Nutrient management and balanced fertilization in Inner Mongolia

IPNI-2006-CHN-NM1

Nutrient Management and Balanced Fertilization in Inner Mongolia, 2012 Balanced fertilization trials were conducted in irrigated potato, oil sunflower and irrigated maize in Inner Mongolia to demonstrate yield response, nutrient use efficiency and economic benefit with balanced fertilization. Read more


Year of initiation:2006
Year of completion:2011

Interpretive Summary

Nutrient Management and Balanced Fertilization in Inner Mongolia, 2012 Balanced fertilization trials were conducted in irrigated potato, oil sunflower and irrigated maize in Inner Mongolia to demonstrate yield response, nutrient use efficiency and economic benefit with balanced fertilization.

Nutrient Management and Balanced Fertilization in Inner Mongolia, 2011 Field trials were conducted on irrigated/rainfed potato, sunflower, and maize to demonstrate: (1) yield responses to balanced fertilization, and (2) effect of nutrient management under rain collecting or irrigation on crop yield and nutrient use efficiency. In flood irrigated potato in Wuchuan County, application of 240-90-165 kg N-P2O5-K2O/ha produced 44.

Nutrient Management and Balanced Fertilization in Inner Mongolia, 2010 Field experiments were conducted on irrigated potato, oil sunflower, and maize to document yield responses to applied nutrients, water management, and nutrient accumulation. In flood-irrigated potato in Wuchuan County, application of 240-90-165 kg N-P2O5-K2O/ha produced 37. 5 t/ha, which was 33%, 17%, and 24% more than the N, P, and K omission plots, respectively. A similar sprinkler-irrigated trial produced 60.

Nutrient Management and Balanced Fertilization in Inner Mongolia, 2009 Field experiments were conducted on rainfed and irrigated potato, oil sunflower, and rapeseed to document nutrient accumulation and yield response. In flood-irrigated potato at Wuchuan County, application of 210-90-165 kg N-P2O5-K2O/ha produced 19. 1%, 11. 6%, and 4. 0% more tuber yield over N, P, and K omission plots, respectively. A similar potato trial in Chayouzhong Qi was more responsive and produced 32. 9%, 37. 4%, and 35.

Nutrient Management and Balanced Fertilization in Inner Mongolia, 2008 Field experiments were conducted on potato, sunflower, and rapeseed to document yield responses to applied nutrients, and clarify the principles of biomass and nutrient accumulation and nutrient use efficiency in these prominent crops of Inner Mongolia. In rainfed potato in Wuchuan County, application of 105-60-90 kg N-P2O5-K2O/ha proved most effective with significant yield improvements over nutrient omission treatments.

Nutrient Management and Balanced Fertilization in Inner Mongolia, 2007 Demonstrations using 30 t organic manure and 150-60-45 kg N-P2O5-K2O/ha in four potato fields provided for yield increases between 5 to 17% and an average improvement in farm income of US$241/ha compared to the farmer practice (FP) which omitted K. Field experiments on irrigated potato in Wuchuan County indicated that balanced NPK use of 180-60-120 kg N-P2O5-K2O/ha produced 6. 8, 5. 7, and 4.

Nutrient Management and Balanced Fertilization in Main Crops in Inner Mongolia, 2006 Work in 2006 involved investigating the impact of improved nutrient management within a monitored village. Yield and quality responses to K or P were examined within the region’s major crops including potato, forage corn, rapeseed, and forage grasses.

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