Weeds of the Farm and GardenOrange Judd Company, 1912 - 281 páginas |
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Resultados 1-5 de 100
Página ix
... Leaf 119 44 . Rose Leaf 120 45 . Parts of a Leaf 120 46 . 47 . 48 . Aconite Leaf 58 . 59 . Parallel - Veined Leaves Sassafras Leaf 49. Leaves of Various Types 50 . Radiate - Veined Leaves 51-57 . Various Types of Leaves Catkin of Birch ...
... Leaf 119 44 . Rose Leaf 120 45 . Parts of a Leaf 120 46 . 47 . 48 . Aconite Leaf 58 . 59 . Parallel - Veined Leaves Sassafras Leaf 49. Leaves of Various Types 50 . Radiate - Veined Leaves 51-57 . Various Types of Leaves Catkin of Birch ...
Página 3
... leaves . No more water is taken up by the crop than is evaporated by the leaves . " If the leafy growth of a cereal crop is not normal in extent , but weakened and insufficient because of crowd- ing out by other plants which exclude ...
... leaves . No more water is taken up by the crop than is evaporated by the leaves . " If the leafy growth of a cereal crop is not normal in extent , but weakened and insufficient because of crowd- ing out by other plants which exclude ...
Página 77
... leaf sneezeweed is a dominant weed everywhere through- out the state ; and the buffalo bur , which is indigenous to the plains from western Texas to Colorado , is one of the dominant weeds . These weeds have largely spread since the ...
... leaf sneezeweed is a dominant weed everywhere through- out the state ; and the buffalo bur , which is indigenous to the plains from western Texas to Colorado , is one of the dominant weeds . These weeds have largely spread since the ...
Página 100
... leaf . The spray should be evenly spread over the leaves on a quiet day with no rain for two or three days . Damp weather is effective if sunshine follows . It is better to use a large machine having a capacity of 160 gallons , and if ...
... leaf . The spray should be evenly spread over the leaves on a quiet day with no rain for two or three days . Damp weather is effective if sunshine follows . It is better to use a large machine having a capacity of 160 gallons , and if ...
Página 114
... leaf , and at certain stages of development , a fourth organ , the flower . The root , stem and leaf have Fig . 35. Fibrous root of crab grass . to do with the nutrition of the plant and the flower with its re- production . In our study ...
... leaf , and at certain stages of development , a fourth organ , the flower . The root , stem and leaf have Fig . 35. Fibrous root of crab grass . to do with the nutrition of the plant and the flower with its re- production . In our study ...
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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