MA Bo.Study on Optimization of Fertilizer and Density of Salinealkali Tolerant Rice Varieties Under Moderate Salinealkali Conditions[J].HEILONGJIANG AGRICULTURAL SCIENCES,2015,(03):9-11.[doi:10.11942/j.issn1002-2767.2015.03.0009]
耐盐碱水稻品种在中度盐碱条件下高产肥密优化研究
- Title:
- Study on Optimization of Fertilizer and Density of Salinealkali Tolerant Rice Varieties Under Moderate Salinealkali Conditions
- 文章编号:
- 10022767（2015）03000903
- Keywords:
- rice; salinealkali tolerance; fertilizer and density; regression equation; optimal scheme
- 分类号:
- S511
- 文献标志码:
- A
- 摘要:
- 为了优化盐碱地水稻栽培措施，采用二次回归通用旋转组合设计，在中度盐碱地条件下，研究了不同密度、氮肥和钾肥用量对寒地耐盐碱水稻品种产量的影响。结果表明：密度对产量的影响最大。相关性分析结果表明：单位面积穗数与两个品种产量均呈极显著正相关且绝对值最大（r=0.835**，r=0.912**），可见在盐碱环境下应加大种植密度。因此对频数分析法获得的方案进行调整，最终建立最优方案绥粳5号：密度30.5～32.5穴?m2、施氮量103.2～131.1 kg?hm2、施钾量75.0～96.4 kg?hm2；龙粳21：密度31.5～33.8穴?m2、施氮量116.3～153.2 kg?hm2、施钾量77.2～94.1 kg?hm2。
- Abstract:
- In order to optimize rice cultivation measures of salinealkali land，under moderate salinealkali conditions,the effect of different amounts of N,K and density on yield of salinealkali tolerant rice varieties in cold region was studied with quadratic general rotatory combination design.The results showed that the effect of density on the yield was the most important role.The results of correlation analysis indicated that there were significant positive correlations between panicle number per unit area and yield of two varieties,and the absolute value was the maximum(r=0.835**，r=0.912**).Therefore planting density should be increased under saline alkali conditions.At the same time,the experiments obtained the optimum planting scheme on the yield by frequency analysis.Longing 21 mode was that density 30.5~32.5 points?m2,applied N 103.2~131.1 kg?hm2,K2O 75.0~96.4 kg?hm2.Suijing 5 mode was that density 31.5~33.8 points?m2,applied N 116.3~153.2 kg?hm2and K2O 77.2~94.1 kg?hm2.
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备注/Memo
省长基金资助项目（2009HSJA3）马波（1982-），男，回族，黑龙江省齐齐哈尔市人，博士，助理研究员，从事水稻育种及栽培研究。E-mail：mabo8210@163.com。