1975年,福兴地公社在全社范围内试种了“罗马尼亚”向日葵达1600多亩,我们对大面积试种作了一些调查,根据调查结果,对今后在风砂干旱地区发展向日葵提出一些问题。 (一)为什么试种的产量不高? 1975年全公社有12个大队,46个生产队试种了油用种向日葵,其中最大的地块为110多亩,一般的地块20～30亩。由于初次大面积试 In 1975, Fuxing Commune experimented with “Romania” sunflowers at a rate of 1,600 mu in the entire community. We conducted some surveys on a large area of ​​trial planting. Based on the findings, we raised some questions about the future development of sunflowers in arid and sandy areas . (A) Why is the trial yield not high? The whole commune in 1975 there were 12 brigades, 46 production teams tried oil-sunflower species, of which the largest plot of 110 mu, the general land of 20 to 30 mu . Due to the first large area test