论文部分内容阅读
从1994年早稻生产开始．在滨海稻区开展水稻施锌技术研究，三年试验结果表明，施锌能防止水稻苗期发僵，改善其经济性状,提高单产。凡土壤有效锌含量低于1.0mgkg-1田块都应施锌。亩施锌量1．5－2．0kg为宜。增产幅度在7．0％以上。增产效果早稻好于晚稻，秧田好于大田。因锌肥有后效性，一般应隔季或隔年施用。
Since 1994, early rice production began. In the coastal rice area to carry out research on rice zinc technology, three years test results show that zinc can prevent rice seedling stiff, improve their economic traits, increase yield. Where soil available zinc content below 1.0mgkg-1 fields should be applied zinc. The amount of zinc 1.5-2.0kg mu appropriate. Increase rate of more than 7.0%. Yield improvement Early rice is better than late rice, seedling field is better than the field. After zinc due to the effectiveness of the general should be applied quarterly or every other year.