

ABSTRACT As part of a long-term experiment to determine the impacts of composted manure and straw amendments (replacing 50% of chemical fertilizer with composted pig manure, wheat straw return combined with chemical fertilizer, and setting no fertilizer and chemical fertilizer-only as controls) on rice-associated weeds in a rice (Oryza sativa L.) - wheat (Triticum aestivum L.) rotation system, species richness, abundance, density, and biomass of weeds were assessed during years eight and nine. Fertilization decreased the species richness and total density of rice-associated weeds but increased their total biomass. The species richness and densities of broadleaf and sedge weeds decreased with fertilization, while species richness grass weeds increased only with straw return and density was not significantly affected. The shoot biomass per square meter of grass and broadleaf weeds were significantly higher with fertilization treatments than with the no fertilizer control, while that of sedge weeds declined with fertilizer application. With fertilization, the densities of monarch redstem (Ammannia baccifera L.) and smallflower umbrella sedge (Cyperus difformis L.) decreased, that of Chinese sprangletop [Leptochloa chinensis (L.) Nees] increased, and those of barnyardgrass [Echinochloa crus-galli (L.) P. Beauv.] and monochoria [Monochoria vaginalis (Burm. f.) C. Presl ex Kunth] were not significantly affected. Ammannia baccifera was the most abundant weed species in all treatments. Whereas composted pig manure plus fertilizer resulted in higher density of A. baccifera and lower shoot biomass per plant than chemical fertilizer only; wheat straw return plus chemical fertilizer caused lower density and shoot biomass of A. baccifera. Therefore, it may be possible that fertilization strategies that suppress specific weeds could be used as improved weed management program components in rice production systems.

scholarly journals Long-term straw returning improve soil K balance and potassium supplying ability under rice and wheat cultivation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhiyi Zhang ◽  
Dongbi Liu ◽  
Maoqian Wu ◽  
Ying Xia ◽  
Fulin Zhang ◽  
...  
Keyword(s):  
Exchangeable K ◽  
Soil Potassium ◽  
Wheat Cultivation ◽  
K Fertilizer ◽  
Straw Return ◽  
Potassium Supply ◽  
Intensive Cropping ◽  
Straw Incorporation ◽  
K Fertilization

AbstractThe aims of the present study were to provide scientific bases for rational use of crop straw to substitute chemical potassium (K) input. The effects of potassium fertilization and straw incorporation on soil K balance and K supplying in a long-term (14 years) field experiment. Five treatments were examined: (1) no fertilization (CK); (2) mineral fertilizing (NPK); (3) straw 6000 kg h m−2 (S); (4) NPK with straw 3000 kg h m−2 (NPK1/2S); and (5) NPK with straw 6000 kg h m−2 (NPKS). K composition, K balance and quantity-intensity (Q/I) relationship were studied. Under no fertilization or low straw returned conditions, soil K was unbalanced and deficienct seriously. Straw return at 6000 kg h m−2 per season with fertilization improved the soil potassium supply and K balance. Long-term K surplus (4 or 5 years), compared with NPK, the NPKS significantly increased non-special K adsorption (Knsa) and non-exchangeable K (Kne) by 5.7–11.2 mg kg−1 and 65.7–128.1 mg kg−1, respectively. Q/I relationship showed cropping without straw K or without fertilizer K resulted in lower quantity (nonspecifically and specifically held K i.e. – ∆K0 and Kx) and intensity (equilibrium activity ratio i.e. CR0K) of K in tested soils. K-fertilization with straw maintain higher exchangeable K (EK0) and a higher difference between EK0 and minimum exchangeable K(EKmin), and would help to prevent depletion in non-exchangeable pool of soil K under intensive cropping. Additionally, The straw return mainly decreased potential buffering capacity for exchangeable pool (PBCKn), 43.92–48.22% of added K in soil might be converted to exchangeable pool while it was 25.67–29.19% be converted to non-exchangeable pool. The contribution of exchangeable K towards plant K uptake would be higher in the soil with straw than the soil without straw and the non-exchangeable K would be the long-term fixed K as a supplement to the potassium pool. K fertilizer with 6000 kg h m−2 straw return in each crop season increased soil available K and slowly available K. The findings underlined importance of the straw return and contribution for sustain K supplying ability of soils.

Sign in / Sign up

Export Citation Format

Share Document