1·试验采用二次回归“3414”完全方案设计，对高桥地区圆葱植株的氮、磷、钾含量及产量进行了分析。
By using "3414" fertilizer experiment method, the contents of n, p, K and yield of onion in Gaoqiao area were comprehensively analyzed.
2·采用“3414”试验方法研究了油菜在不同氮、磷、钾肥施用量组合下，油菜产量与施肥的关系，应用回归效应方程寻找最优施肥量组合。
The relationship between yield and fertilizer application was studied by means of "3414" method under different amounts of N, P and K applied .
3·通过玉米“ 3414 ”试验，测定了石楼县小蒜乡小蒜村种植玉米的最大施肥量与最佳经济施肥量。
The experiment of corn 3414 determines the maximum fertilizing and optimum economic fertilizing of corn planting in Xiaoshuan Village of Shilou County.
4·采用“3414”肥料效应试验方案，研究了安徽省东至县油菜高产栽培的氮、磷、钾肥肥料效应，并建立了肥料效应函数模型。
Using 3414 fertilizer effect experiment, the effect of nitrogenous(N), phosphate(P), potash(K) fertilizer on rape yield in Dongzhi County was researched.