大棚番茄老株更新套种豆角对养分含量及经济效益的影响

通过番茄(Lycopersicon esculentum Mill.)老株更新套种豆角[Vigna unguiculata(L.)Walp.]的大棚试验,分析了土壤和番茄植株的养分含量以及产量、产值差异。结果表明,在豆角拉秧期,土壤硝态氮、速效钾含量比不套种豆角的分别提高了190.22%、59.62%,差异达显著水平。与不套种豆角相比,番茄套种豆角处理的番茄产量降低了10.33%,但差异不显著。不过由于豆角产量为11 415 kg/hm~2,套种豆角后增加的产值有12 270元/hm~2。所以番茄老株更新套种豆角不仅可以显著提高土壤氮、钾含量,还可以提高产量、产值,增加土地利用率。

The Effect of Intercropping of Tomato Old Strain Pruning with Bean in Greenhouse on Economic Benefit and Nutrient Content

The nutrient content of soil and tomato(Lycopersicon esculentum Miller) plants and fruit yield treated by old strain pruning technology of tomato intercropped with bean [Vigna unguiculata (L.) Walp.] was analyzed. The results showed that compared with CK, the soil nitrate N and available K was significantly increased (190.22%, 59.62%, respectively) in the harvest period. The yield of tomato treated by old strain pruning technology intercropped with bean was decreased by 10.33%. However, the decrease was not significant with CK. The yield of bean was 11415 kg/hm2. The economic output value was increased by 12270 CNY/hm2 when interplant with beans, indicating that not only could this cultivation method significantly increase the content of soil N and K, but also improved the economic income and land use efficiency.