吉林西部一年两茬种植模式的作物产量及经济效益研究

Yield and economic benefits of annual two-cropping in western Jilin Province

  • 摘要: 本文以吉林省西部地区长岭县和通榆县为研究区域,探讨了半干旱地区小麦、燕麦与白菜、芥菜型油菜一年两茬种植模式的作物产量及经济效益,以期为适合当地的高效农作物栽培模式提供理论指导。研究以当地常规“玉米一年一茬”种植模式为对照,以小麦/白菜、小麦/芥菜型油菜和燕麦/芥菜型油菜一年两茬种植模式为试验处理,第一茬种植前青小麦、小冰麦、澳麦和加燕2号,第二茬种植白菜、芥辣菜和黑芥末。结果表明,一年两茬种植模式较玉米一年一茬种植模式作物总生长期延长了25~49 d,总产值提高了42.4%~94.0%。其中,加燕2号/芥辣菜和加燕2号/黑芥末种植模式的产值较高,分别达51 092元·hm-2和50 042元·hm-2,是一年一茬玉米种植模式的1.94倍和1.90倍。加燕2号的最佳种植密度为245株·m-2,芥菜型油菜的最佳灌水量为4.52×104 mm·hm-2。因此,加燕2号/芥菜型油菜一年两茬种植模式适宜在吉林西部半干旱地区推广种植。

     

    Abstract: In order to provide a feasible theoretical guidance for local high-efficiency crop cultivation pattern, we conducted an experiment with two cropping annually, in the western part of Jilin Province-Changling county and Tongyu county, to explore the crop yields and economic benefits of Triticum aestivum, Avena sativa, Brassica pekinensis, and Brassica juncea in semi-arid areas.We used Zea mays monoculture as a control, and designed 3 treatments of the two-crops planting annually including Triticum aestivum/Brassica pekinensis, Triticum aestivum/Brassica juncea and Avena sativa/Brassica juncea.We planted Qianqing Triticum aestivum, Xiaobing Triticum aestivum, Australian Triticum aestivum and Avena sativa as the preceding crops, and Brassica pekinensis, Canola hyola Sinapis and Canola hyola Brassica as the subsequent crops.The results showed that the total growth period of the annual two-cropping planting patterns was 25~49 days longer than that of the Zea mays monoculture, and the total production value increased by 42.4%~94.0%.The production value of Avena sativa/Canola hyola Sinapis and Avena sativa/Canola hyola Brassica planting patterns was 51 092 yuan·hm-2 and 50 042 yuan·hm-2, and 1.94 times and 1.90 times higher than Zea mays monoculture, respectively.The optimal planting density of Avena sativa was 245 plant·m-2, and the optimal irrigation rate for Brassica juncea was 4.52×104 mm·hm-2.The Avena sativa/Brassica juncea would be the best planting pattern in the semi-arid areas of western Jilin Province of China.

     

/

返回文章
返回