H. A. Roberts

发表

Seed banks in soils.

H. A. Roberts, 1981 .

EMERGENCE AND LONGEVITY IN CULTIVATED SOIL OF SEEDS OF SOME ANNUAL WEEDS

H. A. Roberts, 1964 .

FATE OF SEEDS OF SOME ANNUAL WEEDS IN DIFFERENT DEPTHS OF CULTIVATED AND UNDISTURBED SOIL

H. A. Roberts, P. Feast, Patricia M. Feast, 1972 .

Weed control handbook: principles.

H. A. Roberts, 1982 .

CHANGES IN THE NUMBERS OF VIABLE WEED SEEDS IN SOIL UNDER DIFFERENT REGIMES

H. A. Roberts, P. Feast, 1973 .

EFFECT OF CULTIVATION ON THE NUMBERS OF VIABLE WEED SEEDS IN SOIL

H. A. Roberts, Patricia A. Dawkins, 1967 .

Quantitative relationships between the weed flora after cultivation and the seed population in the soil

H. A. Roberts, M. Ricketts, 1979 .

Studies on the Weeds of Vegetable Crops: I. Initial Effects of Cropping on the Weed Seeds in the Soil

H. A. Roberts, 1958 .

Studies on the Weeds of Vegetable Crops: II. Effect of Six Years of Cropping on the Weed Seeds in the Soil

H. A. Roberts, 1962 .

Persistence of seeds of some grass species in cultivated soil

H. A. Roberts, 1986 .

Crop and weed emergence patterns in relation to time of cultivation and rainfall

H. A. Roberts, 1984 .

SEASONAL CHANGES IN THE TEMPERATURE REQUIREMENTS FOR GERMINATION OF BURIED SEEDS OF APHANES ARVENSIS L.

H. A. Roberts, J. E. Neilson, 1982 .

Viable weed seeds in cultivated soils.

H. A. Roberts, 1970 .

PERIODICITY OF SEEDLING EMERGENCE AND SEED SURVIVAL IN SOME UMBELLIFERAE

H. A. Roberts, 1979 .

Seed persistence in soil and seasonal emergence in plant species from different habitats.

H. A. Roberts, 1986 .

Seed survival and periodicity of seedling emergence in four weedy species of Papaver

H. A. Roberts, J. E. Boddrell, 1984 .

Seed survival and seasonal emergence of seedlings of some ruderal plants.

H. A. Roberts, J. E. Boddrell, 1984 .

Observations on the time of flowering of mayweeds.

H. A. Roberts, P. Feast, 1974 .

Seed survival and seasonal emergence in some species of Geranium, Ranunculus and Rumex

H. A. Roberts, J. E. Boddrell, 1985 .

Seed survival and periodicity of seedling emergence in eight species of Cruciferae.

H. A. Roberts, J. E. Boddrell, 1983 .

Seed banks of some arable soils in the English midlands.

H. A. Roberts, R. Chancellor, 1986 .

Seed banks of soils under vegetable cropping in England

H. A. Roberts, J. E. Neilson, 1982 .

Studies on the weeds of vegetable crops. 6. Seed populations of soil under commercial cropping.

H. A. Roberts, F. G. Stokes, 1966 .

Weed competition in drilled summer cabbage

W. Bond, H. A. Roberts, R. Hewson, 1976 .

Weed competition in vegetable crops

H. A. Roberts, 1976 .

Emergence and longevity of seeds of annual weeds in cultivated and undisturbed soil.

H. A. Roberts, P. Feast, 1973 .

Studies in selective weed control II. The control of annual weeds in spring cereals

G. E. Blackman, H. A. Roberts, 1950, The Journal of Agricultural Science.

Studies in selective weed control I. The control of annual weeds in winter wheat

G. E. Blackman, H. A. Roberts, 1950, The Journal of Agricultural Science.

CHANGES IN THE SOIL SEED BANK OF FOUR LONG-TERM CROP/HERBICIDE EXPERIMENTS

H. A. Roberts, J. E. Neilson, 1981 .

PERSISTENCE OF PHYTOTOXIC RESIDUES OF TRIAZINE HERBICIDES IN SOIL

H. A. Roberts, K. Holly, 1963 .

Studies in the Principles of Phytotoxicity III. THE pH FACTOR AND THE TOXICITY OF 3:5-DINITRO-o-CRESOL, A WEAK ACID

G. E. Blackman, H. A. Roberts, E. Simon, 1952 .

Persistence of methazole activity in soil

W. Bond, H. A. Roberts, 1976 .

NOTE ON THE BIOASSAY OF CHLORPROPHAM IN SOIL

H. A. Roberts, B. J. Wilson, 1962 .

COMPARATIVE TOLERANCE OF SOME DICOTYLEDONS TO CHLORPROPHAM

H. A. Roberts, 1965 .

The Changing Population of Viable Weed Seeds in an Arable Soil

H. A. Roberts, 1968 .

Effect of versicolorin C, rosenonolactone and cyclopiazonic acid on bovine pancreas deoxyibonuclease.

