早春塑料拱棚西葫芦化瓜的原因与防止早春塑料拱棚西葫芦投资小效益高，但是，生产上化瓜现象严重，而且主要发生在结果初期，严重影响早期户量和经济效益。分析化瓜的原因主要有：一是不能正常授粉。在早春气温低、昼夜温差大的条件下，西葫芦分化的雌花过多，而雄花少甚... Early spring plastic squash squash melon causes and prevent early spring plastic arch shed zucchini small benefits, but the production of melon is serious, but mainly in the early results, a serious impact on early household volume and economic benefits. The main reasons for the analysis melon: First, not pollination. In early spring temperatures are low, the temperature difference between day and night under the conditions of zygotic differentiation of female flowers too much, while male flowers less ...