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Comparisons were made between 3 plots in a plantation of P. sylvestris: on (a) the dry plot, rain was prevented from entering the soil; on (b), soil w...Read more
cf. F.A. 26 No. 1678.] Gypsum electrical-resistance blocks were used to follow changes in soil moisture on four forested sites and one grass-covered s...Read more
Optimum summer index is based on the formula I= 10TX + 20S-7R where TX is mean daily temperature (°F), S is mean daily sunshine (h) and R is total rai...Read more
Optimum summer index is based on the formula I = 10Tx + 20S-7R where Tx is mean daily temperature (°F), 5 mean daily sunshine (h) and R is total rainf...Read more
On the Dry plot, rain was prevented from entering the soil; on the Irrigated plot, the soil was kept near field capacity by irrigation; the Normal plo...Read more
In further work [cf. F.A. 27 No. 106], the annual cycle of water movement has been studied over five growing seasons in adjacent semi-mature stands of...Read more
(S. & F. XXVIII ). Soil-moisture changes were followed for three years; the plantations varied in age from 20 to 32 years and were on soils d...Read more
Soyabeans were grown in pots at 20, 40, 60, 80 or 100% of field capacity or were allowed to wilt 1-5 times during the growth cycle. Small decreases in...Read more