Studies On The Effects Of Beijiang No.1 (Glycine Max L.merr) Yield And Quality On Planting Density

Soybean priduction has an extremely important position in agricultural production in Hei Longjiang Privince. Bei Jiang No.1 soybeans are especially spread new product in 2000.The study discussed the effects on Bei Jiang No.1 soybeans' yield quality on planting density by the management of eight different planting densities in order to explore the property combination of the large production of Bei Jiang No .1, soybeans and suitable planting density range/which supplied abstract reference for Bei Jiang No.1 soybeans'large production planting.The experiment results prove that the suitable planting density range of Bei Jiang No.1 soybeans is three hundred thousand plants per hm~2 to three hundred and fifty thousand plants per hm~2 .In this planting density range,the yield property combination of Bei Jiang No.1 soybeans is the best and the yield is the highest.Planting density has different effects on the yield properties and the formal properties of Bei Jiang No.1 soybeans.The planting density doesn't take obvious effects on the grain numbers per pod of Bei Jiang No.1 soybeans. 100 grain weight of soybeans increase with the add of planting derisity.Pod numbers per stub,grain numbers per stub and grain weight per stub will drop with the increase of planting density.The pod numbers and grain numbers per unitary area will increase with that of planting density in suitable planting density,which will drop when the density is above the suitable one. Plantheight and basal pod height will rise with the increase of planting density...Stem thickness will obviously become thinner with the increase of planting density.Branch numbers, branch pod numbers and branch grain numbers will obviously decrease with the increase of planting density. Joint numbers under the base pods have a tendency to decrease with the increase of planting density,but it doesn't come to the most obvious level.Planting density has an effect on the fat content of Bei jiang No.1 soybeans,but it doesn't reach an obvious level.Planting density is between fifty thousand to three hundred thousand plants per hm~2Fat content increases with the add of planting density. When planting density is above three hundred thousand plants per hm~2,fat content drops.The effect direction that planting density tades on fat content basically agrees with that on the yield.Planting density takes obvious effects on protein content of Bei Jiang No.1...