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我們在1965年覌察,秧田每亩施50~70斤过磷酸鈣每亩可增产稻谷61.6~76.8斤。且适宜浅施,在最后一次耙平田面时撒施,然后再平整田面。
We observed in 1965, seedling 50 ~ 70 kg per acre SSP per acre can increase 61.6 ~ 76.8 kg of rice. And appropriate shallow facilities, in the last raked flat cast when applied, and then flattened the surface.