Irrigation water productivity is more influenced by agronomic practice factors than by climatic factors in Hexi Corridor, Northwest China.

If is greater than N 1- α/2 , the changing trend is statistically significant at the significance level α , a positive N denotes an increasing trend while negative denotes decreasing.

also in 63,971 other papers

The contribution rate of F presented a decreasing trend, with 32.0% for Period 1, 22.5% for Period 2, and 20.0% for Period 3.

also in 47,180 other papers