论文部分内容阅读
在我省宁镇丘陵农区板浆白土上进行油稻轮作肥料长期定位(1985—1991)试验表明,土壤速效硼的消耗与富积均不利于油稻双高产,长期不施硼肥虽不影响水稻产量,但严重影响油菜单产提高,土壤速效硼富积影响水稻生长,使产量逐年下降,年施硼砂0.25公斤/亩可以保证油稻双增产。此外,本文还从硼量与肥效,耕层土壤速效硼与施用含硼肥料,土壤速效硼消耗,累积与平衡关系,以及1米以内土层速效硼垂直、水平运动,作物不同品种与硼素营养关系等方面进行研究,对合理施用硼肥及含硼专用肥添加量提供了依据。
Long-term positioning of paddy crop rotation fertilizer (1985-1991) on paddy clay in Ningxia hilly farming area showed that the consumption and accumulation of available boron in soil were not conducive to high double yielding of rice, while long-term boron deficiency was not applied Affecting the yield of rice, but seriously affecting the yield of rapeseed. The soil available boron enrichment affected the growth of rice and the output decreased year by year. Applying 0.25 kg / mu of borax could ensure the double yield increase of rice. In addition, this paper also from the amount of boron and fertilizer efficiency, topsoil and boron fertilizer application, soil boron consumption, accumulation and balance, as well as within 1 m of soil available boron vertical and horizontal movement, crop varieties and boron nutrition Relationship and other aspects of research, the rational use of boron and boron-containing special fertilizer to provide the basis for the amount.