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为探索西瓜根系生长发育情况,以指导施肥,我们于1982—1985年进行了西瓜根系调查研究。摸出了主根和侧根的分布情况,提出了施肥技术。(见表)从表分析可得以下结果:1.主根入土深度一般为35厘米左右,耕层愈深,主根入土越深。所以近几年主张瓜沟要适当挖深些,加深活土层是有道理的。根据我们的经验,沟深33厘米,沟宽30厘米为宜。一般先用铁锨挖瓜沟,深20厘米,然后沟施农家肥,再沿瓜沟两壁犁串两
To explore the root growth and development of watermelon to guide the fertilization, we conducted a watermelon root survey in 1982-1985. Out of the main root and lateral root distribution, put forward fertilization technology. (See Table) The following results can be obtained from the table analysis: 1. The depth of the main root into the soil is generally about 35 cm, the deeper the plow layer, the deeper the main root into the soil. In recent years, therefore, it is reasonable to deepen the soil layer to advocate that Guagou should be properly dug deep. According to our experience, ditch 33 cm deep, groove width of 30 cm is appropriate. The first general digging ditch with iron 瓜, 20 cm deep, and then ditch farm manure, and then along the melon ditch plow string two