scholarly journals EFFECT OF FERTILIZER NITROGEN AND CLIPPING FREQUENCY ON THE CRUDE PROTEIN CONTENT, CRUDE PROTEIN YIELD AND APPARENT NITROGEN RECOVERY OF INTERMEDIATE WHEATGRASS

1970 ◽  
Vol 50 (6) ◽  
pp. 723-730
Author(s):  
T. LAWRENCE ◽  
F. G. WARDER ◽  
R. ASHFORD
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
N Fertilizer ◽  
Protein Yield ◽  
N Recovery ◽  
Crude Protein Content ◽  
Fertilizer Rate ◽  
Fertilizer Nitrogen ◽  
Intermediate Wheatgrass ◽  
Apparent Nitrogen Recovery

The effects of six rates of N fertilizer and five frequencies of clipping on the crude protein content, crude protein yield, and apparent recovery of N in intermediate wheatgrass, Agropyron intermedium (Host.) Beauv., were studied for three years on irrigated land. The crude protein content of intermediate wheatgrass increased with increasing rates of N fertilizer, and decreased with longer intervals between clippings. Applications of N fertilizer resulted in increased yields of crude protein. Clipping interval did not have a consistent influence on crude protein yield of intermediate wheatgrass. Apparent N recoveries ranged from 27% in the first crop year to over 50% in subsequent years. Neither fertilizer rate nor clipping interval had a consistent influence on N recovery.

PRODUCTIVITY OF INTERMEDIATE WHEATGRASS AS INFLUENCED BY DATE OF INITIAL CUTTING, HEIGHT OF CUTTING, AND N FERTILIZER

1973 ◽  
Vol 53 (2) ◽  
pp. 295-301 ◽  
Author(s):  
T. LAWRENCE
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Dry Matter ◽  
N Fertilizer ◽  
Protein Yield ◽  
Dry Matter Yield ◽  
Crude Protein Content ◽  
Intermediate Wheatgrass ◽  
Agropyron Intermedium ◽  
Cutting Height

The interactions of three dates of initial cutting followed by one or two subsequent cuttings, three heights of cutting, and four fertilizer treatments on the dry matter yield, crude protein content, and crude protein yield of intermediate wheatgrass (Agropyron intermedium (Host.) Beauv.) were studied on irrigated land for 2 yr. Cutting on 15 June during the shot blade stage resulted in severe summer killing. Variation in height of cutting and N fertilizer levels resulted in differences in annual yields. On the basis of the 2-yr mean yield, however, these differences were masked by interaction of these factors with years. Crude protein content of the forage at cut 1 decreased with the deferment of the first cut, was not influenced by height of cutting, but increased with increases in N fertilizer. The yield of crude protein increased with increasing levels of N fertilizer and showed significant interactions for year × date of initial cutting × fertilizer and years × date of initial cutting × height of cutting. Split applications of N fertilizer showed no advantage over a single spring application in either year.

EFFECT OF STAGE AND HEIGHT OF CUTTING ON THE CRUDE PROTEIN CONTENT AND CRUDE PROTEIN YIELD OF INTERMEDIATE WHEATGRASS, BROMEGRASS, AND REED CANARYGRASS

1971 ◽  
Vol 51 (1) ◽  
pp. 41-48 ◽  
Author(s):  
T. LAWRENCE ◽  
F. G. WARDER ◽  
R. ASHFORD
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Phalaris Arundinacea ◽  
Bromus Inermis ◽  
Protein Yield ◽  
Crude Protein Content ◽  
Stages Of Development ◽  
Reed Canarygrass ◽  
Intermediate Wheatgrass ◽  
Agropyron Intermedium

The effects of harvesting at three heights of cutting and four stages of development on the crude protein content and crude protein yield of intermediate wheatgrass, Agropyron intermedium (Host.) Beauv., bromegrass, Bromus inermis Leyss., and reed canarygrass, Phalaris arundinacea L., were studied on irrigated land. Reed canarygrass had a higher crude protein content at clip 1 than bromegrass, which in turn contained more than intermediate wheatgrass. Grass cut at the vegetative and shotblade stages of development contained more protein than that cut at either the flower or seed stage. Neither species nor stage of growth at the time of taking the initial harvest had a consistent influence on the yield of crude protein.

scholarly journals Çukurova İkinci Ürün Koşullarında Yetiştirilen Silajlık Mısır (Zea mays L.) Çeşitlerinin Verim ve Silaj Kalite Performanslarının Değerlendirilmesi

