Effects Of Different Cultivation Patterns And Densities On Kidney Bean Growth And Yiel

The uneven distribution of precipitation during the crop growth period and the poor soil moisture retention and moisture extraction capacity in the semi-arid area of western Heilongjiang hindered the production of common beans.In view of the obstacles of the ecological environment,the group structure of common beans was optimized,and a reasonable production and cultivation mode was established to lay the foundation for the development of mechanized cultivation of common bean production.This leads to conservation farming and sustainable development of agriculture.In this study,the effects of ridge cultivation mode,ridge and furrow cultivation mode and flat crop cultivation mode and 100,000·hm^-2 plants,160,000 hm^-2 plants and 220,000·hm^-2plants were studied under the conditions of ridge cultivation mode,ridge and furrow cultivation mode and flat crop cultivation mode and the three different seedling preservation densities of100,000·hm^-2 plants,160,000·hm^-2 plants and 220,000·hm^-2 plants.1.In different cultivation modes,the soil temperature in the ridge cultivation mode was higher than that in the flat crop cultivation mode and the ridge and furrow cultivation mode,and the temperature increase rate of ridge cultivation was fast.Under different density treatments,the temperature of the denser group is lower.2.With the increase of soil depth,the soil water content in the ridge and furrow cultivation mode reaches a peak.The soil surface temperature has the lowest moisture content.At a soil depth of 30 cm,ridge cultivation was 20.2%higher than ridge cultivation3.There was no difference in the growth time of plants reaching the seedling stage,and the phenological period between the cultivation modes after flowering was significantly different.The group in the ridge cultivation mode matured first,and the group in the ridge cultivation mode matured at the latest.4.The plant height in the ridge cultivation mode is the largest,and the lowest in the flat cropping cultivation mode.As the density increases,the plant height gradually increases.The process of transverse stem thickening was significantly affected by density,which decreased with the increase of density,and the stem thickness of each treatment reached a peak at the ripening stage.5.With the increase of population density,the chlorophyll content of common beans gradually decreased.There were differences in canopy structure in kidney bean groups,and there were significant differences between high-density and low-density groups,the average leaf inclination gradually increased with the increase of density,the scattered radiation transmission coefficient and direct radiation transmission coefficient of the group decreased with the increase of leaf area index,and the light energy interception of ridge cultivation mode increased by 15.3%compared with the flat cultivation mode.6.Among the different cultivation modes,the ridge cultivation mode maintained the highest accumulation of stem matter.The dry matter accumulation of kidney pods and grains reached a maximum of 160,000·hm^-2 plants,which appropriately increased the density,which was conducive to the dry matter accumulation of pods,and the ridge cultivation mode was more conducive to the accumulation of dry matter of grains.7.The yield of common beans in ridge cultivation mode was significantly higher than that in flat cropping cultivation mode,but the difference between the yield and that of ridge and furrow cultivation mode was not significant.The yield of 160,000·hm^-2 plants peaked at 2591.51 kg·hm^-2 under ridge cultivation mode and the lowest yield of 220,000·hm^-2 plants in flat cropping cultivation mode was only 1889.42 kg·hm^-2.In summary,the interaction between ridge cultivation mode and the seedling preservation density of 160,000·hm^-2 plants can make common bean plant groups have better agronomic traits,stronger photosynthetic ability,and higher yields.