UTJECAJ ORGANSKE GNOJIDBE NA PRINOS, KEMIJSKI SASTAV I HRANIDBENU VRIJEDNOST ZRNA KUKURUZA

Autor: Želimir Vukobratović, Marija Vukobratović, Vinko Pintić, Franjo Poljak, Nataša Pintić-Puklec, Marija Premec
Jazyk: chorvatština
Rok vydání: 2010
Předmět:
Zdroj: Krmiva : Časopis o hranidbi životinja, proizvodnji i tehnologiji krme
Volume 52
Issue 3
ISSN: 1848-901X
0023-4850
Popis: Zbog sve većeg zanimanja za zaštitu okoliša, povećanje plodnosti tla, ali i zbog mogućnosti dodatnog zapošljavanja stanovništva ruralnih područja, na pokušalištu Visokog gospodarskog učilišta u Križevcima, provedeno je istraživanje o mogućnostima proizvodnje stočne hrane na principima ekološke poljoprivrede. Pokus je postavljen po slučajnom bloknom rasporedu u četiri ponavljanja. Veličina parcele svakoga gojidbenog tretmana iznosila je 70 m2, a tretmani su bili: I - kontrola (bez gnojidbe); II - mineralna gnojidba (200 kg ha-1 N, 150 kg ha-1 P2O5 i 300 kg ha-1 K2O); III - 10 t ha-1 komposta od goveđeg gnoja; IV - 10 t ha-1 komposta od konjskog gnoja; V - 10 t ha-1 komposta od separata svinjske gnojovke; VI - 6 t ha-1 komposta od pilećeg gnoja. Istraživanje je provedeno tijekom 2008. s hibridom kukuruza Pioneer PR38A24 FAO skupine 380. Najveći ostvareni prinos (14,95 t ha-1) i najveći sadržaj sirovih proteina (98,28 g kg-1) utvrđeni su kod tretmana II (mineralna gnojidba), dok su prinosi gojidbenih tretmana III – VI, kod kojih su primjenjivana organska gnojiva, manji za 23 – 32%, a sadržaj sirovih proteina za 13 – 36%. Nasuprot tome sadržaj sirovih masti, ME i NEL-a po kg suhe tvari najmanji su kod tretmana II (mineralna gnojidba), a značajno veći kod tretmana gdje su korištena organska gnojiva različitog podrijetla. Analizom varijance utvrđeno je da između svih prosječnih analitičkih parametara postoje statistički značajne razlike na 5%-tnoj razini (P
Following the increased interest in environment protection and increase in the soil fertility, as well as the possibility for additional employment of the inhabitants in the rural area, a research into the possibilities to produce animal feedstuffs was conducted on the experimental field of the College of Agriculture at Križevci. The experiment was set in a randomized block scheme with four repetitions. The size of the plot for each fertilization treatment was 70 sq m. The treatments were the following: I-control (no fertilization), II- mineral fertilizers (200 kg ha-1 N, 150 kg ha-1 P2O5 and 300 kg ha-1 K2O), III – 10 t ha-1 cow manure compost, VI - 10 t ha-1 horse manure compost; V - 10 t ha-1 composted pig slurry, VI – 6 t ha-1 composted poultry manure. The experiment was conducted in 2008 using the maize hybrid Pioneer PR38A24 FAO group 380. The highest yield (14.95 t ha-1) and the highest raw protein content (98.28 g kg-1) were determined for treatment II (mineral fertilizers), while the yield with treatments III-VI, in which organic fertilizers were used, was 23 to 32% lower, and the protein content was 13-36% lower. Contrary to that, the crude fats, ME and NEL content per kg of the dry matter was lowest for treatment II (mineral fertilization) and significantly higher in treatments where variations of organic fertilizers were used. The analysis of variance showed statistically significant differences between all average analytical parameters at the level of 5 per cent (P
Databáze: OpenAIRE
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