2019 ◽  
Vol 7 (sp1) ◽  
pp. 13
Author(s):  
Yasin Korkmaz ◽  
Tugay Ayasan ◽  
Sait Aykanat ◽  
Mustafa Avcı
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Dry Matter ◽  
Agricultural Research ◽  
Eastern Mediterranean ◽  
Protein Yield ◽  
Dry Matter Yield ◽  
Crude Protein Content ◽  
Silage Maize ◽  
Maize Varieties

The research was carried out in the Eastern Mediterranean Agricultural Research Institute-Hacı Ali location with 4 replications according to the randomized block trial design in 2013-2014. 13 public and 1 private sector maize variety were used as material in the trials. According to the results of the analysis, it was determined that the maize varieties examined showed statistically significant differences in plant properties, dry grass and silage quality. Average plant height, number of leaves, leaf ratio, stem diameter, number of cob, stem ratio, cob ratio and green grass yield were 249.9 cm, 12.97 plant/piece, 19.24%, 22.08 mm, 0.93 plant/unit, 38.40% and 4,251.57 kg/da respectively. According to the analysis, it was observed that the average crude protein content, ADF ratio, NDF ratio, crude ash content, digestible dry matter ratio, crude protein yield, dry matter rate, dry matter yield and hay yield were 8.80%, 34.91%, 59.7%, 7.2%, 61.7%, 993.9 kg/ha, 29.4%, 11,640 kg/ha 12,570 kg/ha in dry grass, respectively. For the silage of varieties, the average crude protein content, ADF ratio, NDF ratio, pH, digestible dry matter rate, dry matter ratio, crude protein yield and Fleig score were 8.22%, 29.27%, 50.48%, 3.57, 66.1%, 28.14%, 926 kg/ha and 118.35, respectively. Burak, Sasa 1 and Ada 334 genotypes performed better in terms of green yield per hectare (53,650, 50,290 and 45,630 kg/ha) and dry matter yield (14,710, 12,810 and 12,410 kg/ha). These varieties can be recommended to producers as silage maize varieties under second crop conditions in Çukurova region of Turkey.

Impact of mineral and complex fertilizers on grain yield of winter rye in Northwest Russia

2020 ◽  
Author(s):  
М.В. Дятлова ◽  
Е.С. Волкова ◽  
Т.В. Шайкова
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Mineral Nutrition ◽  
Seed Treatment ◽  
Crude Protein ◽  
Kernel Weight ◽  
Protein Yield ◽  
Winter Rye ◽  
Crude Protein Content ◽  
Grain Productivity

В исследованиях были изучены способы внесения комплексных удобрений: предпосевная обработка семян комплексным удобрением «Микромак» и двухкратное некорневое внесение препаратов «Кодима Р», «Кодафол», «Микроэл», «Страда N» на двух фонах минеральных удобрений. Внесение минеральных удобрений в дозах N40P50K70 в качестве основного удобрения способствовало повышению зерновой продуктивности на 0,29–0,66 т/га, или на 7,0–16,0% к контролю. Все изучаемые препараты — «Кодима Р», «Кодафол», «Микроэл», «Страда N» — при некорневом внесении, а также комплексное удобрение «Микромак» при обработке семян перед посевом оказывали положительное влияние на урожайность зерна озимой ржи. В вариантах с допосевной обработкой семян препаратом «Микромак» и двухкратным весенним внесением комплексного удобрения «Страда N» на фоне минеральных удобрений N40P50K70 зерновая продуктивность озимой ржи увеличилась на 0,46 т/га, а на фоне N40P50K70 + N20 + некорневая подкормка препаратом «Микроэл» — на 0,33 т/га за счёт формирования большего числа продуктивных стеблей и массы 1000 зёрен. Предпосевная обработка семян препаратом «Микромак» повысила урожайность озимой ржи в контрольном варианте на 0,31 т/га. Отмечено положительное действие данного препарата на элементы структуры урожая: увеличилось число продуктивных стеблей с 2,9 до 3,6 шт., масса 1000 зёрен выросла с 29,0 до 30,4 г. Содержание сырого протеина в зерне ржи в вариантах без обработки семян было на уровне 6,4–9,8%, а с обработкой препаратом «Микромак» — от 9,4 до 12,1%. Выход сырого протеина с урожаем зерна в данных вариантах был более высоким и составил 450–600 кг/га, что на 130–160 кг/га больше, чем в вариантах без обработки. Применение комплексных универсальных удобрений «Микроэл» и «Страда N» на фоне N40P50K70 обеспечивало дополнительный сбор сырого протеина на уровне 110 кг/га. The research tested the application of complex fertilizers such as seed treatment with “Mikromak” and double topdressing by “Kodima R”, “Kodafol”, “Mikroel”, and “Strada N” on two backgrounds of mineral nutrition. Application of N40P50K70 increased grain productivity by 0.29–0.66 t ha-1 or 7.0–16.0%. All the preparations positively affected grain yield of winter rye. “Mikromak” and “Strada N” improved grain productivity by 0.46 t ha-1 on the background of N40P50K70 while “Mikromak” and “Mikroel” — by 0.33 t ha-1 on the background of N40P50K70 + N20 due to high number of reproductive stems and 1000 kernel weight. Seed treatment by “Mikromak” improved productivity of control plants by 0.31 t ha-1. “Mikromak” positively affected the number of productive stems from 2.9 to 3.6 pcs, 1000 kernel weight increased from 29.0 to 30.4 g. Crude protein content reached 6.4–9.8% in untreated seeds and 9.4–12.1% — when using “Mikromak”. Crude protein yield amounted to 450–600 kg ha-1 under “Mikromak” application exceeding the untreated variants by 130–160 kg ha-1. Application of “Mikroel” and “Strada N” provided the increase in crude protein of 90–110 kg ha-1 on the background of N40P50K70.

