论文部分内容阅读
日本对虾生长速度快,宜于进行两茬养殖,加之市场价格的驱动,近3年在黄河三角洲地区其养殖得到了较快发展,规模逐年扩大。但由于受养殖技术 和其它条件的制约,养殖产量低而不稳,在较大程度上影响了这一新兴产业的健康发展。本文结合我们1998、1999两年在无棣县第
Japan shrimp fast growth, suitable for two crop cultivation, combined with market price-driven, nearly three years in the Yellow River Delta breeding has been rapid development, the scale has expanded each year. However, due to the constraints of farming techniques and other conditions, the low and unstable aquaculture production has greatly affected the healthy development of this emerging industry. This article combines our 1998, 1999 two years in Wudi County