Effect of soil compaction and nitrogen placement on weed population, yield and moisture use pattern of rainfed wheat

Singh, Rishi Pal; Singh, O. P.; Singh, Mahatim

doi:10.1007/bf00016958

Cited by 10 publications

(8 citation statements)

References 3 publications

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“…A deeper fertilizer placement may even improve crop growth over standard shallow or surface placements. Crop roots tend to proliferate around the area of the fertilizer grain, thus deeper placement can promote root length density and enhance N uptake (Lotfollahi et al 1997;Li et al 2009) as well as water utilization (Singh et al 1976) from deeper soil layers. Crops can obtain more than two thirds of their nutrition from deeper layers in the soil profile when nutrient availability and/or water is limited in the topsoil (Kautz et al 2013) and deep fertilization could improve plant growth, particularly during periods of little to no precipitation.…”

Section: Introductionmentioning

confidence: 99%

Deep N fertilizer placement mitigated N2O emissions in a Swedish field trial with cereals

Rychel

Meurer

Börjesson

et al. 2020

Nutr Cycl Agroecosyst

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Deep fertilizer placement is a proposed strategy to increase crop yield and nitrogen (N) use efficiency while decreasing nitrous oxide (N2O) emissions from soil to atmosphere. Our objective was to test three fertilization depth orientations to compare overall N use efficiency, based on a 2-year field trial on a mineral soil cropped with cereals in Uppsala, Sweden. The field was fertilized with ammonium nitrate at a rate of 120 kg ha−1 (2016) and 105 kg ha−1 (2017) and a deep fertilizer placement (DP) at 0.20 m was compared to a shallow placement (SP) at 0.07 m and a mixed-depth placement (MP) where fertilizer was halved between the depths of 0.07 and 0.20 m, and a non-fertilized control (NF). In 2016, compared to SP, MP and DP increased N content in harvested grain by 3.6% and 2.5% respectively, and DP increased grain yield by 11% (P < 0.05). In both years, N2O emissions were similar in DP and NF, whereas SP and MP emissions were similar but generally higher than those in DP and NF. Fertilizer-induced emission factors (EF) for the growing season of 2017 decreased with fertilizer placement depth and were 0.77 ± 0.07, 0.58 ± 0.03, and 0.10 ± 0.02 for SP, MP, and DP, repectively. Although deep N placement benefits are likely dependent on weather conditions and soil type, this strategy has a clear potential for mitigating N2O emissions without adversely affecting yield.

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Section: Introductionmentioning

confidence: 99%

Deep N fertilizer placement mitigated N2O emissions in a Swedish field trial with cereals

Rychel

Meurer

Börjesson

et al. 2020

Nutr Cycl Agroecosyst

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“…This is mainly because after deep application of nitrogen fertilizer, NH 4 + -N is adsorbed by the soil as it diffuses in it, thereby reducing the NH 4 + -N concentration in the soil (Yao et al, 2018a). Deep application reduces contact between the fertilizer and air, promotes root length density (Singh et al, 1976), shortens the time taken for nutrients to move to the root system, increases the absorption and utilization of nitrogen by rice, ultimately reducing NH 3 loss in rice fields (Yao et al, 2018b;Drescher et al, 2021). In addition, Rychel et al (2020) and Qi et al (2012) found that increasing fertilizer placement depth may be an effective method for keeping plant available N over longer periods, and found that delaying the nitrogen fertilization period can reduce ammonia volatilization.…”

Section: Side-deep Fertilization and Fertilizer Utilization Efficienc...mentioning

confidence: 99%

Development status and trends in side-deep fertilization of rice

Wang

Weng

et al. 2022

Renew. Agric. Food Syst.

