SOYBEANS FOR MASSACHUSETTS ■ 5 



Mansoy. — A pure-line selection from Manchu made at Arlington F"arni, Va. 

 Seed >-ello\v with slate-black hilum; about 2450 to the pound; maturing ha\- in 

 105 days and seed in 135 days, l^sed for hay, pasture, and silage. 



Mediitm Green. — Introduced from Japxin in 1889 1)\- W. P. Brooks, Massachu- 

 setts Agricultural E.xperiment Station. Seeds green with brown hilum; alK)ut 

 2485 to the pound; maturing hay in HI days and seed in 137 days. Used for 

 ha\", pasture, green manure, and silage. 



Minsoy. — Developed by Minnesota Agricultural Experiment Station. Seeds 

 straw yellow with brown hilum; about 3700 to the pound; maturing hay in 80 days 

 and seed in 117 da\s. Used for seed. 



Mitkderi. — Selection from an introduction received from Mukden, Manchuria, 

 in 1920. Named and distributed In- the Iowa Agricultural Experiment Station 

 in 1932. Plants stout, erect, bush>-, maturing in about 110 days; pubescence 

 gray; flowers white; pods 2-3 seeded; seeds strawyellow with brown hilum; about 

 2750 to the pound. Valuable as an earh' grain variety. 



Pekino. — Selection from Me\er variety- at Arlington Farm, \'a., in 1907. Seeds 

 black; about 6388 to the pound; maturing ha\' in 111 days; does not mature 

 seed in Massachusetts. Used for ha\' and silage. 



Pinpii. — Introduced by U. S. D. A. from Harbin, Manchuria, in 1910. Seeds 

 straw yellow with brown hilum; about 2675 to the pound; maturing ha\' in 96 

 da>s and seed in 130 da>s. Used for ha\-, grain, and pasture. 



Soysoia. — Introduced b>' the Minnesota Agricultural Experiment Station. 

 Seeds brown; about 4900 to the pound; maturing hay in 88 da>s and seed in 

 122 days. Used for seed. 



Virginia. — Selection from Morse variet>- at Arlington Farm, \'a., in 1907. 

 Seeds brown; about 3455 to the pound; maturing hay in 111 days; does not 

 mature seed in Massachusetts. Used for ha>' and silage. 



Wea. — Introduced h\ U. S. D. A. from Shuangchengfu, Manchuria, in 1911. 

 Seeds straw yellow with dark oiive-brown hilum; about 3246 to the pound; matur- 

 ing hay in 96 days and seed in 130 dajs. Used for ha\', grain, and silage. 



Wilson-Five. — Selection from Wilson variety at Arlington Farm, \'a., in 1912. 

 Seeds black; about 5025 to the pound; maturing hay in 111 da\"s; does not mature 

 seed in Massachusetts. Used for ha\' and silage. 



Wisconsin Black. — Developed b\- Wisconsin Agricultural E.xperiment Station. 

 Seeds black; about 3085 to the pound; maturing hay in 80 days and seed in 117 

 days. Used for seed. 



Soil, Fertilizer, and Climatic Conditions 



These tests were conducted on a soil classified as Agawam fine sandy loam. 

 This is a water-worked soil, of fair to good natural drainage, level to rolling to- 

 pography, free of stones, and fairK' fertile. It is quite homogeneous to a depth 

 of three feet or more, and is sufficienth' retentixe of moisture to enable crops 

 grown on it to withstand considerable drought. The field was tile-drained. 

 The reaction of the unlimed soil was about pH 5.5, but b\ liming this was raised 

 to and maintained at about pH 6.0. The texture and structure of the soil are 



