scholarly journals Seasonal differences in tillage draught on a sandy loam soil with long-term additions of animal manure and mineral fertilizers

2016 ◽  
Vol 32 (4) ◽  
pp. 583-593 ◽  
Author(s):  
C. Peltre ◽  
T. Nyord ◽  
B. T. Christensen ◽  
J. L. Jensen ◽  
I. K. Thomsen ◽  
...  
Keyword(s):  
Sandy Loam ◽  
Animal Manure ◽  
Sandy Loam Soil ◽  
Mineral Fertilizers ◽  
Seasonal Differences ◽  
Loam Soil

Agrotechnological passport of the potato variety Signal

2021 ◽  
pp. 33-36
Author(s):  
А.Э. Шабанов ◽  
А.И. Киселев
Keyword(s):  
Potato Variety ◽  
Central Region ◽  
Sandy Loam ◽  
Agricultural Practices ◽  
Subsequent Development ◽  
Sandy Loam Soil ◽  
Planting Density ◽  
Research Centre ◽  
Mineral Fertilizers ◽  
Loam Soil

Опыты проводили в 2018–2020 годах на экспериментальной базе «Коренево» (Московская область) в условиях дерново-подзолистой супесчаной почвы Центрального региона Нечерноземной зоны России. Цель исследований – изучить реакцию нового среднеспелого сорта картофеля Сигнал селекции ФГБНУ «ФИЦ картофеля имени А.Г. Лорха» на сроки, густоту посадки и приемы внесения минеральных удобрений по комплексу хозяйственно ценных признаков (морфологические и биологические особенности, потребительские и столовые качества клубней, урожайность, показатели качества клубней, устойчивость к болезням, лежкость при хранении). Выбор исследуемых агроприемов обусловлен необходимостью ускорения появления всходов, последующего развития растений и формирования достаточно значимого уровня урожая клубней до наступления неблагоприятных метеорологических условий (жара, засуха), а также обеспечения бесперебойного питания растений в течение всей вегетации, так как на супесчаных почвах во время выпадения осадков происходит вымывание питательных веществ в недоступные для корневой системы растений слои. Клубни высаживали в два срока: ранний (третья декада апреля при температуре почвы не ниже 5–7 °C) и базовый (контроль) – через 7–10 дней после первого срока. Посадку проводили на фоне удобрений, внесенных локально тремя приемами при нарезке гребней и последующих междурядных обработках двумя лентами: 1. Основное N90P90K135(контроль); 2. Дробное №1 (стартовое N60P60K90+ подкормка N30P30K45 через 7–10 дней после всходов); 3. Дробное №2 (стартовое N30P30K45 + подкормка N30P30K45 через 7–10 дней после всходов + подкормка N30P30K45 в фазе бутонизации). Густота посадки: 44, 50 и 56 тыс. клубней/га по схеме 75×30; 75×27 и 75×24 см. Определен наиболее эффективный комплекс агроприемов, включающий раннюю посадку (третья декада апреля при температуре почвы не ниже 5 °C) с густотой 44 тыс. клубней/га на фоне дробно-локального внесения удобрений (№1). В условиях дерново-подзолистой супесчаной почвы Центрального региона Нечерноземной зоны сорт дает прибавку урожая в размере 3,9 т/га, или 10,3%. При этом условный доход составляет 43,0 тыс. р/га. Ключевые слова: агротехнологический паспорт, урожайность, срок, густота посадки, прием внесения, потребительские и столовые качества, условный доход. The experiments were carried out in 2018–2020 at the experimental base Korenevo (Moscow region) in the conditions of sod-podzolic sandy loam soil of the Central region of the Non-Chernozem zone of Russia. The aim of the research is to study the reaction of a new medium-ripe potato variety from the selection of Russian Potato Research Centre on the timing, planting density and methods of applying mineral fertilizers according to a complex of economically valuable characteristics (morphological and biological features, consumer and table qualities of tubers, yield, quality indicators of tubers, disease resistance, shelf life). The choice of the studied agricultural practices is due to the need to accelerate the emergence of seedlings, the subsequent development of plants and the formation of a sufficiently significant level of tuber yield before the onset of adverse meteorological conditions (heat, drought), as well as to ensure uninterrupted nutrition of plants throughout the growing season, since on sandy loam soils during precipitation, nutrients are leached into layers inaccessible to the root system of plants. Tubers were planted in two terms: early (3rd decade of April at a soil temperature not lower than 5–7 °C) and basic (control) – 7–10 days after the first term. The planting was carried out against the background of fertilizers applied locally in three methods when cutting the ridges and subsequent row-to-row treatments with two tapes: 1. Basic N90P90K135 (control); 2. Fractional No1 (starting N60P60K90 + top dressing N30P30K45 7–10 days after germination); 3. Fractional No2 (starting N30P30K45+ top dressing N30P30K45 7–10 days after germination + top dressing N30P30K45 in the budding phase). Planting density: 44, 50 and 56 thousand tubers/ha according to the scheme 75×30; 75×27 and 75×24 cm. The most effective agro-complex of techniques was determined, including early planting (3rd decade of April at soil t not lower than 5 °C) with a density of 44 thousand tubers/ha against the background of fractional local fertilization (№1). In the conditions of sod-podzolic sandy loam soil of the Central region of the Non-Chernozem zone, the variety gives an increase in yield of 3.9 t/ha, or 10.3%. At the same time, the conditional income is 43.0 thousand rub/ha.