J. C. Schabort, H. A. Roberts, 1971, Biochemical pharmacology.

Studies on the Weeds of Vegetable Crops. V. Final Observations on an Experiment with Different Primary Cultivations

H. A. Roberts, F. G. Stokes, 1965 .

The Effect of Weed Removal at Different Times on the Yield of Bulb Onions

H. A. Roberts, R. Hewson, 1971 .

Growth and yield of high‐density cauliflower crops treated with pesticides to control weeds and cabbage root fly (Delia brassicae)

H. A. Roberts, A. Thompson, J. L. Price, 1977 .

Some Effects of Weed Competition on the Growth of Onions

H. A. Roberts, R. Hewson, 1973 .

Studies on the Weeds of Vegetable Crops: III. Effect of Different Primary Cultivations on the Weed Seeds in the Soil

H. A. Roberts, 1963 .

Temperature requirements for germination of buried seeds of Aethusa cynapium L.

H. A. Roberts, J. E. Boddrell, 1985 .

Seed dormancy and field emergence in Solanum nigrum L.

H. A. Roberts, Patricia M. Lockett, 1978 .

TEMPERATURE REQUIREMENTS FOR GERMINATION OF DRY‐STORED, COLD‐STORED AND BURIED SEEDS OF SOLANUM DULCAMARA L.

H. A. Roberts, Patricia M. Lockett, 1977 .

STUDIES ON THE WEEDS OF VEGETABLE CROPS IV. FURTHER OBSERVATIONS ON THE EFFECTS OF DIFFERENT PRIMARY CULTIVATIONS

H. A. Roberts, 1963 .

Seed dormancy and periodicity of seedling emergence in Veronica hederifolia L

H. A. Roberts, Patricia M. Lockett, 1978 .

Effects of weed competition for different periods on the growth and yield of red beet

H. A. Roberts, R. Hewson, 1973 .

Emergence patterns of weed seedlings in relation to cultivation and rainfall

H. A. Roberts, M. Potter, 1980 .

Field emergence and temperature requirements for germination in Solanum sarrachoides Sendt.

H. A. Roberts, J. E. Boddrell, 1983 .

Seed survival and periodicity of seedling emergence in ten species of annual weeds

H. A. Roberts, J. E. Boddrell, 1983 .

ROLE OF TEMPERATURE IN THE SEASONAL DORMANCY OF SEEDS OF VERONICA HEDERIFOLIA L.

H. A. Roberts, J. E. Neilson, 1982 .

The effects of different methods of seed-bed preparation on weed emergence.

H. A. Roberts, J. Bleasdale, 1960 .

Herbicides and insecticides: their compatibility and effects on weeds, insects and earthworms in the minicauliflower crop*

H. A. Roberts, D. G. Finlayson, C. J. Campbell, 1975 .

Seed survival and periodicity of seedling emergence in some species of Atriplex, Chenopodium, Polygonum and Rumex

H. A. Roberts, J. E. Neilson, 1980 .

Seed survival and seasonal pattern of seedling emergence in some Leguminosae

H. A. Roberts, J. E. Boddrell, 1985 .

Seasonal distribution of emergence in some annual weeds.

H. A. Roberts, P. Feast, 1970 .

Seed production by an arable weed community

H. A. Roberts, E. Leguizamón, 1982 .

Seed survival and periodicity of seedling emergence in twelve weedy species of Compositae

H. A. Roberts, J. E. Neilson, 1981 .

Cellulose xanthate as a soil conditioner: implications for weed control with some soil-applied herbicides.

E. R. Page, W. Bond, H. A. Roberts, 1981 .

Note on the Estimation of Viable Weed Seeds in Soil Samples

H. A. Roberts, P. Feast, 1973 .

Periodicity of seedling emergence and achene survival in some species of Carduus, Cirsium and Onopordum.

H. A. Roberts, R. Chancellor, 1979 .

Germination of buried and dry‐stored seeds of Stellaria media

H. A. Roberts, Patricia M. Lockett, 1975 .