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| 钾对黄土区砀山酥梨产量及品质的影响 | |
| 引用本文： | 何忠俊,同延安,张国武,马路军,李小平,张广林.钾对黄土区砀山酥梨产量及品质的影响[J].果树学报,2002,19(1):8-11. |
| 作者姓名： | 何忠俊 同延安 张国武 马路军 李小平 张广林 |
| 作者单位： | 1. 西北农林科技大学资源与环境学院土壤肥料研究所,陕西,杨凌,712100 2. 陕西省礼泉县园艺站,陕西,礼泉,713206 3. 陕西省礼泉县赵镇农技站.陕西,礼泉,713200 |
| 基金项目： | 加拿大钾磷研究所北京办事处资助项目 |
| 摘 要： | 连续４年钾肥试验表明,黄土区砀山酥梨施钾平均增产１９．７%,产投比在３．０以上。钾对酥梨内质及外观有明显的改善。施钾能增加酥梨一级果率,提高可溶性固形物、可溶性糖、维生素Ｃ含量,糖酸比及果实硬度。钾能降低新梢生长量,增加百叶重及叶绿素含量,增大果实,协调果树营养生长和生殖生长的关系。此外,氯化钾有显著降低病虫果率的作用。从产量、品质、果树生长状况及经济效益综合考虑,氯化钾＋硫酸钙处理最佳。因此,酥梨应首选氯化钾,同时要补充硫素营养,Ｎ:Ｐ_２Ｏ_５:Ｋ_２Ｏ的大致比例为１:１:１。 |
| 关 键 词： | 酥梨 钾 产量 品质 黄土区 |
| 文章编号： | 1009-9980-(2002)-01-008-04 |
Effect of Potash Application on the Output and Quality of Dangshan Suli Pear Variety in Loess Area |
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| He Zhongjun,Tong Yan''''an,Zhang Guowu,Ma Lujun,Li Xiaoping,and Zhang Guanglin.Effect of Potash Application on the Output and Quality of Dangshan Suli Pear Variety in Loess Area[J].Journal of Fruit Science,2002,19(1):8-11. | |
| Authors: | He Zhongjun Tong Yan'an Zhang Guowu Ma Lujun Li Xiaoping and Zhang Guanglin |
| Abstract: | Results of 4 years' experiment showed that potash had remarkable effect on increasing output and economical ben-efit for Dangshan Suli pear variety grown on loess plateau.The yield was increased hy 8.2%~27.0%, averaged in 19.7%. Theratio of output value and fertilizer cost for all treatments with potash applied was about 3.0. Potash could improve both thefruit internal and external quality;the percent of the first class fruit,the soluble solids content,the ascorbic acid,sugar-acidi-ty ratio,and the flesh firmness all were increased by potash application.Potash application had significant influence on treegrowth vigour,the length of new shoot was decreased;the weight of 100 leaves,the content of chlorophyll and fruit volumewere increased as well;the relationship between vegetative growth and reproductive growth was coordinated by potash appli-cation.In addition,application of potash chloride showed it had some henefit for reducing the fruit damaged or infected bypests and diseases.Considering output,quality and economical henefit,as well as tree growth vigour comprehensively,KCl+CaSO4 treatment was the best.Therefore,potash chloride is the first choice of potash fertilizers for Dangshan Suli pear variety,and sulfur should be replenished simultaneously.The better rough ratio of N:P2O5:K2O should be 1:1:1. |
| Keywords: | Dangshan Suli pear variety Potash Output Quality Loess plateau |
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