水稻对氯的忍耐力大于小麦。氯在各处理中的残留量为1％左右。大田中施用675kg/haNH_4Cl,配合适量磷肥不会造成危害。N、P、Cl对稻麦的穗长、穗数、千粒重无明显影响,对株高、鲜重、空壳率有显著的相关。在中、高量氯(1500～2000ppm)时,株高、鲜重明显降低,且有增加水稻空壳率的趋势;但提高P的浓度,空壳率又有所下降。因此,含氯化肥,特别是在缺磷的土壤上必须配施磷肥。植株茎叶中的N、P、K、Cl含量差异甚大,但最后转移进入籽粒的量都较接近。高量氯严重降低产量,但对品质无明显影响。稻麦收获后,土壤中N、P、Cl残留量与施入量有一定的相关性;但各元素不尽相同。 Rice is more tolerant of chlorine than wheat. The residual amount of chlorine in each treatment is about 1%. Field application of 675kg / haNH_4Cl, with an appropriate amount of phosphate fertilizer will not cause harm. N, P, Cl had no significant effect on the spike length, spike number and 1000-grain weight of rice and wheat, but had significant correlation with plant height, fresh weight and shell percentage. The plant height and fresh weight decreased obviously when medium and high levels of chlorine (1500 ~ 2000ppm) were present, and there was a tendency of increasing the empty shell rate of rice. However, with the increase of P concentration, the empty shell rate decreased again. Therefore, chlorinated fertilizers, especially in the phosphorus-deficient soil must be allocated phosphate fertilizer. The contents of N, P, K and Cl in plant stems and leaves varied greatly, but the amount of N, P, K and Cl which were transferred into the kernels were all close. High levels of chlorine severely reduce production but have no significant effect on quality. After harvesting rice and wheat, the residual amount of N, P and Cl in soil had a certain correlation with the application amount; however, the elements were different.