scholarly journals Effects of Straw Incorporation and Reduction of Chemical Fertilizer on Soil Nutrients and Crop Yield in Farmland

2017 ◽  
Author(s):  
Zhu Chen ◽  
Jing-Jing Yue ◽  
Ya-Nan Yan ◽  
Hong-Xiang Hu ◽  
Yun-Fei Di
Keyword(s):  
Soil Nutrients ◽  
Crop Yield ◽  
Chemical Fertilizer ◽  
Straw Incorporation

scholarly journals Effects of Vegetable & Flower Residues Returning with Compound Microorganism on Soil Nutrients Release and Crop Yield

2011 ◽  
Vol 11 ◽  
pp. 774-781
Author(s):  
Fei Shen ◽  
Yongmei Zeng ◽  
Shihuai Deng ◽  
Yongmei Li
Keyword(s):  
Soil Nutrients ◽  
Crop Yield

Straw mulching with fertilizer nitrogen: An approach for improving crop yield, soil nutrients and enzyme activities

2019 ◽  
Vol 35 (3) ◽  
pp. 526-535 ◽  
Author(s):  
Kashif Akhtar ◽  
Weiyu Wang ◽  
Ahmad Khan ◽  
Guangxin Ren ◽  
Sajjad Zaheer ◽  
...  
Keyword(s):  
Soil Nutrients ◽  
Crop Yield ◽  
Enzyme Activities ◽  
Fertilizer Nitrogen ◽  
Straw Mulching

scholarly journals Effects of Straw Incorporation on Soil Nutrients, Enzymes, and Aggregate Stability in Tobacco Fields of China

2016 ◽  
Vol 8 (8) ◽  
pp. 710 ◽  
Author(s):  
Jiguang Zhang ◽  
Guodong Bo ◽  
Zhongfeng Zhang ◽  
Fanyu Kong ◽  
Yi Wang ◽  
...  
Keyword(s):  
Soil Nutrients ◽  
Aggregate Stability ◽  
Straw Incorporation

scholarly journals Bio-fortified Compost as A Substitute for Chemical N Fertilizer for Growth, N Accumulation, and Yield of Sweet Corn

Akta Agrosia ◽  
2020 ◽  
Vol 22 (2) ◽  
pp. 84-94
Author(s):  
Marwanto Marwanto ◽  
Shinta Puspita Wati ◽  
Atra Romeida ◽  
Merakati Handajaningsih ◽  
Teguh Adiprasetyo ◽  
...  
Keyword(s):  
Crop Yield ◽  
Sweet Corn ◽  
Block Design ◽  
Chemical Fertilizer ◽  
N Fertilizer ◽  
Growth And Yield ◽  
Partial Substitution ◽  
Inorganic N ◽  
N Accumulation ◽  
Total N

ABSTRACTFinding the appropriate method of fertilizer application to simultaneously enhance farm productivity and ensure ecosystem sustainability has been receiving a lot of attention. A field experiment was carried in the Research Plot Agriculture Faculty Bengkulu University Campus Indonesia in 2017. The purpose of this study was (1) to assess the significant effects of inorganic N fertilizer (IF) substitution with bio-fortified compost (BC) under equal N conditions on growth, N accumulation, and yield of sweet corn, and (2) to determine the appropriate level to which inorganic N fertilizer could be reduced and equivalently replaced by bio-fortified compost to promote sweet corn growth and yield. The treatments consisted of six different proportions of inorganic N fertilizer (IF) substitution with bio-fortified compost (BC). Each treatment was designed on the basis of equal amount of total N input from a combination of both fertilizers (138 kg N ha-1).  They were arranged in a randomized block design with 3 replications. They included (1) 100% IF plus 0% BC, (2) 75% IF plus 25% BC, (3) 50% IF plus 50% BC, (4) 25% IF plus 75%, (5) 0% IF plus 100% BC, and (6) no IF and no BC. The results showed that the increasing proportion of IF replaced by BC resulted in an increase for all variables (except for plant height) but they decreased when 100% IF substitution with 100% BC was applied. Among the partial substitution treatments, 50% IF plus 50% BC consistently produced the best growth, N accumulation, and yield increase. Treatments of 50% IF plus 50% BC and 25% IF plus 75% BC produced the highest green cob weight with husk per plot (10.74 – 10.84 kg plot-1), which was 16% to 19% higher than treatment of 100% IF plus % BC. The three partial substitution treatments produced crop yield components as good as treatment of 100% IF plus 0% BC. Treatment of 0% IF plus 100% BC reduced plant growth, N accumulation, and crop yield and its components. The appropriate level to which IF could be reduced and equivalently replaced by BC was at the range of 25% to 75%. Hence, a suitable replacement of inorganic N fertilizer with bio-fortified compost is considered a reasoned way to simultaneously increase crop yield and reduce environmental degradation.Keywords: organic fertilizer, chemical fertilizer, bio-fortification, chemical fertilizer substitution, bio-fortified compost

scholarly journals Mechanism of Intermittent Deep Tillage and Different Depths Improving Crop Growth From the Perspective of Rhizosphere Soil Nutrients, Root System Architectures, Bacterial Communities, and Functional Profiles

2022 ◽  
Vol 12 ◽  
Author(s):  
Yabing Gu ◽  
Yongjun Liu ◽  
Jiaying Li ◽  
Mingfeng Cao ◽  
Zhenhua Wang ◽  
...  
Keyword(s):  
Root System ◽  
Soil Nutrients ◽  
Crop Yield ◽  
System Architecture ◽  
Bacterial Communities ◽  
Root System Architecture ◽  
Crop Growth ◽  
Deep Tillage ◽  
Tillage Practices ◽  
Functional Profiles

