摘要
探讨了免耕抛栽水稻测土配方施肥与不施肥和常规施肥对比的效果。结果表明,测土配方施肥处理的水稻产量比不施肥和常规施肥的分别高106.23%和10.28%;处理间产量差异显著。测土配方施肥的有效穗、株高、穗长、穗粒数、实粒数、结实率均显著高于不施肥;除株高外,其余性状与常规施肥无显著差异。测土配方施肥的分蘖发生趋势与常规施肥一致,两者的分蘖发生数均高于对照。测土配方施肥比不施肥增效4396元/hm2,比常规施肥增效730元/hm2;而常规施肥比不施肥增效3666元/hm2。免耕抛栽水稻测土配方施肥,其产量对土壤养分的依存率为43.97%,与目标产量的吻合度为106.15%。
To investigate effects of formula fertilization by soil testing on rice with no-tillage seedling-broadcast, a single factor experiment with random block design and three treatments of non-fertilizer （CK）, regular fertilization and formula fertilization by soil testing and were conducted. The yield in the plots with formula fertilization by soil testing was the best of three plots, increasing 106. 23% and 10. 28% than CK and the regular plot, respectively. The panicle, plant height, ear length, number of grains and seed set in the plots with formula fertilization were significant- ly higher than CK, but not significantly different from those with regular fertilization except plant height. The tillering ability in the formula fertilization plots and the regular fertilization plots were stronger than CK, with more tillers and earlier tillering. The net income of the formula fertilization plots was 4396 yuan/hm2 more than CK,and 731 yuan/ hm^2 more than that with regular fertilization. The depending rate of yield of no-tillage seedling-broadcast rice on soil nutrients was 43.97%. The identical degree between the expected yield and actual yield for formula fertilization by soil testing reached to 106. 15%.
出处
《作物杂志》
CAS
CSCD
北大核心
2008年第4期46-49,共4页
Crops
基金
广西农业职业技术学院专业带头人专项经费资助(桂农职院发[2005]55号)
关键词
免耕抛栽
水稻
测土配方施肥
No-tillage seedling-broadcast
Rice
Formula fertilization by soil testing
