A Study On Potato And Kidney Bean Interplanting Pattern In Guiyang Area

Three factors and three levels randomized block design was used in this experiment, the method of combing field test and inside analysis was used in studying on the standardized cultivation technology of potato intercropping with kidney bean. The optimal planting pattern of potato intercropping with kidney bean at the middle -altitude area of Guizhou Province was researched to save the cost and increase the efficiency, and acquire the optimal planting pattern that can be applied in practical production. The results are as following:1. The yield of potato under different intercropping pattern (A) is A₃>A₁> A₂> The yield of potato cultivated by the intercropping pattern(A₃) is the highest in the test, it was 16.02kg/12m² , it was increased 4.26kg and 5.44kg compared with A₁ and A₂, and by 26.6% and 34.0%.2. The yield of kidney bean has big difference among the treatments, according to the yield order, the average yield of A₃B₂C₃ was the highest among 27 treatments, it was 1.55kg/12m²; the yield of A₁B₂C₂ was only 0.87kg/12m², it was the lowest yield in the test.3. According to the analyswas about the output-composing factors of kidney bean, the result indicates that the sequence of the influence of the five introduced agriculture characters was: the whole weight of 100 kidney beans> the amount of the effective pod of one plant> the length of the pod> the whole weight of one plant> the height of the plant.4. According to the analyswas about the output-composing factors of kidney bean, the result indicates that the sequence of the influence of the five introduced agriculture characters was: the whole weight of 100 kidney beans> the amount of the effective pod of one plant> the length of the pod> the whole weight of one plant> the height of the plant.5. The content of votive sugar of potato was impacted by different intercrop-pattern to some extent, the content of votive sugar has no significant difference among the three kinds of planting pattern in squaring stage, the difference of the content of votive sugar become more and more obvious as the process of growing time, the sequence of the content of votive sugar in squaring stage was: 1:2>2:2>2:1, the sequence of the content of votive sugar from vigorous flowering stage to autumn was 2:2>2:1>1:2.6. In the planting pattern of potato intercropping kidney bean, the compound-yield receives its best yield when potato and kidney bean are intercropped in the pattern of 2:2, the optimal planting pattern was supposed to be the A3B2C3 when compound-yield was considered to be the choice aim, that was to say , just when two rows of potato are intercropped with two rows of kidney bean, with the plant spacing of potato at 25 cm and plant spacing of kidney bean at 40 cm.