Effect of stage of maturity of forage oats on crude protein content and dry-matter yield

1984 ◽  
Vol 102 (1) ◽  
pp. 251-252 ◽  
Author(s):  
A. Haile
Keyword(s):  
Chemical Composition ◽  
Protein Content ◽  
Crude Protein ◽  
Dry Matter ◽  
Tropical Climate ◽  
Protein Yield ◽  
High Yield ◽  
Dry Matter Yield ◽  
Crude Protein Content ◽  
Forage Crops

The management of non-leguminous annual forage crops can affect dry matter (D.M.) yields, chemical composition, and nutritive (feeding) values largely because of the stage of maturity at which the crop is harvested. After studies for selecting high-yield forage oat varieties for a highaltitude tropical climate (Haile, 1976), it was considered necessary to look into the management of forage oats so that the time of harvesting for maximum forage and crude protein yield could be established.

Early productivity and crude protein content of establishing forage swards composed of combinations of native grass and legume species in mixed-grassland ecoregions

2013 ◽  
Vol 93 (3) ◽  
pp. 445-454 ◽  
Author(s):  
Jenalee M. Mischkolz ◽  
Michael P. Schellenberg ◽  
Eric G. Lamb
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Plant Density ◽  
Warm Season ◽  
Forage Yield ◽  
Schizachyrium Scoparium ◽  
Legume Species ◽  
Crude Protein Content ◽  
Native Grass ◽  
Western Wheatgrass

Mischkolz, J. M., Schellenberg, M. P. and Lamb, E. G. 2013. Early productivity and crude protein content of establishing forage swards composed of combinations of native grass and legume species in mixed-grassland ecoregions. Can. J. Plant Sci. 93: 445–454. We evaluated the early establishment productivity of forage swards of native, perennial, cool and warm season grasses, and legumes as they have the potential to provide non-invasive, productive, and drought resistant rangelands. Seven species with agronomic potential and a broad native geographic distribution were selected for testing including: nodding brome [Bromus anomalus (Coult.)], blue bunch wheatgrass [Pseudoregneria spicata (Pursh)], western wheatgrass [Pascopyrum smithii (Rydb.)], side oats grama [Bouteloua curtipendula (Michx.)], little blue stem [Schizachyrium scoparium (Michx.)], purple prairie clover [Dalea purpurea (Vent.)], and white prairie clover [Dalea candida (Willd.)]. Forage swards, including all seven monocultures, 21 two-species mixtures and a mixture with all species, were planted in two sites, Saskatoon and Swift Current, Saskatchewan. Western wheatgrass (WWG) had the highest overall plant density and the strongest effect on the forage yield of the forage swards; however, productivity and crude protein content were not reduced when other species were also included in the forage sward. Dalea spp. did not establish as well as the other species, but had the highest crude protein concentrations. This work provides insight into forage sward development at the establishment stage; additional work is required to determine long-term species impacts for well established forage swards.

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