878 



Agricultural Gazette of N.S.W, 



[Dec. 2, 1920. 



growth of stalk was exceptionally luxuriant, the season being particularly 

 favourable to late-sown maize. The moist weather and excessive growth 

 caused lodging, and the percentage of damaged maize was fairly high. The 

 plots were scuffled on 12th and 22nd January, hilled on 31st January, and 

 middled on 3rd February. The results are consistent witli trials sown on 

 the same d*te the previous season. 



The fertiliser mixtures were mads up as follows : — 



P7 = Equal parts superphosphate and bonedust. 



PS = Equal parts superphosphate and blood and bone. 



M5 = Two parts superphosphate and one sulphate of ammonia. 



North JJorrigo. — The soil is red volcanic, of porous nature, and typical 

 of the best land on the plateau. It was reduced to an excellent tilth by 

 two ploughings and harrowings, and was sown on 10th October. After- 

 cultivation consisted of scuffling on 1st November and 2nd December. The 

 soil was moist at sowing time, and the germination excellent. The growth 

 of the plots was most satisfactory, and the unmaiiured plot seemed very 

 backward right from the cummeucement. It was thought that the dif- 

 ferences in yield would be greater than they actually proved to be, the 

 biggest increase being only 3J bushels with 2 cwt. of P7 to the acre, and 

 the plots generally showed very little difference as a result of maiiurial 

 treatment. Jn previous yoiirs the results liave been more marked, and 

 further trials will show whether the high cost of aiii)lying f(>rtiliser to 

 Dorrigo soils (-owing to its isolation) is warranted. 



" The liisk," Kyogle. — The experiments in this centre were conducted on 

 deep, rich, black alluvial loam that is particularly adapted for maize 

 growing. 'Jlie season was not so severe as on the rest of the llichmond. 