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Overuse of fertilizer is detrimental to the sustainability of crop production from an economic and environmental perspective. While rice side-deep fertilization technology can significantly improve fertilizer utilization efficiency, improve crop yield and reduce environmental pollution caused by improper use of fertilizer compared with conventional fertilization methods. Therefore, side-deep fertilization technology has an important role in the sustainable development of agriculture. This article describes fertilizer selection, side-deep fertilization devices and the effects of side-deep fertilization technology on rice plants and soil. We summarize the types and characteristics of side-deep fertilizers and their ratios and modes. The basic principles and characteristics of the key components of mechanical fertilization devices are described in detail, including fertilizer discharging devices (rotating disc type, outer groove wheel type, screw type), fertilizer conveying devices (pneumatic, mechanical forced type) and sensors. The effects and mechanisms of side-deep fertilization on rice growth, yield, quality, fertilizer utilization efficiency and soil microorganisms are summarized. Finally, based on current research on side-deep fertilization, future directions are identified to aid the development of this promising technology.

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“…Hefni et al (1983) [22] found that the number of grains spike -1 and ear length reduced significantly if irrigation would be stopped at tillering and booting stages of wheat. Wheat plant growth was poor and spike length was low at rain fed condition (Singh and Singh, 1996) [23] . The fertile spikelets spike -1 was increased significantly under four irrigation and six irrigation treatments than two irrigations (Naik et al, 1997) [24] .…”

Section: Effect Of Irrigation Regimes On Yield Characters and Yieldmentioning

confidence: 99%

Influence of irrigation regimes and nitrogen fertilizer management on the performance of spring wheat in Bangladesh

Akondo¹,

Uddin²,

Islam³

2020

Int. J. Chem. Stud.

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A field experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University from November 2016 to March 2017 to find out the effect of irrigation regimes and nitrogen (N) fertilization on the yield performance of spring wheat. The experiment was comprised five levels of irrigation viz., no irrigation (I0); CRI (crown root initiation stage) (I1); CRI + maximum tillering stage (I2); CRI + maximum tillering stage + flowering Stage (I3); CRI + maximum tillering stage + flowering stage + grain formation stage (I4); and six levels of nitrogen viz., 0, 60, 80, 100, 120 and 140 kg ha -1 under Split Plot design with three replicates. Except few all the yield contributing characters and yield of wheat were significantly influence by the application of irrigation and nitrogen. The highest number of total tillers hill -1 (4.15), effective tillers hill -1 (3.63), number of spikelets spike -1 (14.67), grain yield (2.862 t ha -1 ), straw yield (3.45 t ha -1 ), biological yield (6.312 t ha -1 ) and harvest index (45.34%) were obtained from two irrigation at CRI+ Maximum tillering stage. In nitrogen management, the highest plant height (91.17 cm), number of spikelets spike -1 (15.24), number of grains spike -1 (44.46), spike length (10.89 cm), grain yield (2.93 t ha -1 ), straw yield (3.478 t ha -1 ) and biological yield (6.408) and harvest index (45.72%) were obtained from application of 120 kg N ha -1 . In interaction, the highest grain (3.897 t ha -1 ), straw (4.76 t ha -1 ) and biological yield (8.661 t ha -1 ) and harvest index (45.02%) were achieved from two irrigation at CRI + maximum tillering stage with application of 120 kg N ha -1 . The lowest grain yield (1.22 t ha -1 ) was achieved from one irrigation at CRI with no nitrogen application. Whereas, the lowest straw (2.13 t ha -1 ) and biological yield (3.78 t ha -1 ) were achieved from no irrigation with 60 kg N ha -1 . Based on these results it may conclude here that farmers may apply two irrigations (one at CRI and another at maximum tillering stage) with 120 kg N ha -1 to obtain the higher yield of wheat under Bangladesh context.

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Effect of soil compaction and nitrogen placement on weed population, yield and moisture use pattern of rainfed wheat

Cited by 10 publications

References 3 publications

Deep N fertilizer placement mitigated N2O emissions in a Swedish field trial with cereals

Deep N fertilizer placement mitigated N2O emissions in a Swedish field trial with cereals

Development status and trends in side-deep fertilization of rice

Influence of irrigation regimes and nitrogen fertilizer management on the performance of spring wheat in Bangladesh

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