【摘 要】
：
近几年来,在各级政府、部门的大力协助下,各地农村掀起了大规模的开荒造田热潮。棉花作为一种抗旱耐瘠作物,成为这些新垦耕地的主要种植作物。但由于这些地块大都表现有机质
【机 构】
：
河北省农科院棉花所,河北省农科院棉花所,
论文部分内容阅读
近几年来,在各级政府、部门的大力协助下,各地农村掀起了大规模的开荒造田热潮。棉花作为一种抗旱耐瘠作物,成为这些新垦耕地的主要种植作物。但由于这些地块大都表现有机质含量低、缺磷少氮、氮磷比例失调,因而严重影响着棉花产量的提高,故应迅速提高这些田块的肥力。
In recent years, with the vigorous assistance of governments at all levels and departments, there has been a massive upsurge of land reclamation in rural areas throughout the country. As a drought-resistant barren crop, cotton has become the main crop for these newly harvested cultivated land. However, since most of these plots have low contents of organic matter, less phosphorus and less nitrogen, and have a disproportionate proportion of nitrogen and phosphorus, they seriously affect the yield increase of cotton. Therefore, the fertility of these plots should be rapidly increased.
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