论文部分内容阅读
通过田间试验,研究河西绿洲灌区玉米与绿肥间作模式对作物产量和经济效益的影响。结果表明,3行玉米间作2行针叶豌豆时的玉米生物产量和籽粒产量均为最高,分别高于对应的不间作绿肥处理0.2%和0.95%,但差异不显著。2行玉米间作3行毛苕子时的绿肥干草产量最高,2年的平均产量为3 901kg·hm-2,显著高于其它处理。2行玉米间作3行针叶豌豆时的绿肥豆类籽粒产量最高,2年的平均产量为2 225 kg·hm-2,同样显著高于其它处理。3行玉米间作3行针叶豌豆时的经济效益最高,为35 038元·hm-2,比2行玉米不间作绿肥处理每公顷增值7 848元,增收28.86%,比3行玉米不间作绿肥处理每公顷增值5 853元,增收20.05%。因此,在河西绿洲灌区进行玉米种植时,若以收获玉米籽粒为主,则适宜采用3行玉米间作2行针叶豌豆种植模式;若以经济效益为主,则适宜采用3行玉米间作3行针叶豌豆的种植模式。
Field experiments were conducted to study the effects of intercropping corn and green manure on crop yield and economic efficiency in Hexi Oasis irrigated area. The results showed that the maize biomass and grain yield were the highest when intercropped with 3 rows of corn and 2 rows of needle pea, respectively, which were higher than 0.2% and 0.95% respectively, but the difference was not significant. The yield of green manure hay in the row 2 maize intercropping with 3 rows of hairs was the highest, with a 2-year average production of 3 901 kg · hm-2, which was significantly higher than other treatments. The yield of green bean legumes was the highest with 2 rows intercropping of 3 rows of needle-leaf peas. The average yield of 2-year corn was 2 225 kg · hm-2, which was also significantly higher than other treatments. 3 rows of corn intercropping needle pea when the highest economic benefits, 35 038 yuan · hm-2, than two rows of maize intercropping green manure value of 7 848 yuan per hectare, an increase of 28.86%, compared with 3 rows of maize green manure The value added per hectare will be 5,853 yuan, an increase of 20.05%. Therefore, when corn is planted in Hexi Oasis irrigation area, if the main grain is harvested, 3 rows of corn intercropping 2-row needle-leaf pea planting mode is suitable; if it is mainly economic benefit, 3 rows of maize intercropping 3 rows Pinus pea planting patterns.