Effects of Incorporation of Green Manure Crops on the Growth of Watermelonand Soil Nitrate Nitrogen Concentration

Lim, Tae-Jun; Park, Jin-Myeon; Le, Seong-Eun

doi:10.5338/kjea.2018.37.1.06

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“…Year † Fresh weight Dry weight N content N application rates -------------------------Mg ha -1 -------------------------g kg -1 kg ha (Binford and Hansen, 2000;Hartz et al, 2000;Heckman et al, 2002). 예로 단옥수 수, 딸기, 수박에서 토양 중의 질산태 질소가 각각 25, 25-40, 40 mg kg -1 의 수준으로 존재해도 최대수량을 얻을 수 있 으며 (Heckman et al, 1995;Lim et al, 2016;Lim et al, 2018)…”

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Estimation of Nitrogen Fertilizer Recommendations for cucumber by Soil Incorporation of Rye Based on Soil Nitrate Nitrogen Content

Lim

Park

Lee

2018

Korean J. Soil. Sci. Fert.

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In this study, we estimated the appropriate nitrogen (N) recommendations of cucumber by evaluating the effects of soil incorporation of rye (Secale cereal L.) as a green manure crops on the growth and yield of cucumber under the greenhouse condition showing two different soil nitrate N levels. One, soil nitrate-N content before the experiment was 60 mg kg -1 , carried out in 2012 and the other showing a 227 mg kg -1 level was conducted in 2013. Six different N treatments were used as follows: No N fertilizer, rye, rye with urea 0.5 N, 0.75 N, and 1.0 N, and urea 1.0 N. The amount of N supply from soil incorporation of rye was 146 kg ha -1 in 2012 and 107 kg ha -1 in 2013. When soil nitrate N content before the experiment was 60 mg kg -1 , the growth and yield of cucumber did not differ between the rye + urea 0.5 N and the urea 1.0 N, which can reduce 50% of N fertilizer recommendation. In case of soil nitrate N content before the experiment was 227 mg kg -1 or beyond, no N fertilization can be recommended because there were no significant differences in the growth and yield of cucumber among all treatments including the rye. Lastly, when soil nitrate N content before the experiment was within range of 227 -60 mg kg -1 , N recommendations can be calculated through the equation Y = -3.34X + 227 (X: % of N recommendations, Y: soil nitrate N content). However, further studies on the relationship between soil nitrate N content and yield of cucumber are required.

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“…1). 이러한 이유는 식물로의 질소 양분흡수에 의한 영향과 더불어서 충분한 관수를 함으로써 질산태 질소가 작토층 아래로 일부 이동하였기 때문으로 판단되었다 (Leeet al, , Lim et al, 2018.…”

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Estimation of Nitrogen Fertilizer Recommendations for cucumber by Soil Incorporation of Rye Based on Soil Nitrate Nitrogen Content

Lim

Park

Lee

2018

Korean J. Soil. Sci. Fert.

Self Cite

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show abstract

Effects of Incorporation of Green Manure Crops on the Growth of Watermelonand Soil Nitrate Nitrogen Concentration

Cited by 1 publication

References 13 publications

Estimation of Nitrogen Fertilizer Recommendations for cucumber by Soil Incorporation of Rye Based on Soil Nitrate Nitrogen Content

Estimation of Nitrogen Fertilizer Recommendations for cucumber by Soil Incorporation of Rye Based on Soil Nitrate Nitrogen Content

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