GnNesr, Jr,rN, exo Srerrrrn, Howlno. 1973

The effect of browse supplementation on maize husk (Zea mays) utilization by goats was studied in a 12 week feeding and 2 week digestibility trial. Twenty-four goats were stratified according to their weight, and then randomly allocated to four treatments. Browse supplementation significantly increased (P < 0.05) the total dry matter intake, diet dry matter digestibility and diet organic matter digestibility (P < 0.05) but did not have any significant effect on acid detergent fibre digestibility (P > 0.05). The browse supplemented goats gained more weight than the non browse supplemented goats.

Percent crude protein and yield of protein information from oat fertilizer trials was collected from twelve sites, including eight soil types and two drainage classifications. Nitrogen was responsible for increases in crude protein content of the grain grown on all soil types studied. Phosphorus and potassium generally reduced the crude protein content of grain, although there were some slight increases recorded. Imperfectly drained soils produced grain of higher crude protein content than well drained soils. Nitrogen, and to a lesser extent phosphorus, was necessary for maximum yield of protein on the well drained soils. Nitrogen alone on the imperfectly drained soils gave maximum protein yields. Potassium had little effect on the yield of protein on either drainage system. Significant seasonal differences in yield of protein were recorded. Higher yields of protein were found on the well drained soils than on the imperfectly drained soils. Yield of grain and yield of protein were highly correlated (r = + .93). Thus, yield information alone is capable of predicting 86% of the variability of yield of protein.

't'he effects of temoeratur" .'"r,rfff1lttf,,rl.ru.ti-ate on t\\'o oat r-arieties were investigated in relarion ro thc groutlr of rhis crop as measurcd b1'total dry matter and net assinrilation ratc (N.A.R.

Agroforestry seems to validate the aphorism that there is nothing new under the sun – only recycled ideas. Although a new term, coined in 1977, it denotes an age-old practice of having trees mixed in the agricultural landscape. It also involves, however, study of the problems arising at the interface of agriculture and forestry, and the establishment of an organisation dedicated specifically to those problems.