| 刘群,王忆,张新忠,韩振海.PAM保水剂及纳米蒙脱土对果园生草地上部生物量的影响[J].干旱地区农业研究,2012,30(6):168~173 |
| PAM保水剂及纳米蒙脱土对果园生草地上部生物量的影响 |
| Effect of PAM aquasorbent and nano-montmorillonite on theaboveground biomass of planting herbage in orchard |
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| DOI：10.7606/j.issn.1000-7601.2012.06.29 |
| 中文关键词: PAM保水剂 纳米蒙脱土 地上部生物量 果园 |
| 英文关键词:PAM aquasorbent nano-montmorillonite aboveground biomass orchard |
| 基金项目:北京市科委课题(Z090605006009010)；现代农业产业技术苹果体系(CARS-28) |
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| 中文摘要: |
| 为了实现果园生草节水效果,采用田间试验方法,研究了半量和常规灌溉条件下,不同用量的PAM保水剂(0,4,8,12 g/m2)和不同用量纳米蒙脱土(0,150,300,450 g/m2)对不同草(紫花苜蓿,黑麦草,白三叶)地上部总生物量的影响。结果表明,半量灌溉条件下,施用PAM保水剂可显著增加3种草的地上部总生物量,适宜剂量为8 g/m2,而常规灌溉条件下,不宜施用PAM保水剂。施用纳米蒙脱土可增加3种草的地上部总生物量,半量灌溉条件下,适宜剂量为150 g/m2,常规灌溉条件下,对于紫花苜蓿和黑麦草,适宜剂量为450 g/m2,对于白三叶,适宜剂量为300 g/m2。 |
| 英文摘要: |
| With the water-saving purpose of orchard grass, a field experiment was conducted to study the effect of different amount of PAM aquasorbent(0, 4, 8 g/m2 and 12 g/m2)and different amount of nano-montmorillonite(0, 150, 300 g/m2 and 450 g/m2)o n the aboveground biomass of different kinds of grass(Alfalfa, Ryegrass, White Clover). The results indicate that under 50% usual irrigation quantity condition, the use of PAM aquasorbent can significantly in-crease the total aboveground biomass of the three kind of grasses and the suitable amount is 8 g/m2, while under the usu-al irrigation quantity condition, PAM aquasorbent should not be applied. The nano-montmorillonite is good for the in-crease of the total aboveground biomass, when the irrigation quantity was 50% of the usual irrigation quantity. The appropriate amount for the three kinds of grass is 150 g/m2, under the usual irrigation quantity, different kinds of grass need different amount, and 300 g/m2 is appropriate for White Clover, as for Alfalfa and Ryegrass, the amount of 450 g/m2 is suitable. |
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