Long‐Term Persistence of Picloram in a Sandy Loam Soil

1979 ◽  
Vol 8 (1) ◽  
pp. 83-86 ◽  
Author(s):  
J. D. Fryer ◽  
P. D. Smith ◽  
J. W. Ludwig
Keyword(s):  
Sandy Loam ◽  
Sandy Loam Soil ◽  
Loam Soil

Aggregate strength and mechanical behaviour of a sandy loam soil under long-term fertilization treatments

2002 ◽  
Vol 53 (1) ◽  
pp. 129-137 ◽  
Author(s):  
L.J. Munkholm ◽  
P. SchjØnning ◽  
K. Debosz ◽  
H. E. Jensen ◽  
B.T. Christensen
Keyword(s):  
Mechanical Behaviour ◽  
Sandy Loam ◽  
Sandy Loam Soil ◽  
Loam Soil ◽  
Aggregate Strength

scholarly journals Agronomical Field Testing of New Kinds of Multicomponent Mineral Fertilizers

2014 ◽  
Vol 17 (1) ◽  
pp. 79
Author(s):  
K.T. Zhantasov ◽  
Z.U. Myrhalykov ◽  
S.M. Moldabekov ◽  
M.K. Zhantasov ◽  
B.T. Omarov ◽  
...  
Keyword(s):  
Sandy Loam ◽  
Mineral Fertilizer ◽  
Field Testing ◽  
Fertilizer Application ◽  
Sandy Loam Soil ◽  
Mineral Fertilizers ◽  
Essential Difference ◽  
Loam Soil ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

Analysis of modern scientific literature and patents has shown the absence of acid-free production technology of a mechanically activated multicomponent mineral fertilizer containing water-holding substances. Experimental researches connecting with mechanochemical activation and physicochemical properties of Karatau phosphorites prove a possibility of development of a new multicomponent mineral fertilizer. Application of inorganic and organic activators considerably improves qualities of fertilizers because the developed fertilizer mixtures contain nitrogen, phosphorus, potassium, humate and microelements. The suggested technology intends to use wastes of coal mining that leads to presence of humates and microelements in the end product. It was determined, that content of total nitrogen, phosphorus and potassium depends on a form of nitrogen-phosphorus-potassium-containing substances. The given article contains data of researches connecting with use of multicomponent mineral fertilizers in field conditions for cotton cultivation on irrigated light sierozems consisting of soil-forming rocks of loess and loess-type clay loams. The research results show the increase of soil’s fertility and cotton’s productivity. Studying of agronomic efficiency of the new kinds of mechanically activated multicomponent mineral fertilizers at the cultivation of a bean-cereal mixture has been carried out in the Negorelsk experimental nursery-garden of the Belarus State Technical University on a sod-podzol sandy-loam soil and has shown the essential influence on productivity and quality of the bean-cereal mixture. The researches fulfilled on a sod-podzol sandy-loam soil have revealed the essential increase of key indicators of feed productivity. Application of the mineral fertilizers has promoted increase of nitrogen, phosphorus and potassium content in green plants. In so doing content of calcium and magnesium in green mass depends from quantity of the fertilizer used to a smaller extent. An essential difference of crop capacity and feed productivity indicators depending on forms of the applied mineral fertilizers has not been found.

Population size and specific potential of P-mineralizing and -solubilizing bacteria under long-term P-deficiency fertilization in a sandy loam soil

Pedobiologia ◽  
2009 ◽  
Vol 53 (1) ◽  
pp. 49-58 ◽  
Author(s):  
Junli Hu ◽  
Xiangui Lin ◽  
Junhua Wang ◽  
Haiyan Chu ◽  
Rui Yin ◽  
...  
Keyword(s):  
Population Size ◽  
Sandy Loam ◽  
Sandy Loam Soil ◽  
P Deficiency ◽  
Loam Soil ◽  
Specific Potential
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