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地膜覆盖在提高地温、降低地表蒸发和一定程度上防除杂草上有明显效果。目前科学家们正在多方面寻找提高化肥利用效率的途径,如化肥深施、与有机肥混施、平衡施肥、分期施肥、制造缓效化肥或化肥增效剂等。本文介绍的施肥结合覆盖的方法同时解决上述两方面的问题,且其效益远在二者单独实施之上。其成功之处在于成功地解决了需水同时需肥两种矛盾。依水施肥,及时追
Mulching improves soil temperature, reduces surface evaporation and, to some extent, has significant effects on weed control. At present, scientists are looking for ways to improve the efficiency of chemical fertilizers in many ways, such as deep chemical fertilizers, compound fertilizers with organic fertilizers, balanced fertilization, staged fertilization and slow-release fertilizers or fertilizer synergists. This article describes the fertilization combined with coverage of the above two problems at the same time to solve, and its benefits far in the implementation of the two alone. Its success lies in the successful solution to the two needs of water and fertilizer contradictions. According to the water fertilization, chase in time