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现将余干县鹭鹚港乡稻田养殖田螺技术要点介绍如下。一、稻田改造与螺种放养。 1 .养田螺稻田的选择和改造。选择水源充足、无污染、排灌方便、保水力强、土质肥沃的田块 ,排干积水 ,沿田埂四周开挖一条宽 1～ 1 .5ｍ、深 4 0～ 50ｃｍ的环形水沟。若田块面积较大 ,可挖几道工
Now Yugan County Heron fishing Hong Kong rice field farming snails technical points are as follows. First, paddy field transformation and species stocking. The Choice and Transformation of Tian Tian Lo Paddy Field. Select ample water, no pollution, convenient irrigation and drainage, strong water retention, fertile soil plots, drained stagnant water, along Tian Tian excavation of a wide 1 ~ 1.5m, deep 40 ~ 50cm annular ditch. If the larger area plots, digging a few workers