Long-term conventional shallow tillage reduced soil quality and limited the agriculture development. Intermittent deep tillage could effectively promote agricultural production, through optimizing soil structure, underground ecology system, and soil fertility. However, the microecological mechanism of intermittent deep tillage promoting agriculture production has never been reported, and the effect of tillage depth on crop growth has not been explored in detail. In this study, three levels of intermittent deep tillage (30, 40, and 50 cm) treatments were conducted in an experimental field site with over 10 years of conventional shallow tillage (20 cm). Our results indicated that intermittent deep tillage practices helped to improve plant physiological growth status, chlorophyll a, and resistance to diseases, and the crop yield and value of output were increased with the deeper tillage practices. Crop yield (18.59%) and value of output (37.03%) were highest in IDT-50. There were three mechanisms of intermittent deep tillage practices that improved crop growth: (1) Intermittent deep tillage practices increased soil nutrients and root system architecture traits, which improved the fertility and nutrient uptake of crop through root system. (2) Changing rhizosphere environments, especially for root length, root tips, pH, and available potassium contributed to dissimilarity of bacterial communities and enriched plant growth-promoting species. (3) Functions associated with stress tolerance, including signal transduction and biosynthesis of other secondary metabolites were increased significantly in intermittent deep tillage treatments. Moreover, IDT-30 only increased soil characters and root system architecture traits compared with CK, but deeper tillage could also change rhizosphere bacterial communities and functional profiles. Plant height and stem girth in IDT-40 and IDT-50 were higher compared with IDT-30, and infection rates of black shank and black root rot in IDT-50 were even lower in IDT-40. The study provided a comprehensive explanation into the effects of intermittent deep tillage in plant production and suggested an optimal depth.

scholarly journals Ammonia Volatilization Reduced by Combined Application of Biogas Slurry and Chemical Fertilizer in Maize–Wheat Rotation System in North China Plain

2020 ◽  
Vol 12 (11) ◽  
pp. 4400 ◽  
Author(s):  
Md Arifur Rahaman ◽  
Xiaoying Zhan ◽  
Qingwen Zhang ◽  
Shuqin Li ◽  
Shengmei Lv ◽  
...  
Keyword(s):  
Crop Yield ◽  
North China Plain ◽  
North China ◽  
Field Experiments ◽  
Ammonia Volatilization ◽  
Maximum Yield ◽  
Chemical Fertilizer ◽  
Biogas Slurry ◽  
Rotation System ◽  
Combined Application

Digestate and biogas slurry (BS) are the byproduct of biogas engineering that could be used for elevating plant growth. However, the consequent emissions of ammonia from BS are considered a severe threat to the atmosphere. Herein, we conducted two consecutive field experiments with wheat–maize rotations to find out the optimum ratio of BS to combine with chemical fertilizer (CF) to reduce ammonia volatilization (AV) while keeping the stable crop yield. In maize season, 226.5 kg N/ha of CF was applied. In wheat season, 226.5 kg N/ha was applied at different ratios (100%, 80%, and 50%) between BS and CF. Our results found that the maximum yield of 6250 kg/ha was produced by CF, and this yield could be obtained through a combined application of 38% BS mixed with CF. Highest AV produced of 16.08 kg/ha by CF. BS treatments significantly reduced the emission from 18% to 32% in comparison to CF. The combined application of BS-CF produced the highest yield due to essential nutrients coming from both BS-CF. Subsequently, it reduced the AV depending on fertilizer type and fertilizer rate. An optimal ratio of 38% BS was recommended to produce the highest yield and lowest ammonia emissions. The application of BS together with different ratios of CF could be an alternative agricultural strategy to obtain desired crop yield and reduce AV in North China Plain (NCP).

Crop nutrients: control and efficiency of use

1985 ◽  
Vol 310 (1144) ◽  
pp. 175-191
Keyword(s):  
Computer Simulation ◽  
Elemental Composition ◽  
Soil Nutrients ◽  
Crop Yield ◽  
Uptake Rate ◽  
Chemical Fertilizers ◽  
Improve Efficiency ◽  
New Methods ◽  
Crop Nutrients ◽  
Almost All

Inputs of chemical fertilizers are essential in almost all intensive agricultures to reach maximum crop yield, but efficiency of use, expressed as the fraction recovered in the harvested crop, is often low. The more accurate control of quantity and better timing of application could improve efficiency, and new methods for achieving this are discussed, including computer simulation. Some species and cultivars are particularly efficient in their use of soil nutrients, partly by having a low content in their tissues, but more often by special root processes and symbionts that aid uptake. Greater use of these should be possible. More exact control of crop elemental composition can be important for quality. Plant processes which control composition via uptake rate are only now being investigated, but possible methods of modifying these are considered.

scholarly journals Straw Incorporation Strategy on Cereal Crop Yield in China

Crop Science ◽  
2015 ◽  
Vol 55 (4) ◽  
pp. 1773-1781 ◽  
Author(s):  
Hong Zhao ◽  
Binfeng Sun ◽  
Fei Lu ◽  
Guo Zhang ◽  
Xiaoke Wang ◽  
...  
Keyword(s):  
Crop Yield ◽  
Cereal Crop ◽  
Straw Incorporation
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