| 聚磷酸磷肥不同基追比对石灰性土壤上滴灌盆栽棉花生长的影响 |
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| 引用本文： | 马林,夏晓阳,普正仙,王芳,王祥斌,刘烨东,吕海丽,王雨欣,蒲巧铃,危常州,张新疆.聚磷酸磷肥不同基追比对石灰性土壤上滴灌盆栽棉花生长的影响[J].植物营养与肥料学报,2022,28(5):946-952. |
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| 作者姓名： | 马林 夏晓阳 普正仙 王芳 王祥斌 刘烨东 吕海丽 王雨欣 蒲巧铃 危常州 张新疆 |
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| 作者单位： | 1.石河子大学农学院农业资源与环境系，新疆石河子 832003 |
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| 基金项目： | 企业横向课题(YTHZWYJY2020001)；石河子大学高层次人才科研启动项目(RCZK201946)；石河子大学大学生研究训练计划(SRP)项目(srp2020012，srp2021041)。 |
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| 摘 要： | 【目的】 研究了3种聚磷酸磷肥不同施用技术对石灰性土壤滴灌棉花生长和磷肥利用率的影响，为石灰性土壤上聚磷酸磷肥在滴灌棉花的合理施用提供理论支撑。 【方法】 以棉花为供试材料进行了滴灌盆栽试验。用聚合度为2.3、1.8的聚磷酸铵和聚合度为3.0的聚磷酸钾分别与常规磷酸二铵混合，得到3种含聚磷酸的掺混磷肥，依次表示为APP1、APP2和KTPP，掺混磷肥中3%的P2O5来自聚磷酸磷肥。在施磷量均为P2O5 0.2 g/kg土壤前提下，每个掺混磷肥设基追比7∶3 (F7∶3)，1∶1 (F1∶1)和3∶7 (F3∶7) 3个处理，同时设置不施磷肥对照(CK)，共10个处理。棉花出苗后110 天收获，测定植株地上部与地下部生物量和含磷量，同时分别测定0—8和8—16 cm土层土壤有效磷含量。 【结果】 3种供试聚磷酸磷肥在0—8 cm土层土壤有效磷含量均以F7∶3处理显著低于F1∶1和F3∶7处理，8—16 cm土层土壤有效磷含量3个施用比例处理间无显著性差异。在F7∶3处理下，0—8 cm土层土壤有效磷含量以KTPP处理显著高于APP1和APP2。在F1∶1和F3∶7处理下，0—8和8—16 cm土层土壤有效磷含量均为KTPP和APP1显著高于APP2。F1∶1处理棉花地上部、地下部生物量均高于F7∶3和F3∶7处理。F1∶1处理棉花结铃数最高，F3∶7处理最低。F1∶1处理下，KTPP和APP1棉花结铃数无显著差异，但均显著高于APP2。F7∶3和F1∶1处理棉花地上部吸磷量和磷肥利用效率均显著高于F3∶7处理。在F1∶1和F3∶7基追比处理下，棉花地上部吸磷量和磷肥利用效率均表现为KTPP显著高于APP2，而APP1处于两者间。 【结论】 3种不同聚磷酸磷肥在石灰性土壤上对棉花的肥效表现为聚磷酸钾最优，其次为聚合度为2.3的聚磷酸铵，聚合度为1.8的聚磷酸铵效果略差。3种聚磷酸磷肥均以基追比1∶1施用棉花生物量积累和棉花磷肥利用率的效果最好。
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| 关 键 词： | 聚磷酸磷肥 基追比 滴灌棉花 磷肥利用率 |
| 收稿时间： | 2021-08-13 |
Effects of different basal-top dressing ratios of polyphosphate fertilizers on the growth of potted cotton under drip irrigation in calcareous soil |
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| MA Lin,XIA Xiao-yang,PU Zheng-xian,WANG Fang,WANG Xiang-bin,LIU Ye-dong,Lü Hai-li,WANG Yu-xin,PU Qiao-ling,WEI Chang-zhou,ZHANG Xin-jiang.Effects of different basal-top dressing ratios of polyphosphate fertilizers on the growth of potted cotton under drip irrigation in calcareous soil[J].Plant Nutrition and Fertilizer Science,2022,28(5):946-952. |
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| Authors: | MA Lin XIA Xiao-yang PU Zheng-xian WANG Fang WANG Xiang-bin LIU Ye-dong Lü Hai-li WANG Yu-xin PU Qiao-ling WEI Chang-zhou ZHANG Xin-jiang |
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| Institution: | 1.Department of Agricultural Resources and Environment, College of Agriculture, Shihezi University, Shihezi, Xinjiang 832003, China |
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| Abstract: | 【Objectives】 The effects of three kinds of polyphosphate fertilizer on the growth and phosphorus utilization efficiency of drip-irrigated cotton in calcareous soil was investigated in a pot experiment to expand the pool of knowledge on efficient nutrient management in cotton production. 【Methods】 Ammonium phosphate with degrees of polymerization of 2.3, 1.8 and potassium tripolyphosphate with degree of polymerization of 3.0 were individually mixed with conventional diammonium phosphate, respectively to obtain three kinds of mixed polyphosphate fertilizers, and expressed as APP1, APP2, KTPP. 3% of the P2O5 in mixed phosphate fertilizer was provided by polyphosphate fertilizers. The amount of P application was P2O5 0.2 g/kg, each mixed polyphosphate fertilizer was applied as three basal-top dressing ratios of 7∶3 (F7∶3), 1∶1 (F1∶1) and 3∶7 (F3∶7), and the control without phosphate fertilizer (CK). The plants of cotton were harvested at 110 days after emergence, and the dry weight and total phosphorus contents of shoot and root parts of cotton were measured. The soil available phosphorus contents at 0–8 cm and 8–16 cm depth were measured respectively. 【Results】 The soil available P of F7∶3 treatment was significantly lower than those of F1∶1 and F3∶7 at 0–8 cm depth but at 8–16 cm, the soil available P obtained from F7∶3, F1∶1, and F3∶7 treatments were similar. Under F7∶3, the soil available P content of KTPP treatment was significantly higher than APP1 and APP2 treatment at 0–8 cm depth, whereas it was higher under KTPP and APP1 than APP2 when treated with F1∶1 and F3∶7 at both soil depths. The shoot dry weight and root dry weight of cotton treated with F1∶1 were significantly higher than those from F7∶3 and F3∶7. The boll number of cotton in F1∶1 was the highest and that in F3∶7 was the lowest. Under F1∶1 treatment, numbers of cotton boll from KTPP and APP1 were significantly higher than that of APP2. The shoot P uptake and P utilization efficiency of F7∶3 and F1∶1 were significantly higher than that of F3∶7. Under F1∶1 and F7∶3 of phosphate basal-topdressing treatments, the shoot phosphorus uptake and phosphorus utilization efficiency of cotton were KTPP>APP1>APP2. 【Conclusions】 In calcareous soils, the best effect of polyphosphate fertilizer on cotton was obtained from KTPP, followed by APP1 then APP2. Among the three kinds of polyphosphate fertilizers, the application of basal-top dressing ratio at 1∶1 had the best effect on cotton biomass accumulation and P utilization efficiency. |
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