Long-Term Effect of Tillage Practices and Nitrogen Fertilization on Corn Yield

Abstract. Retardation of soil organic carbon (SOC) decay after nitrogen addition to litter or soil has been suggested in several recent studies and has been attributed to a retardation in lignin decay. With our study we tested the long-term effect of mineral nitrogen fertilization on the decay of the SOC component lignin in arable soil. To achieve this, we tracked 13C-labeled lignin and SOC in an arable soil that is part of a 36-year field experiment with two mineral nitrogen fertilization levels. We could show that nitrogen fertilization neither retarded nor enhanced the decay of old SOC or lignin over a period of 36 years, proposing that decay of lignin was less sensitive to nitrogen fertilization than previously suggested. However, for fresh biomass there were indications that lignin decay might have been enhanced by nitrogen fertilization, whereas decay of SOC was unaffected. A retardation of SOC decay due to nitrogen addition, as found in other experiments, can therefore only be explained by effects on lignin decay, if lignin was actually measured.

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Long term effect of legume intensified crop rotations and tillage practices on productivity and profitability of maize vis-a-vis soil fertility in North-Western Indo-Gangetic Plains of India

Legume Research - An International Journal ◽

10.18805/lr.v0i0.7583 ◽

2017 ◽

Author(s):

M. R. Yadav ◽

C. M. Parihar ◽

S. L. Jat ◽

A. K. Singh ◽

Rakesh Kumar ◽

...

Keyword(s):

Management Practices ◽

Term Effect ◽

Crop Rotations ◽

Western India ◽

Tillage Practices ◽

Net Returns ◽

Long Term Effect ◽

Stover Yield ◽

North Western

The present study was planned to evaluate the long term effect of legume intensified maize based crop rotations and tillage practices on productivity, profitability of maize vis-a-vis soil health. The experiment consisted of three tillage practices i.e. zero tillage (ZT), permanent bed (PB) and conventional tillage (CT) as main plot treatments and four crop rotations (MWMb; maize-wheat-mungbean, MCS; maize-chickpea-Sesbania, MMuMb; maize-mustard-mungbean, MMS; maize-maize-Sesbania) as sub plot treatments. Results revealed that ZT and PB resulted into significantly (P less than 0.05) improvement in grain (7.7-14.2%) and stover yield (7.4-13.0%) of maize over CT. Similarly, maize grain and stover yield were invariably higher in MCS and MWMb systems compared to MMuMb and MMS rotations. The total soil carbon (TSC) content increased by 15.4-17.4 and 20.32-20.91% with ZT and PB over CT in 0-15 and 15-30 cm soil depths, respectively. However, MCS and MWMb rotations registered 11.3-18.0% (0-15 cm) and 8.4-11.0% (15-30 cm) higher TSC over MMuMb rotation. Similarly, ZT and PB resulted into significantly (P less than 0.05) improvement in available soil nitrogen (N), phosphorus (P) and potassium (K) compared to CT. ZT/PB under MCS crop rotations registered higher net returns and BC ratio compared to rest of the treatment combinations. Interaction effect of tillage and crop rotations were significant (P less than 0.05) for stover yield, net returns, BC ratio and TSC and all these parameters were reported maximum with ZT-MCS. Thus, the present study suggests that CA based crop management practices can be advocated as sustainable intensification strategy in north-western India.

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Long term effect of nitrogen fertilization on yield and soil fertility status of rainfed cotton under vertisols track of Southern district

International Journal of Chemical Studies ◽

10.22271/chemi.2020.v8.i4r.9860 ◽

2020 ◽

Vol 8 (4) ◽

pp. 1746-1749

Author(s):

V Sanjiv Kumar ◽

K Baskar ◽

S Manoharan ◽

A Solaimalai ◽

A Anadharaj

Keyword(s):

Soil Fertility ◽

Nitrogen Fertilization ◽

Term Effect ◽

Fertility Status ◽

Long Term Effect ◽

Southern District ◽

Soil Fertility Status

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The long-term effect of legumes as forecrops on the productivity of rotation (winter rape-winter wheat-winter wheat) with nitrogen fertilization

Plant Soil and Environment ◽

10.17221/556/2018-pse ◽

2019 ◽

Vol 65 (No. 3) ◽

pp. 138-144 ◽

Cited By ~ 5

Author(s):

Agnieszka Faligowska ◽

Grażyna Szymańska ◽

Katarzyna Panasiewicz ◽

Jerzy Szukała ◽

Wiesław Koziara ◽

...

Keyword(s):

Winter Wheat ◽

Field Experiment ◽

Nitrogen Fertilization ◽

Spring Barley ◽

Term Effect ◽

Winter Rape ◽

N Efficiency ◽

Long Term Effect ◽

Plot Design

A field experiment was carried out in the years 2012–2018 in Poland in a split-plot design. The aim of the study was to determine the long-term effect of legumes as forecrops on the productivity of rotation with nitrogen fertilization. The rotation included: legumes + spring barley (SB), winter rape (WR), winter wheat (WW) and winter wheat. The study was conducted as a two-factorial field experiment with four replications. The present study showed that legumes as forecrops increased the yield of all after-harvest crops in rotation. Yielding of these crops also depended on nitrogen fertilization and position in the rotation. After comparison of the influence of nitrogen fertilization on yield of cereals, it was observed that the effect of this factor was greater for WW cultivated in the fourth year of rotation than for WW cultivated in the third year of rotation. In relation with control, each dose of nitrogen fertilization caused a significant increase of WR and cereals yield, but the dose of 180 kg N/ha did not increase yield significantly in comparison to the dose of 120 kg N/ha. There was also negative agronomic N-efficiency observed between doses of 120–180 kg N/ha, which means that it is not necessary to use 180 kg N/ha, especially if there are legumes in crop rotation.

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Timing of atrazine application for control of quackgrass (Agropyron repens)

Phytoprotection ◽

10.7202/706039ar ◽

2005 ◽

Vol 74 (2) ◽

pp. 89-99

Author(s):

J.D. Gaynor ◽

A.S. Hamill

Keyword(s):

Bare Soil ◽

Term Effect ◽

Corn Yield ◽

Split Application ◽

Single Application ◽

Significant Extent ◽

Long Term Effect ◽

Atrazine Treatment ◽

Agropyron Repens

The use of foliar or soil applied atrazine to control quackgrass (Agropyron repens) in corn (Zea mays) was investigated. Atrazine treatments to control quackgrass significantly increased corn yield. Spring tillage without atrazine had little or no long term effect on quackgrass stand. A single application of 4.5 kg a.i. atrazine ha-1 applied in the fall or spring provided no better control of quackgrass than a split application of 2.25 kg a.i. atrazine ha-1 in either the foliage or bare soil experiments. Quackgrass recovery and soybean (Glycine max) yield were measured for 2 yr afterthe last atrazine application. Quackgrass did not recover to any significant extent within 2 yr after the cessation of the treatments on any of the atrazine treated plots. Atrazine residues from the previous fall applications significantly reduced soybean yield. Two years after the last atrazine treatment, soybean yields were similar, regardiess of former spring or fall atrazine application.

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