摘要
本研究选用当地几种有代表性的化肥在冬小麦上进行了肥效试验。结果表明:在等N等P条件下,施用磷酸二铵比施用普钙+尿素增产增收效果明显,能培肥地力,增加土壤有效养分。施用“六国牌”铜陵产磷酸二铵与施用美国进口磷酸二铵比较,小麦产增差异不明显,但国产磷酸二铵价格较低,增收效果明显。在铜陵产磷酸二铵中添加微量元素B对小麦增产效果不显著,但添加微量元素B和Zn对小麦增产效果明显。
The results indicated that with equal N and P, there was no significant differencein increasing wheat yield between demostic phosphate dioamnoin and imported phosphatedioamnion application. But the economic benefit and effect was better with demonicphosphate dioamnoin because of its lower price. Additional micronutrients could obviouslyincrease wheat yield and there was significant difference between phosphate dioamnion andpopular phosphate calcium.
