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Crop yield and SOC responses to biochar application were dependent on soil texture and crop type in southern Quebec, Canada

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Changes to soil nutrient availability and increases for crop yield and soil organic C (SOC) concentration
on biochar-amended soil under temperate climate conditions have only been reported
in a few publications. The objective of this work was to determine if biochar application rates up
to 20 Mg ha–1 affect nutrient availability in soil, SOC stocks and yield of corn (Zea mays L.),
soybean (Glycine max L.), and switchgrass (Panicum virgatum L.) on two coarse-textured soils
(loamy sand, sandy clay loam) in S Quebec, Canada. Data were collected from field experiments
for a 3-y period following application of pine wood biochar at rates of 0, 10, and 20 Mg ha–1. For
corn plots, at harvest 3 y after biochar application, 20 Mg biochar ha–1 resulted in 41.2% lower
soil NHþ4 on the loamy sand; the same effect was not present on the sandy clay loam soil. On the
loamy sand, 20 Mg biochar ha–1 increased corn yields by 14.2% compared to the control 3 y after
application; the same effect was not present on the sandy clay loam soil. Biochar did not alter
yield or nutrient availability in soil on soybean or switchgrass plots on either soil type. After 3 y,
SOC concentration was 83 and 258% greater after 10 and 20 Mg ha–1 biochar applications,
respectively, than the control in sandy clay loam soil under switchgrass production. The same
effect was not present on the sandy clay loam soil. A 67% higher SOC concentration was noted
with biochar application at 20 Mg ha–1 to sandy clay loam soil under corn.

Key words: corn / maize / soybean / switchgrass / field trial / temperate

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Informasi Detail

Judul Seri

Journal Plant Nutrition Soil Science

No. Panggil

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Penerbit

Malden, USA : WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim., 2016

Deskripsi Fisik

J. Plant Nutr. Soil Sci. 2016, 179, 399–408

Bahasa

English

ISBN/ISSN

DOI: 10.1002/jpln.20

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

2016, 179

Subjek

PERTANIAN.

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

Lampiran Berkas

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