樱桃番茄滴灌专用肥配方选择及吸肥规律

SELECTION OF SPECIAL FERTIGATION FERTILIZER FORMULAS AND STUDY ON RULE OF CHERRY TOMATO'S ABSORBING FERTILIZER

将研制的三个滴灌专用肥配方应用到樱桃番茄上,经田间配方选择和吸肥规律验证,结果表明,在等氮量条件下,N、P2O5、K2O比例为1.0∶1.0∶1.5的3号配方施用效果最好,增产52.7％,经济投产比为1∶3.9。N、P2O5、K2O比例为1.0∶1.0∶1.0的1号配方和N、P2O5、K2O比例为1.0∶1.0∶2.0的2号配方施用效果其次,分别增产36.4％和47.3％,经济投产比分别为1∶3.4和1∶3.3。使用上述配方可使果实Vc含量提高8.6％,且能增强作物对低温冻害的抵抗能力。樱桃番茄的吸肥规律图验证了试验结论的正确性。

Three fertilizer formulas prepared specially for fertigation were applied to cherry tomato. The experimental results showed that under the same amount of nitrogen, the effect of No. 3 formula whose ratio N:P2O5 : K2O was 1.0:1.0:1.5 was the best,the tomato yield increased by 52.7% ,and the ratio of investment to income was 1:3.9;No. 1 formula whose ratio N: P2O5 :K2O was 1.0:1.0:1.0 and No. 2 formula whose ratio N : P2 O5: K2 O was 1.0:1.0:2.0 also made the yield increase by 36.4 % and 47.3 % respectively, and their ratios of investment to in come were 1. 0 : 3. 4 and 1. 0 : 3. 3 respectively; applying above-mentioned formulas made Vc content in the fruit increase by 8.6% and also improved cold resistance of the crop. The rule of cherry tomato's absorbing fertilizer verified the correctness of the experimental conclusion.