论文部分内容阅读
基于怀远县土壤养分测试结果,根据稻茬小麦需肥规律和肥料效应,提出总养分含量40%(N-P2O5-K2O=18-12-10)的小麦专用肥配方(基肥型),并由招标肥料企业按照配方生产出小麦复合专用肥。为验证该配方肥的田间使用效果,于2007-2008年度在怀远县测土配方施肥项目区进行了田间校正试验。结果表明,小麦配方施肥较常规施肥增产405 kg/hm2,增产率7.42%,增收699.20元/hm2,而且配方施肥每元肥料投入(除地力)所生产的籽粒和净增加的产值比常规施肥分别多0.34kg和0.53元。这主要与配方肥养分供应平衡,较好地协调了作物产量构成要素,最终表现为增产增收。因此,试验结果进一步表明根据测土结果和小麦需肥规律拟订的施肥配方较为科学、合理。
Based on the results of soil nutrient tests in Huaiyuan County, a wheat-specific fertilizer formula (basal fertilizer type) with a total nutrient content of 40% (N-P2O5-K2O = 18-12-10) was proposed according to the rule of wheat requirement and fertilizer effect on rice stubble. Tender fertilizer companies in accordance with the formula to produce wheat compound fertilizer. In order to verify the field effect of the formula fertilizer, a field calibration test was conducted in 2007-2008 in the soil testing and fertilizer program area of Huaiyuan County. The results showed that wheat formula fertilization increased yield 405 kg / hm2, increased yield 7.42%, and increased income 699.20 yuan / hm2 compared with conventional fertilization. Moreover, the grain yield and net increase of output per unit fertilizer input (excluding soil fertility) More than 0.34kg and 0.53 yuan. This is mainly balanced with the supply of fertilizer and formula fertilizer, better coordinate crop yield components, the final performance of increased production. Therefore, the test results further indicate that the fertilization formula formulated according to the results of soil testing and the rule of wheat requirement is more scientific and reasonable.