摘要
在膜下滴灌条件下,以粳稻品种T-43为材料,研究了水溶性磷肥施用量对水稻生长发育及产量的影响。结果表明,在施磷量(P2O5)0~156 kg/hm^2范围内,水稻的株高、叶片数随着施磷量增加而上升;以施磷量130kg/hm^2处理的有效分蘖数、有效穗数、穗长、主茎实粒数、分蘖实粒数、千粒重和产量最高;当施磷量达到156kg/hm^2时,有效分蘖数及产量构成因素则呈下降趋势。说明膜下滴灌水稻水溶性磷肥施用有其适宜值,过量施用不仅低产低效,还可能增加土壤环境污染。
The effects of water-soluble phosphorus fertilizer on rice growth and yield were studied under mulch-film drip irrigation with T-43,a Japonica Rice variety,as material.The results showed that the plant height and leaf number of rice increased with the increase of phosphorus application in the range of 0-156 kg/hm^2.The effective tillers,panicles,panicle length,main stem grain number,tiller grain number,1000-grain weight and yield of rice treated with 130 kg/hm^2 phosphorus application were the highest.When phosphorus application reached 156 kg/hm^2,effective tillering and related yield components showed a downward trend.The results showed that the application of water-soluble phosphate fertilizer in drip irrigation under mulch had its proper value.Excessive application not only resulted in low yield and low efficiency,but also increased soil environmental pollution.
作者
银永安
黄东
贾世疆
李丽
朱江艳
赵双玲
韩品
YIN Yongan;HUANG Dong;JIA Shijiang;LI Li;ZHU Jiangyan;ZHAO Shuangling;HAN Pin(Xinjiang Tianye Group Ltd.,Shihezi Xinjiang 832000,China)
出处
《作物研究》
2020年第2期116-118,136,共4页
Crop Research
基金
中国博士后科学基金(2018M633657XB)
新疆兵团中青年科技创新领军人才计划(2017CB006)。
关键词
水稻
栽培
膜下滴灌
磷
rice
cultivation
drip irrigation under mulch film
phosphorus
