Weeds of the Farm and GardenOrange Judd Company, 1912 - 281 páginas |
Dentro del libro
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Página 1
... corn fields kept clean produced a one - third larger crop and that an estimate of the loss of corn from the growth of weeds in the state of Iowa amounts to $ 7,000,000 to $ 9,000,000 annually . In all of our great crop - producing ...
... corn fields kept clean produced a one - third larger crop and that an estimate of the loss of corn from the growth of weeds in the state of Iowa amounts to $ 7,000,000 to $ 9,000,000 annually . In all of our great crop - producing ...
Página 2
... cornfield which contained a great deal of quack grass . In 1908 this field was cleaned and the present season has been in oats . The treated field contained one - third more oats to the acre than the weedy adjacent fields . The same has ...
... cornfield which contained a great deal of quack grass . In 1908 this field was cleaned and the present season has been in oats . The treated field contained one - third more oats to the acre than the weedy adjacent fields . The same has ...
Página 4
... cornfields , mustard , at times , in oats and flax fields . Some weeds are injurious because they are poisonous to man and the lower animals . Cowbane and water pars- nip are powerfully poisonous ; the seed of corn cockle poisons grain ...
... cornfields , mustard , at times , in oats and flax fields . Some weeds are injurious because they are poisonous to man and the lower animals . Cowbane and water pars- nip are powerfully poisonous ; the seed of corn cockle poisons grain ...
Página 23
Louis Hermann Pammel. were found night - flowering catchfly , corn cockle , and bull thistle . Grain Seed . The wild ... fields and has become a troublesome weed in grain fields . Mexican fireweed , cultivated as an ornamental plant , is ...
Louis Hermann Pammel. were found night - flowering catchfly , corn cockle , and bull thistle . Grain Seed . The wild ... fields and has become a troublesome weed in grain fields . Mexican fireweed , cultivated as an ornamental plant , is ...
Página 57
... Fields : Small Grains . - The kinds of weeds found in small grain fields vary with the locality ; although some kinds are quite universal . Among these are mustard , corn cockle , cowherb and vetch . Many others are local . Among these ...
... Fields : Small Grains . - The kinds of weeds found in small grain fields vary with the locality ; although some kinds are quite universal . Among these are mustard , corn cockle , cowherb and vetch . Many others are local . Among these ...
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Términos y frases comunes
achenes alfalfa annual awned biennial blue grass bracts branched brome grass bull thistle C. M. King calyx Canada thistle carpels cent Cirsium clover seed clusters cocklebur common weed corn corolla crab grass crop cultivated curled dock dodder erect Europe five five-lobed four foxtail fruit germination glabrous glumes hairy herb horse nettle impurities inches long involucre Iowa lanceolate leaf leaves linear lobes marsh elder meadows milkweed Minnesota Missouri morning glory mustard native North numerous oats oblong ovary ovate ovules panicles pappus pastures pepper grass perennial petals petioled pigweed pinnately pistil Plantago plantain plants plowing poisonous Polygonum prickly pubescent purple quack grass racemes ragweed roadsides roots rootstocks Rumex sepals sessile sheaths sheep sorrel slender smartweed smooth soil species spikelets spikes spreading Spurge squirrel-tail stamens stem stipules sulphate Sunflower sweet clover Texas three feet high toothed troublesome weed U. S. Dept upper waste places weed seeds wild yellow