Sulfur and Fertilizer Use Efficiency |
Both nitrogen and sulfur improve each other’s efficiency and their combined impact on yield and nutrient recovery by crops is bigger than the sum of their individual effects. |
Sulphur interacts both synergistically and antagonistically with other nutrients. In most cases, sulfur acts synergistically with nitrogen, the most often applied nutrient. Both nitrogen and sulfur improve each other's efficiency and their combined impact on yield and nutrient recovery by crops is bigger than the sum of their individual effects. |
· Sulfur fertilizer also increased nutrient uptake and nutrient use efficiency, such as N and P. Sulfur fertilizer increased N uptake by crops over the control by 3 to 57 kg/ha for grain crops; 15 to 63 kg/ha for oil crops; 20 to 97 kg/ha for cash crops; which increased N fertilizer use efficiencies by 4% to 40%. |
· Sulfur fertilizer also increased P uptake over control by 1 to 5 kg/ha for grain and oil crops, which increased P fertilizer use efficiency by 5% to 11%. |
· The interaction of sulfur with magnesium and boron can be positive or negative but in the case of oil crops, it is more clearly evident in oil yield than in seed yield. |
· Out of the total response of groundnut to sulfur and boron application, the synergistic effect contributed 22% to the increase in kernel yield but 43% to the increase in oil yield. |
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