摘要
采用温室盆栽试验研究了3个不同磷(P)效率小麦品种(品系)对水溶性、构溶性和难溶性3种P肥的相对肥效。结果表明,施用各种P肥均有效增加小麦分蘖数,促进小麦生长发育和提高产量,但P肥类型以及小麦品种间表现出较大差异。相同施P量条件下,重过磷酸钙的肥效最高,其次是钙镁磷肥,而磷矿粉也表现出一定的增产效果,钙镁磷肥表现出对小麦品种间的差异最大。如施用钙镁磷肥3个品种的平均产量为15.82g/盆,其中“洛夫林”较平均产量高17.8％,“冀87-4617”较平均值低8.7％,“秦麦1号”较平均值低9.2％;重过磷酸钙处理3个品种的平均产量为17.18g/盆,其中“洛夫林”较平均值高10.4％,“冀87-4617”较平均值低2.0％,“秦麦1号”较平均值低8.0％,表现出不同P效率小麦品种间的明显差异。说明采用不同溶解性P肥可作为鉴定不同P效率小麦品种的一种验证方法。
The effect of water-soluble,citrate-soluble and hardly soluble phosphate on wheat vari-eties with various phosphorus(P) efficiencies was studied by a pot experiment under greenhouse conditions. The results indicated that,all kinds of P fertilizers supplied could improve tillering,crop growth and yield of wheat varieties,but some differences existed among P fertilizers for same vari-ety and wheat varieties for same kind of P fertilizers. At an equal amount of P fertilizers, triple phosphate was superior to calcium (magnesium)phosphate and rock phosphate compared to the control.However,calcium(magnesium) phosphate had most significant difference in grain produc-tion of wheat between “P-efficient” and “inefficient” varieties,for example,15.82g/pot of grain yield produced on the average,but 17.8% higher than the average for“Lofflin”,2.0% and 8.0% lower than it for“Ji87-4617” and “QinmaiNo.1”,respectively. A significant difference among the varieties demonstrated that citrate-solubel phosphate fertilizer could be used as an effective screen-ing method for P-efficient varieties of wheat.
出处
《生态农业研究》
CSCD
2000年第3期40-43,共4页
Chinese Journal of Eco-agriculture
基金
国家自然科学基金重大(39790100)
关键词
小麦品种
P效率
P肥类型
肥效试验
Wheat varieties,Phosphorous efficiency,Type of phosphate fertilizers
