Effect Of Phosphogypsum And Organic Fertilizer On The Growth And Yield Of Kidney Bean In Saline-alkali Land

Northeast China is an important commodity grain and animal husbandry base in China.Saline-alkali land area is the third in the world.And it restricts the growth,development and yield of Phaseolus vulgaris.In order to using cow dung in Daqing area and industrial waste ardealite to improved saline-alkali soil,increased yield of kidney beans and increased agricultural income.Test select ardealite and organic fertilizer improved saline-alkali soil.Cultivar was British red and Jilin num.1.Collect samples of kidney bean and saline-alkali soil.Detected physical and chemical properties of soil.Surveyed growth period of kidney bean.Detected physiological and morphological indicators of kidney bean,harvested plants,seedling rate,lodging rate,yield characters and yield of kidney bean.Explored the effect of ardealite and organic fertilizer on physical and chemical properties of soil and growth and yield of kidney bean in saline-alkali soil.The results showed that:1.Mixing ordealite with organic fertilizer can much effcet water content of saline-alkali soil.Organic fertilizer induced bulk density,increased 10²0cm porosity and 0.25⁵mm the aggregates of saline-alkali soil.Mixing ordealite with organic fertilizer 0¹0cm porosity.Induced>5mm the aggregates of saline-alkali soil.Organic fertilizer increased the alkaline hydrolysis N,organic matter,total nitrogen and total potassium,induced total salting.Mixing ordealite with organic fertilizer increased effective P,available K,total phosphorus,induced pH by 1.06.Ordealite increased exchangeable Ca.Organic fertilizer increased soilrespiratoryintensity,sucraseactivitiesandalkalinephosphataseactivitiesby152.78mgCO₂·m^-2·h^-1,0.19mg,1980.84mg.Mixing ordealite with organic fertilizer increased urease activities by 28.01mg.2.Mixing ordealite with organic fertilizer can effect total growth days of British red and vegetative growth period of Jilin num.1 much more.Organic fertilizer increased number of harvested plants by 11.39%of Jilin num.1,increased lodging rate by 59.17%of British red.The plant height,nods of main stem,root length,branches,pods and dry matter weight growing over time.Organic fertilizer and mixing ordealite with organic fertilizer all can increase the plant height,nods of main stem,root length,branches,pods and dry matter weight of kidney bean.But,there were varieties in two cultivars.3.Organic fertilizer and mixing ordealite with organic fertilizer all can increase leaf area index,induce root shoot ratio of kidney bean in different period.Mixing ordealite with organic fertilizer increased plant height,stem width,bottom pod height,nods of main stem,effective nods and pod width in mature period of Jilin num.1,increased stem width,nods of main stem and effective nods of in mature period British red.Organic fertilizer increased plant height and bottom pod height.4.Organic fertilizer and mixing ordealite with organic fertilizer all can chlorophyll content and net photosynthesis rate in different periods of kidney bean.Organic fertilizer induced MDA content,increased CAT content of British red,increased WSS content,WPr content,Pro content,POD content and CAT content of Jilin num.1.Mixing ordealite with organic fertilizer increased WSS content,WPr content,Pro content of British red,induced MDA content of Jilin num.1.5.Mixing ordealite with organic fertilizer increased pods per plant,yield per plant and100-grain weight of British red,increased pods per plant of Jilin num.1.Organic fertilizer increased spikelits per plant of British red,increased spikelits per plant yield per plant and100-grain weight of Jilin num.1.Mixing ordealite with organic fertilizer increased yield by802.25g/hm² of British red.Organic fertilizer increased yield by 1903.49kg/hm² of Jilin num.1.