Effects of Two Plant Arrangements in Corn (Zea Mays L.) And Soybean (Glycine Max L. Merrill) Intercropping on Soil Nitrogen and Phosphorus Status and Growth of Component Crops at an Argentinean Argiudoll
American Journal of Agriculture and Forestry
Volume 1, Issue 2, July 2013, Pages: 22-31
Received: Jun. 4, 2013; Published: Jul. 10, 2013
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Ciarlo Esteban Ariel, Chair of Edafology, Agronomy College of Buenos Aires University, Av. San Martín 4453 (CP: 1417), C.A.B.A., Argentina
Ostolaza Antonio Eduardo, Chair of Edafology, Agronomy College of Buenos Aires University, Av. San Martín 4453 (CP: 1417), C.A.B.A., Argentina
Giardina Ernesto Benito, Chair of Edafology, Agronomy College of Buenos Aires University, Av. San Martín 4453 (CP: 1417), C.A.B.A., Argentina
Giuffré Lidia, Chair of Edafology, Agronomy College of Buenos Aires University, Av. San Martín 4453 (CP: 1417), C.A.B.A., Argentina
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Intercropping systems can provide many benefits through increased efficiency of land and light use. The objectives of this study were to assess the main effects on a soil and plant growth of two arrangements of corn - soybean intercropping. In a 1-year experiment at 2011, the following treatments were randomly assigned in a CRD to 16 plots located on a vertic Argiudoll from Argentina: sole corn (Zea mays L.), sole soybean (Glycine max L.), corn-soybean 1:1 intercropping and corn-soybean 1:2 intercropping. Nitrate levels were modified by treatments, but these treatments did not affect available P contents due to very high levels of this element during the whole cropping cycles. The practice of intercropping did not enhance water uptake by crops in relation to sole crops, as might be expected from complementary root systems and de-velopment timelines. Corn N status improved with intercropping probably due to an enhanced growth of plants and their roots, but soybean chlorophyll content was decreased by intercropping treatments. Yield and growth of corn were stimulated by intercropping systems, but this system depressed soybean growth, particularly at 1:1 corn-soybean ratio. Based on the re-markable dominance of corn crop observed at this arrangement, it can be concluded that a 1:2 corn-soybean ratio could be more beneficial in terms of more symmetric ecological interactions.
Corn, Soybean, Intercropping, Soil, Yield
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Ciarlo Esteban Ariel, Ostolaza Antonio Eduardo, Giardina Ernesto Benito, Giuffré Lidia, Effects of Two Plant Arrangements in Corn (Zea Mays L.) And Soybean (Glycine Max L. Merrill) Intercropping on Soil Nitrogen and Phosphorus Status and Growth of Component Crops at an Argentinean Argiudoll, American Journal of Agriculture and Forestry. Vol. 1, No. 2, 2013, pp. 22-31. doi: 10.11648/j.ajaf.20130102.11
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