窒素供給期間の差異がバレイショの生育,収量,品質に及ぼす影響
スポンサーリンク
概要
- 論文の詳細を見る
Experiments were carried out to clarify the effects of nitrogen supply for the various stages of growth on the yield and quality of potatoes (var. Irish Cobbler) in the sand culture. Seed potatoes were planted late in March (1955) or early in April (1956), and plants were harvested early in July (1955) or middle in July (1956). The concentration of nitrogen in the solution was 140 ppm and other nutrient elements also were supplied sufficiently. The results obtained are as follows. (1) The emergence of tubers in the minus nitrogen treatment was delayed five days compared with that of the control treatment in 1955. But the difference between both treatments was only two days in 1956 experiment, in which larger seed potatoes were used (seed weight was 42_??_43g in 1955, while about 110g in 1956). (2) In both years, plants which were withheld nitrogen supply after late in June (almost ceasing stage of top growth) showed earlier yellowing of ower leaves, but their yields did not fall behind the control plants supplied with nitrogen throughout all stages of growth. But, when nitrogen supply was discontinued after late in May (begining stage of tuber thickening), or early in June (vigorously growing stage of both top and tubers), yield decreas-ed considerably. On supplying with nitrogen after early in May (completing stage of emergence), top growth caught up soon with that of the control, but tuber yield did not reach. And yield of plants supplied with nitrogen during the period between early in May and late in June, was almost the same as the yield of the control plants. Further, nitro-gen supply being delayed till late in May, yield lowered considerably. (3) As to tuber quality, there were no distinct differences in dry matter percentage among the treatments But, in ascorbic acid and total nitrogen, the earlier nitrogen supply was discontinued, or the later nitrogen supply was delayed, the lower were their contents. In conclusion, the period most needed for nitrogen in this experiment, was between early in May (30_??_40 days after planting) and late in June (about 80 days after planting), and nitrogen supply from planting to emergence was also effective for yield increase. But nitrogen supply after late in June was not effective.
- 園芸学会の論文
著者
関連論文
- III-2 そさい類の栄養生理(III 作物の種類と栄養特性)
- ベニタデのアントシアニン含量に及ぼす単色光の影響
- ベニタデ芽生えのアントシアニン濃度と炭水化物濃度との関係
- ベニタデのアントシアニン含量に及ぼす栽培時期の影響
- ベニタデのアントシアニン生成に及ぼす温度の影響
- ベニタデのアントシアニン含量に及ぼす光の影響
- ハツカダイコンの生育に対するカリ施肥の効果と体内カリ濃度との関係
- ハツカダイコン幼植物の生育に対するカリ施肥の効果と置換性カリ含量との関係に影響を及ぼす要因
- 異なる栽培時期におけるそ菜幼植物の生育に対するカリ施肥の効果と置換性カリ含量との関係
- そ菜の生育に対するカリ施肥の効果と土壌の置換性カリ含量との関係
- サトイモ塊茎の貯蔵中に発生する低温障害の組織形態学的観察
- キュウリ果実の貯蔵中に発生する低温障害の組織形態学的観察
- 果実に及ぼすガス濃度の影響 (第4報) : 夏ミカン果実に及ぼす酸素濃度の影響
- カルシウム濃度ならびに窒素形態がカンキツの生育, 無機成分に及ぼす影響
- 窒素形態の差異と蔬菜の生育
- ベニタデのアントシアニン含量に及ぼす培地中の窒素, リン酸並びにカリの影響
- 果実に及ぼすガス濃度の影響 (第1報) : リンゴ紅玉果実に及ぼす酸素濃度の影響
- 窒素形態の差異とそ菜の生育 (第5報) : 培養液中の各種陰イオンとの関係
- 窒素供給期間の差異がタマネギの生育・収量に及ぼす影響
- ナス果実の貯蔵中に発生する低温障害の組織形態学的観察
- 窒素供給期間の差異がイチゴの生育•収量に及ぼす影響
- 窒素形態の差異とそ菜の生育 (第4報) : 生育段階との関係
- 窒素形態の差異とそ菜の生育 (第6報) : 体内窒素成分ならびに炭水化物濃度に及ぼす施用窒素形態の影響
- 窒素供給期間の差異が数種そ菜の生育•収量に及ぼす影響
- アブラナ科そ菜のホウ素欠乏ならびに過剰
- 窒素供給期間の差異がナスの生育•収量に及ぼす影響
- 窒素形態の差異と蔬菜の生育 (第3報) : 培養液の各種陽イオン濃度ならびにpHとの関係
- pH, カルシウム濃度ならびに窒素形態がカンキツの生育, 無機成分に及ぼす影響
- 洋ナシバートレットの追熟について (第2報) : 冷蔵および追熟中の成熟過程ならびに呼吸量
- 洋ナシバートレットの追熟について(第1報) : 追熟温度と冷蔵処理の影響
- 燐酸,加里の供給期間がハクサイの採種量並びに種子の品質に及ぼす影響
- 白肉桃大久保果実に及ぼす酸素濃度の影響 (果実に及ぼすガス濃度の影響-2,3-)
- 窒素供給期間の差異がバレイショの生育,収量,品質に及ぼす影響