180 AGEONOMY [BoT. Absts., Vol. IX, 



per cent, more after fallow than after maize. As an average of results for 13 years, oats 

 following small grain yielded 4.9 bushels, or 13 per cent, more than when following sod crops, — 

 alfalfa, smooth brome-grass, and clover; the lowest yield followed alfalfa. Wheat, oats, and 

 barley following maize yielded more than when following small grains. — In a comparison of 

 disking versus plowing maize ground as a preparation for wheat and oats, the results for an 

 average of 14 years were slightly in favor of the disked ground. — In fertilizer experiments with 

 wheat, oats, barley, and maize, using manure and mineral fertilizers, distinct positive results 

 were secured only with maize. Progress data are presented upon experiments designed to 

 maintain soil productivity on the Edgeley loam. — Notes are given on suitable trees and 

 methods of tree planting, especially with relation to farmsteads. Suitable varieties of 

 apples, plxmas, and small fruits are indicated. — L. R. Waldron. 



1148. Walters, J. A. T. Winter wheat. Results of co-operative experiments 1921. 

 Rhodesia Agric. Jour. 18: 181-183. 1 pi. 1921. — A summary is presented of reports of ex- 

 periments with 4 varieties of winter wheat, namely. Early Gluyas, Florence, Black Persian, 

 and Yellow Cross; results are given for both irrigated and unirrigated lands. — E. M. Doidge. 



1149. Wester, P. J. Cultural directions for field crops and vegetables. Philippine 

 Agric. Rev. 13: 80-88. PL 1-7. 1920. — Brief notes are given on the general cultivation of 

 vegetables and field crops, such as ragi, rape, sembu, and sunflowers, with tabulated direc- 

 tions for planting. — E. D. Merrill. 



1150. Wester, P. J. Notes on adlay. Philippine Agric. Rev. 13:217-222. PI.I-4. 1920. 

 — The author strongly urges the more extensive cultivation and utilization of Coix lachryma- 

 jobi Linn. var. mayuen Stapf, a variety of the common Job's tears with soft, thin, involucre 

 instead of the very hard one in the typical form. This has been cultivated for many centuries 

 by the more backward peoples in the Indo-Malayan region. — E. D. Merrill. 



1151. Whittet, J. N, A promising introduction. Kikuyu grass (Pennisetum longistylum 

 Hochst.). Agric. Gaz. New South Wales 32: 313-322. 5 fig. 1921.— Reports from 10 experi- 

 ments with this grass are briefly stated. The grass holds out much promise for Australian 

 conditions. Cultural notes and an analysis are given. A test shows the grass to be favorable 

 for milk production. — In a palatability test with 14 grass species, Kikuyu grass ranked 3rd, 

 Bromus inermis 1st, Phleum pratense 6th, Poa pratensislth, and Boutelouaoligostachya 13th. — 

 L. R. Waldron. 



1152. Williams, C. B. I. Fertilizers for crops commonly grown in North Carolina. 

 Bull. North Carolina Dept. Agric. 1921: IS p. May, 1921. — Recommendations are given of 

 the kind and amount of commercial fertilizer to be used for cotton, cereals, tobacco, and 

 leguminous crops in the coastal plain. Piedmont, and mountain sections of North Carolina. — 

 F. A. Wolf. 



1153. Williams, C. B. Report of the Division of Agronomy. Ann. Rept. North Carolina 

 Agric. Exp. Sta. 43: 15-31. 1920 [1921]. — A general statement is presented covering the in- 

 vestigations in soil fertility at the several test farms, tests with nitrate of soda on cotton in 

 the Piedmont section, fertilizer tests with wheat in the mountain section, and results of seed 

 selection with soybean, cotton, wheat, and corn. — F. A. Wolf. 



1154. Zielstorff, W. Uber Haferdiingungsversuche mit fallenden Phosphorsaiiregaben. 

 [Fertilizer experiments on oats, using decreasing quantities of phosphoric acid.] Mitteil. 

 Deutsch. Landw. Ges. 36: 213-215. 1921. — Field experiments were carried out at Polenshof 

 and Ludwigswalde; also pot experiments with soils from these fields. Though neither field 

 reacted in any way to phosphoric acid, a decided need for this ingredient was shown in the pot 

 experiments; this may have been due to a deficiency in rainfall during the summer months. 

 There was also lack of agreement between the field and pot experiments as regards potash, 

 for which no explanation appears. Further experiments are necessary to furnish an explana- 

 tion. — Albert R. Merz. 



