Weeding-free high-yield rice method for shrimp rice field

The invention discloses a weeding-free rice high-yield method for a shrimp rice field, which comprises the following steps: step 1, after harvesting of the shrimp rice field in the previous year is completed, carrying out whole-field rotary tillage, stubble cleaning and leveling on the shrimp rice field, and ditching; in the step 2, the prawn rice field is aired and watered; in the step 3, waterweed is planted in the watered shrimp rice field; young prawns are put into the prawn rice field in the step 4; in the step 5, the lobsters are bred, and the prawn rice field is watered after being dried; in the step 6, rice seedlings are transplanted in the prawn rice field or rice seeds subjected to germination acceleration are directly sown. By means of the steps of the method, use of herbicides in the rice cultivation process can be avoided, and meanwhile the yield of rice can be remarkably increased. 本发明公开了一种虾稻田的免除草的水稻高产方法，其中包括以下步骤：步骤1中在前一年虾稻田收割完成后，对所述虾稻田进行全田旋耕灭茬整平，并进行开沟；步骤2中对虾稻田进行晒田和上水；步骤3中对上水后的虾稻田种植伊乐藻；步骤4中对虾稻田投