Received: 25-02-2020
Accepted: 31-12-2020
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Effects of some Intercropings with Maize on soil characters and maize yield planted on the Sandy Soil in Nghe An Province
Keywords
Coastal sandy soil; maize intercropping
Abstract
Drought and moisture deficiency in crop cultivation on the coastal sandy soil in Nghe An province have occurred frequently in the late spring crop. Mono-culture is a factor that influences increasing soil temperature and water evaporation and nutrient losses than intercropping. Therefore, the objective of this study was to assess the impact of intercropping maize on the temperature, humidity, nutrition, yield of maize on sandy soil in Nghe An province. The experiments were conducted in two seasons of 2015 and 2016 in a randomized complete block design (RCBD) with 5 formulas: KX (No intercropping), NL (Maize-Peanut), NĐ (Maize- Black Bean), NX (Maize-Green Bean), NK (Maize-Sweet Potato). The results showed that intercropping between maize and other crops significantly influenced temperature, humidity, soil nutrient and yield. Soil moisture content in intercropping plots was constantly higher, whereas soil temperature was lower than those in a single maize plot. Soil nutrient indicators tended to increase after the experiment and gave the highest value in the NĐ plot. The highest yield of maize in the formula NĐ was 4.962 ton/ha in spring crop 2015 and was 4.831 ton/ha in spring crop 2016, the remained intercropping plots were perpetually higher than the single maize plot (P0.05).
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