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Sustainable legumes-cereal cropping system. Sustainable legumes-cereal cropping system through management of biological nitrogen fixation

Автор:   Rifat H.
мягкая обложка
176 страниц
2009 год
Издательство:   Книга по Требованию
2766 руб
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Описание:Supply of available N following legumes is usually higher than those following non-legumes. BNF occurs mainly through symbiotic association of legumes with certain N2-fixing microorganisms that convert elemental nitrogen into ammonia. Phosphorus have a significant positive effect on the growth and biological yield of the legumes. However, it is recommended that further long term trials involving legumes-cereal rotation may be conducted on farmer’s field to get comprehensive data, improving the understanding and to come up to a more sound conclusion. Legume-cereal sequence also enhanced biomass and grain yield as well as WUE of subsequent wheat. The ability of legumes to fix atmospheric nitrogen, their nodulated roots and plant residues left after harvesting represent a valuable source of organic N. Annual crop legumes, grown in rotation with cereal crops, can improve yields of the cereals and contribute to the total N pool in soil. Biological nitrogen fixation (BNF) is the most important biochemical reaction for life on earth.

Orthomol Immun Junior Сила иммунитета на страже Вашего ребенка Orthomol Immun Junior Сила иммунитета на страже Вашего ребенка

2990 руб
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Kathy_s Young Mouth

She collapsed on him, quivering like jelly. Her orgasm increased tenfold when she felt her father spewing his seed deep in her belly. Kathy was astounded by her body's reaction. She'd thought that she "was tiring, far past the peak of her long-sustained cum. Her mind reeled as the shocking contractions ripped through her. All she knew was heat and sweat and the pumping cock wedged deep in her cunt. Mike felt his balls drain completely, but the sensation of cumming went on and on. Kathy's slender torso wilted down onto him and his fingers slowly relaxed on her ass. Tiny shudders passed through them both. Long silky strands of hair drifted over his face. Neither of them moved until morning. Chapter 11 Mike woke first. He brushed Kathy's fine blonde hair away from his lips. He wondered for a second, then remembered. His cock had squeezed out of his daughters pussy while they slept Mike found his whole crotch was sticky with thick gunk when he tried to move his thighs. … "Umm," Kathy purred, nuzzling into his throat ...»

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