化肥农药在农业生产中的广泛应用在给人们带来巨大效益的同时也产生了许多不可忽视的负面效应。由于种种原因在化肥、农药用量越来越大的同时,其对土壤的破坏,对环境的恶化,作物品质下降以及对人类健康的危害也日趋严重。因此提高化肥农药利用效率。大幅度减少其用量,是净化环境,发展高效绿色农业的一条重要途径,也是新世纪国 The widespread application of chemical fertilizers in agricultural production has brought many great benefits to people and also produced many negative effects that can not be ignored. Due to various reasons, with the increasing use of chemical fertilizers and pesticides, the damage to the soil, the deterioration of the environment, the decline of crop quality and the harm to human health have also become increasingly serious. Therefore, improve the efficiency of chemical fertilizer use. A substantial reduction of its use is an important way to purify the environment and develop efficient green agriculture. It is also a new century